Breeding value for cassava mosaic disease resistance analyzed in a seedling nursery
|
|
- Kory Blake
- 6 years ago
- Views:
Transcription
1 Breeding value for cassava mosaic disease resistance analyzed in a seedling nursery Kulakow Peter A. 1, Bakare Moshood A. 1, Agbona Afolabi 1, Parkes Elizabeth Y. 1, Ceballos Hernan 2, Rabbi Ismail Y. 1, Olaniyo Esther 1, Andrew Ikpan S. 1, Iluebbey Peter O. 1, Lava Kumar P. 1 and Nokoe K. Sagary 3 1 Cassava Breeding program IITA Ibadan, Nigeria 2 CIAT, Cali Colombia 3 Catholic University of Eastern, Africa, Nairobi Kenya World Congress on Root and Tuber Crops Nanning, Guangxi, China, January 18-22, 2016
2
3 Problem statement Ø Cassava Mosaic Disease (CMD) is serious threat to cassava production in Africa and has been a major objective in breeding for improved varieties. Ø CMD is by caused by several begomoviruses and is transmitted by the white fly (Bemisia tabasci) Ø Most exotic germplasm introduced from Latin America to Africa is highly susceptible to CMD Ø Breeding Resistant varieties has provided effective control of CMD
4 Cassava mosaic disease ACMV only ACMV+EACMV ACMV+EACMV
5
6 Host resistance in controlling CMD Resistant Susceptible CMD 1 quantitative resistance (recovery resistance) Not very effective against mixed infections and some severe strains CMD 2 High levels of resistance (qualitative!) Offers resistant to single and mixed infections of all species
7 Problem statement Ø However, recent genomic evidence has show the genetic base of CMD resistance is narrow with most resistance mapping to Chromosome12 of the newest version of the cassava genome. Ø Our challenge is to find new sources of CMD resistance to broaden the sources of resistance in Africa and to pre-emptively breed for CMD resistance in Asia and Latin America
8 Materials and Methods Ø Since CMD is not transmitted through botanic seed. Seedling nurseries provide an opportunity to evaluate parents and progeny for resistance to CMD beginning with disease free seedlings. Ø In 2009 IITA received 5000 botanic seed from CIAT with a high beta-carotene background Ø In January 2010, at one month after transplanting seedlings to the field, 2472 plants had an average cmd severity of 3.43 and cmd incidence of 78% Ø 42 plants eventually flowered and were used in in crosses as male parents to sources of CMD resistance.
9 Ø A few plants of these parents and other selected CIAT seedlings have been clonally propagated as genetic stocks with good cmd resistance. These have been used in further crosses. Ø An unreplicated seedling nursery trial established with 158 female parents crossed 56 male parents. Ø There are 418 full-sib crosses established with and average progeny size of 32 plants per family resulting in a seedling nursery with 13,250 plants. Seedlings were transplanted in April 2015 Ø CMD susceptible clone (TMEB117) was used as a spreader
10 Ø All individual seedlings were tagged to facilitate data collection. Ø CMD severity was scored monthly from 2 to 6 months after planting. Ø Binary response of CMD incidence was recorded based on the presence or absence of leaf symptoms Ø The probability of CMD infection was fitted to mixed effects logistic regression model in SAS with the GLIMMIX procedure
11 Ø Fixed factors in the model q Block design factor q Northing and easting as covariates Spatial effect Ø Random factors in the model q Family q Female parent q Male parent
12 Results Distribution of families with or without CIAT parents/grandparents Group No. family Family % Mean cmdi std No_CIAT_parent/grandparent One_grandparent_from_CIAT One_parent_from_CIAT Two_grandparents_from_CIAT Two_parents_from_CIAT
13 Estimates of variance component parameters Month of CMD evalua/on Variance component Family 0.35± ± ± ± ±0.06 Female 0.24± ± ± ± ±0.06 Male 0.33± ± ± ± ±0.17
14 Estimates of Spatial fixed effects distance to CMD spreader Effect Month Estimate Std Error t Value Pr > t 95% LCL 95% LCL Northing Easting Northing Easting Northing Easting Northing Easting Northing Easting
15 Trends of CMD infection by CIAT parent groups over months
16 Obs male N BLUP Estimate StdErrPred predicted_prob actual cmd6i 1 IBA IBA IBA IBA IBA IBA IBA IBA SM IBA UBJ GM IBA IBA SM GM GM IBA SM SM
17 Conclusions Ø Ø Ø The trends of the CMD infection is relatively similar across the families with/without CIAT parent/grandparent Families with CIAT and non-ciat parents exhibited low likelihood of CMD infection At least 6 genotypes derived from botanic seed received from CIAT appear to have good breeding value for CMD resistance. Genotype Pedigree GM GM X GM SM GM GM X GM GM GM X GM SM SM
18 Conclusions 1. The spatial fixed effects of northing and easting distance from plot to CMD spreader had no significant influence on predicted probability of CMD infection suggesting that inoculum spread had sufficient for even spread of disease 2. The fittings of GLMMs to disease status (0/1) gave BLUPs estimate for families and parents from which predicted probability of CMD infection can be estimated 3. The family and parents accounted for significant amount of variation in predicted probability of CMD infection
19 Conclusions 4. Seedling nurseries likely can provide useful information on the breeding value of parents. 5. It appears that CMD resistance can be recovered from Latin American germplasm. Further exploration of the genetic background of these genotypes is needed. 6. Further exploration of Latin American germplasm as a source for CMD resistance is warranted.
20 Acknowledgments We appreciate the support of Harvest Plus and its partners for support of biofortification breeding in cassava The CGIAR research program on Roots, Tubers and Bananas has provided the foundational support for cassava breeding that makes this work possible. Alfred Dixon and Paul Ilona developed the breeding materials through 2009 and initiated the collaboration with CIAT on biofortified cassava.
21 Thank you
THE USE OF DOUBLED-HAPLOIDS IN CASSAVA BREEDING
150 THE USE OF DOUBLED-HAPLOIDS IN CASSAVA BREEDING Hernan Ceballos 1, J.C. Pérez 1, C. Iglesias 2, M. Fregene 1, F. Calle 1, G. Jaramillo 1, N. Morante 1 and J. López 1 ABSTRACT Cassava breeding is difficult
More informationSeed Production Strategies and Progeny Selection in Greater Yam Breeding
Seed Production Strategies and Progeny Selection in Greater Yam Breeding K. Abraham, M. T. Sreekumari and M. N. Sheela Central Tuber Crops Research Institute Trivandrum, India Greater yam a food crop of
More informationResearch Notes: G. B. Pant University of Agriculture and Technology
Volume 1 Article 6 4-1-1974 Research Notes: G. B. Pant University of Agriculture and Technology G. B. Pant University of Agriculture and Technology G. B. Pant University of Agriculture and Technology G.
More informationManaging segregating populations
Managing segregating populations Aim of the module At the end of the module, we should be able to: Apply the general principles of managing segregating populations generated from parental crossing; Describe
More informationGermplasm. Introduction to Plant Breeding. Germplasm 2/12/2013. Master Gardener Training. Start with a seed
Introduction to Plant Breeding Master Gardener Training Start with a seed Germplasm Germplasm The greatest service which can be rendered to any country is to add a useful plant to its culture -Thomas Jefferson
More informationIntroduction to Plant Breeding. Master Gardener Training
Introduction to Plant Breeding Master Gardener Training Start with a seed Germplasm Germplasm The greatest service which can be rendered to any country is to add a useful plant to its culture -Thomas Jefferson
More informationGenetics and Genetic Prediction in Plant Breeding
Genetics and Genetic Prediction in Plant Breeding Which traits will be most responsive to selection? What stage will be best to select for specific characters? What environments are most suited to the
More informationDetection of triploids in the INRA collection
Wild cherry triploids: a chance for forest breeders? L Serres-Giardi, J Dufour, F Santi VALBRO Growing Valuable Broadleaved Tree species 2008, October 6-8 Freiburg - Germany A L I M E N T A T I O N A G
More informationEVALUATION OF WILD JUGLANS SPECIES FOR CROWN GALL RESISTANCE
EVALUATION OF WILD JUGLANS SPECIES FOR CROWN GALL RESISTANCE Ed Stover, Malendia Maccree, Malli Aradhya, Ali E. McClean, and Daniel A. Kluepfel INTRODUCTION Crown Gall disease of walnut is caused by the
More informationResearch on infection by S.subterranea and host resistance to powdery scab. Alison Lees
Research on infection by S.subterranea and host resistance to powdery scab Alison Lees PMTV/ S. subterranea infection experiment Jennie Brierley, Alison Roberts, Alison Lees PMTV/Spongospora Zoospores
More informationBACTERIAL DISEASES OF EUCALYPTUS
BACTERIAL DISEASES OF EUCALYPTUS T.A. Coutinho, S.N. Venter, J. Roux, X.D. Zhou and M.J. Wingfield ACPP APPS, Darwin 2011 INTRODUCTION Estimated 18m ha of Eucalyptus planted in 80 countries Numerous fungal
More informationPlant Propagation PLS 3221/5222
Plant Propagation PLS 3221/5222 Dr. Sandra Wilson Dr. Mack Thetford Chapter 2 Introduction to the Biology of Plant Propagation -A review- 1 The Plant Breeder and the Plant Propagator Plant Breeder, The
More informationCryotherapy: A New Method to Eliminate Pathogens from Sweetpotato Propagation Materials
Cryotherapy: A New Method to Eliminate Pathogens from Sweetpotato Propagation Materials Margaret Worthington Graduate Group in Horticulture and Agronomy University of California, Davis April 14, 2009 http://www.judithbarathart.com
More informationLecture 9. Short-Term Selection Response: Breeder s equation. Bruce Walsh lecture notes Synbreed course version 3 July 2013
Lecture 9 Short-Term Selection Response: Breeder s equation Bruce Walsh lecture notes Synbreed course version 3 July 2013 1 Response to Selection Selection can change the distribution of phenotypes, and
More informationTransferring Powdery Mildew Resistance Genes from Wild Helianthus into Cultivated Sunflower. Pilar Rojas-Barros, Chao-Chien Jan, and Thomas J.
Transferring Powdery Mildew Resistance Genes from Wild Helianthus into Cultivated Sunflower Pilar Rojas-Barros, Chao-Chien Jan, and Thomas J. Gulya USDA-ARS, Northern Crop Science Laboratory, Fargo, ND
More informationImporting Plant Stock for Wetland Restoration and Creation: Maintaining Genetic Diversity and Integrity
Wetlands Regulatory Assistance Program ERDC TN-WRAP-00-03 Importing Plant Stock for Wetland Restoration and Creation: Maintaining Genetic Diversity and Integrity PURPOSE: This technical note provides background
More informationThe impact of Agrobacterium tumefaciens and other soil borne disease causing agents of economic importance in production of roses
The impact of Agrobacterium tumefaciens and other soil borne disease causing agents of economic importance in production of roses Video conference on global competitiveness of the flower industry in the
More informationDoubled haploid ramets via embryogenesis of haploid tissue cultures
Doubled haploid ramets via embryogenesis of haploid tissue cultures Harry E. Iswandar 1, J. M. Dunwell 2, Brian P. Forster 3, Stephen P. C. Nelson 1,4 and Peter D. S. Caligari,3,4,5 ABSTRACT Tissue culture
More informationMODEL-FREE LINKAGE AND ASSOCIATION MAPPING OF COMPLEX TRAITS USING QUANTITATIVE ENDOPHENOTYPES
MODEL-FREE LINKAGE AND ASSOCIATION MAPPING OF COMPLEX TRAITS USING QUANTITATIVE ENDOPHENOTYPES Saurabh Ghosh Human Genetics Unit Indian Statistical Institute, Kolkata Most common diseases are caused by
More informationThe concept of breeding value. Gene251/351 Lecture 5
The concept of breeding value Gene251/351 Lecture 5 Key terms Estimated breeding value (EB) Heritability Contemporary groups Reading: No prescribed reading from Simm s book. Revision: Quantitative traits
More informationEvaluation of sweet sorghum hybrid parents for resistance to grain mold, anthracnose, leaf blight and downy mildew
Evaluation of sweet sorghum hybrid parents for resistance to grain mold, anthracnose, leaf blight and downy mildew RP Thakur*, Rajan Sharma, P Srinivasa Rao, P Sanjana Reddy, VP Rao and Belum VS Reddy
More informationPrinciples of QTL Mapping. M.Imtiaz
Principles of QTL Mapping M.Imtiaz Introduction Definitions of terminology Reasons for QTL mapping Principles of QTL mapping Requirements For QTL Mapping Demonstration with experimental data Merit of QTL
More informationApplying crown gall research-based knowledge to orchard management. E. Fichtner, UCCE Tulare County
Applying crown gall research-based knowledge to orchard management E. Fichtner, UCCE Tulare County Paradox: Juglans hindsii x Juglans regia Crown Gall Common in walnut Paradox rootstock susceptible Less
More informationDeterioration of Crop Varieties Causes and Maintenance
Deterioration of Crop Varieties Causes and Maintenance Deterioration of Genetic Purity The genetic purity of a variety or trueness to its type deteriorates due to several factors during the production
More informationSituation of corn in Myanmar
Situation of corn in Myanmar Phyu Phwe New Plant Variety Protection Unit Department of Agricultural Research(DAR) (2. 8.2016) Introduction Maize - second mandate cereal in Myanmar after rice Mainly utilized
More informationI to the renewed scientific interest in the introduction of cotton stocks from
THE GENETICS OF FLOWERING RESPONSE IN COTTON. 11. INHERITANCE OF FLOWERING RESPONSE IN A GOSSYPIUM BARBADENSE CROSS1 C. F. LEWIS' AND T. R. RICHMOND Plant Industry Station, Beltsville, Maryland, and Dept.
More informationBacterial spot of pepper and tomato
Website to brush up on bacterial diseases Bacterial spot of pepper and tomato http://www.apsnet.org/edcenter/intropp/lessons/prokaryotes/pages/bacterialspot.aspx Potato blackleg and soft rot http://www.apsnet.org/edcenter/intropp/lessons/prokaryotes/pages/blacklegpotato.aspx
More informationA mixed model based QTL / AM analysis of interactions (G by G, G by E, G by treatment) for plant breeding
Professur Pflanzenzüchtung Professur Pflanzenzüchtung A mixed model based QTL / AM analysis of interactions (G by G, G by E, G by treatment) for plant breeding Jens Léon 4. November 2014, Oulu Workshop
More informationBS 50 Genetics and Genomics Week of Oct 3 Additional Practice Problems for Section. A/a ; B/B ; d/d X A/a ; b/b ; D/d
BS 50 Genetics and Genomics Week of Oct 3 Additional Practice Problems for Section 1. In the following cross, all genes are on separate chromosomes. A is dominant to a, B is dominant to b and D is dominant
More informationTitle: The Plant Disease Triangle - How Plants Defend Themselves, Part II Speaker: Dean Glawe. online.wsu.edu
Title: The Plant Disease Triangle - How Plants Defend Themselves, Part II Speaker: Dean Glawe online.wsu.edu Plant Pathology 501 Lecture 5 The Plant Disease Triangle How Plants Defend Themselves, Part
More information2015 Record breaking temperature anomalies
2015 Record breaking temperature anomalies June 2015 global temperature was the highest in 136 (since 1880) years reaching an average of 0.88 C above the 20 th century average. This is an increase of 0.12
More informationShort-Term Selection Response: Breeder s equation. Bruce Walsh lecture notes Uppsala EQG course version 31 Jan 2012
Short-Term Selection Response: Breeder s equation Bruce Walsh lecture notes Uppsala EQG course version 31 Jan 2012 Response to Selection Selection can change the distribution of phenotypes, and we typically
More informationInvestigations into biomass yield in perennial ryegrass (Lolium perenne L.)
Investigations into biomass yield in perennial ryegrass (Lolium perenne L.) Ulrike Anhalt 1,2, Pat Heslop-Harrison 2, Céline Tomaszewski 1,2, Hans-Peter Piepho 3, Oliver Fiehn 4 and Susanne Barth 1 1 2
More informationAn assessment of the risk of aerial transport of rust pathogens to the Western Hemisphere and within North America
An assessment of the risk of aerial transport of rust pathogens to the Western Hemisphere and within North America Scott A. Isard Departments of Plant Pathology and Meteorology Pennsylvania State University
More informationTowards the Ultimate Solution: Genetic Resistance to HLB in Commercial Citrus. Greening Summit Florida Citrus Growers Institute 2008
Towards the Ultimate Solution: Genetic Resistance to HLB in Commercial Citrus Greening Summit Florida Citrus Growers Institute 2008 Jude Grosser University of Florida, Citrus Research and Education Center,
More informationRESISTANCE TO WHITE RUST (Albugo tragopogonis) and EVIDENCE OF MULTIPLE GENES
RESISTANCE TO WHITE RUST (Albugo tragopogonis) and EVIDENCE OF MULTIPLE GENES T. J. Gulya, USDA-ARS, Northern Crop Science Laboratory, Fargo ND 58105, USA P. S. van Wyk, ARC Oil & Protein Centre, Potchefstroom
More informationU.S. Plant Patents and the Imazio Decision
U.S. Plant Patents and the Imazio Decision Robert J. Jondle, Ph.D., Esq. Castle Rock, Colorado (303) 799-6444 rjondle@jondlelaw.com www.jondlelaw.com Overview of U.S. Protection Options 1. Plant Patents
More informationReview of Mitosis and Meiosis
Review of Mitosis and Meiosis NOTE: Since you will have already had an introduction to both mitosis and meiosis in Biol 204 & 205, this lecture is structured as a review. See the text for a more thorough
More informationPitahayas: introduction, agrotechniques and breeding
Pitahayas: introduction, agrotechniques and breeding The French Associates Institute for Agriculture and Biotechnology of Drylands May 8 Noemi Tel-Zur The J. Blaustein Institutes for Desert Research Ben-Gurion
More informationCharacterization of ICRISAT-bred restorer parents of pearl millet
Characterization of ICRISAT-bred restorer parents of pearl millet SK Gupta 1 *, Ranjana Bhattacharjee 1,2, KN Rai 1 and M Suresh Kumar 1 1. International Crops Research Institute for the Semi-Arid Tropics
More informationINTRODUCTION TO ANIMAL BREEDING. Lecture Nr 3. The genetic evaluation (for a single trait) The Estimated Breeding Values (EBV) The accuracy of EBVs
INTRODUCTION TO ANIMAL BREEDING Lecture Nr 3 The genetic evaluation (for a single trait) The Estimated Breeding Values (EBV) The accuracy of EBVs Etienne Verrier INA Paris-Grignon, Animal Sciences Department
More informationPaper 9 Special Publication No. 5 BETWEEN PLANT VARIATION OF ASPARAGUS CULTIV ARS
N.Z. Agronomy Society Paper 9 Special Publication No. 5 BETWEEN PLANT VARIATION OF ASPARAGUS CULTIV ARS A.S. Nikoloff, P. Ensor, T.P. Palmer Crop Research Division DSIR, Lincoln New Zealand A.R. Wallace
More informationYou are required to know all terms defined in lecture. EXPLORE THE COURSE WEB SITE 1/6/2010 MENDEL AND MODELS
1/6/2010 MENDEL AND MODELS!!! GENETIC TERMINOLOGY!!! Essential to the mastery of genetics is a thorough knowledge and understanding of the vocabulary of this science. New terms will be introduced and defined
More informationDiseases of cacao in Colombia: What we know and what we need to know.
Diseases of cacao in Colombia: What we know and what we need to know. Bryan A. Bailey a, Shahin S. Ali a, Mary D. Strem a, Alina Campbell b, Osman GuAerrez b, Dapeng Zhang a, Lyndel W. Meinhardt a a Sustainable
More informationSomaclonal Variation
Tissue-culture cycle involves: dedifferentiation in culture proliferation of cells (implies sev. cell generations removed from original differentiated cell) subsequent regeneration to plants no selection
More informationEvolution of sugarcane leaf scald in Guadeloupe and impact on disease management
1 Evolution of sugarcane leaf scald in Guadeloupe and impact on disease management J. H. Daugrois 1, D. Roques 1 and P. Rott 1 CIRAD and UMR BGPI Abstract Cirad s research on leaf scald of sugarcane in
More informationPlant Pathology Fact Sheet
Plant Pathology Fact Sheet PP-22 Selerotinia Diseases of Vegetable and Field Crops in Florida Ken Pernezny and L. H. Purdy, Professor, Everglades Research and Education Center, Belle Glade; and Professor,
More informationWhat do plants compete for? What do animals compete for? What is a gamete and what do they carry? What is a gene?
How are these animals adapted to their surroundings: - a) Polar bear b) Camel c) Cactus What do plants compete for? What do animals compete for? What is a gamete and what do they carry? What is a gene?
More information4.6.1 Reproduction Sexual and asexual reproduction Meiosis. Key opportunities for. development. skills development
4.6 Inheritance, variation and evolution In this section we will discover how the number of chromosomes are halved during meiosis and then combined with new genes from the sexual partner to produce unique
More informationEvolution of phenotypic traits
Quantitative genetics Evolution of phenotypic traits Very few phenotypic traits are controlled by one locus, as in our previous discussion of genetics and evolution Quantitative genetics considers characters
More informationLegend: S spotted Genotypes: P1 SS & ss F1 Ss ss plain F2 (with ratio) 1SS :2 WSs: 1ss. Legend W white White bull 1 Ww red cows ww ww red
On my honor, this is my work GENETICS 310 EXAM 1 June 8, 2018 I. Following are 3 sets of data collected from crosses: 1. Spotted by Plain gave all spotted in the F1 and 9 spotted and 3 plain in the F2.
More informationPlant Propagation PLS 3221/5222. Guest Web Lecture Dr. Rosanna Freyre UF Gainesville
Plant Propagation PLS 3221/5222 Guest Web Lecture Dr. Rosanna Freyre UF Gainesville Breeding Ornamental Plants Chapter 5 Guest Lecture Objectives are to Understand: Difference between sexual and clonal
More informationPlant Propagation PLS 3223/5222
Plant Propagation PLS 3223/5222 Dr. Sandra Wilson Dr. Mack Thetford Principles and Practices of Seed Selection Chapter 5 1 Chapter 5 Objectives are to Understand: Self and cross pollination Sexual incompatibility
More informationEstimates of Variability for Growth and Yield Attributes in Taro (Colocasia esculenta var. Antiquorum (L.) Schott)
International Journal of Current Microbiology and Applied Sciences ISSN: 2319-7706 Volume 6 Number 8 (2017) pp. 1282-1286 Journal homepage: http://www.ijcmas.com Original Research Article https://doi.org/10.20546/ijcmas.2017.608.155
More informationProf. Dr. (HP) Alfas Pliūra
Paprastosios pušies šeimų sėjinukų augimo ypatybės azoto ir mikorizės poveikyje Growth peculiarities of seedlings of Scots pine families under nitrogen and mycorrhiza impact Prof. Dr. (HP) Alfas Pliūra
More informationLaboratory III Quantitative Genetics
Laboratory III Quantitative Genetics Genetics Biology 303 Spring 2007 Dr. Wadsworth Introduction Mendel's experimental approach depended on the fact that he chose phenotypes that varied in simple and discrete
More informationResistance to powdery mildew and Cercospora leaf spot of multigerm dihaploid sugar beet lines and its inheritance in their hybrids
RESEARCH PAPER OPEN ACCESS Resistance to powdery mildew and Cercospora leaf spot of multigerm dihaploid sugar beet lines and its inheritance in their International Journal of Agronomy and Agricultural
More informationBREEDING, GENETICS, AND PHYSIOLOGY. Phenotypic Analysis of the 2006 MY2 Mapping Population in Arkansas
BREEDING, GENETICS, AND PHYSIOLOGY Phenotypic Analysis of the 2006 MY2 Mapping Population in Arkansas E.J. Boza, K.A.K. Moldenhauer, R.D. Cartwright, S. Linscombe, J.H. Oard, and M.M. Blocker ABSTRACT
More informationScience Unit Learning Summary
Learning Summary Inheritance, variation and evolution Content Sexual and asexual reproduction. Meiosis leads to non-identical cells being formed while mitosis leads to identical cells being formed. In
More informationBIOLOGY EOC Georgia Milestones Guide. By Flavia Johnson and Patsy Kraj
BIOLOGY EOC 2018 Georgia Milestones Guide By Flavia Johnson and Patsy Kraj WHAT S THE EOC?! EOC stands for End Of Course and is also know as the Georgia Milestones End-of-Course Assessments The EOC is
More informationMONOSOMIC ANALYSIS OF ADULT-PLANT RESISTANCE TO LEAF RUST IN THE BRAZILlAN WHEAT CULTIVAR 'TOROPI' 1. Abstract
MONOSOMIC ANALYSIS OF ADULT-PLANT RESISTANCE TO LEAF RUST IN THE BRAZILlAN WHEAT CULTIVAR 'TOROPI' 1. Brammer, S.P.2, Worland, A. 3, Barcellos, A.L. 2, Fernandes, M.I.B. de M. 2 Abstract Favorable environment
More informationDetailed Course Outline
Detailed Course Outline Unit 1 Worlds of Opportunity Lesson 1.1 A World without Enough Plants 1. Many people work in a variety of agricultural enterprises to produce food, fiber, and fuel, which are essential
More informationA recipe for the perfect salsa tomato
The National Association of Plant Breeders in partnership with the Plant Breeding and Genomics Community of Practice presents A recipe for the perfect salsa tomato David Francis, The Ohio State University
More informationProblem Set 3 10:35 AM January 27, 2011
BIO322: Genetics Douglas J. Burks Department of Biology Wilmington College of Ohio Problem Set 3 Due @ 10:35 AM January 27, 2011 Chapter 4: Problems 3, 5, 12, 23, 25, 31, 37, and 41. Chapter 5: Problems
More informationWhat is a sex cell? How are sex cells made? How does meiosis help explain Mendel s results?
CHAPTER 6 3 Meiosis SECTION Heredity BEFORE YOU READ After you read this section, you should be able to answer these questions: What is a sex cell? How are sex cells made? How does meiosis help explain
More informationAssessment Schedule 2017 Biology: Demonstrate understanding of biological ideas relating to the life cycle of flowering plants (90928)
NCEA Level 1 Biology (90928) 2017 page 1 of 5 Assessment Schedule 2017 Biology: Demonstrate understanding of biological ideas relating to the life cycle of flowering plants (90928) Evidence Statement QUESTION
More informationImportant Developments in International Coke Markets
Important Developments in International Coke Markets Andrew Jones Resource-Net South Africa China Coke Market Congress Xuzhou, Jiangsu September 2018 Introduction to Presentation Resource-Net produces
More informationINEA HYBRIDISATION PROTOCOLS 2011
INEA HYBRIDISATION PROTOCOLS 2011 Anton Ivancic Hybridisation of taro (Colocasia esculenta) Floral characteristics of taro Colocasia esculenta is an allogamous, protogynous species, for which the main
More informationIntroduction to lnmle: An R Package for Marginally Specified Logistic-Normal Models for Longitudinal Binary Data
Introduction to lnmle: An R Package for Marginally Specified Logistic-Normal Models for Longitudinal Binary Data Bryan A. Comstock and Patrick J. Heagerty Department of Biostatistics University of Washington
More informationSUSCEPTIBILITY OF FARM SHELTER CYPRESSES TO THREE FUNGI ASSOCIATED WITH CYPRESS CANKER DISEASE
7 SUSCEPTIBILITY OF FARM SHELTER CYPRESSES TO THREE FUNGI ASSOCIATED WITH CYPRESS CANKER DISEASE R. M. BERESFORD and R. I. MULHOLLAND Plant Diseases Division, DSIR, Lincoln Research Centre, Private Bag,
More informationLecture 5: BLUP (Best Linear Unbiased Predictors) of genetic values. Bruce Walsh lecture notes Tucson Winter Institute 9-11 Jan 2013
Lecture 5: BLUP (Best Linear Unbiased Predictors) of genetic values Bruce Walsh lecture notes Tucson Winter Institute 9-11 Jan 013 1 Estimation of Var(A) and Breeding Values in General Pedigrees The classic
More informationDo you remember the 5 life stages of Cronartium ribicola, including time of year and host they are produced on?
Do you remember the 5 life stages of Cronartium ribicola, including time of year and host they are produced on? What are the environmental conditions for infection of pines by the WPBR fungus. Where are
More informationLecture 13 Family Selection. Bruce Walsh lecture notes Synbreed course version 4 July 2013
Lecture 13 Family Selection Bruce Walsh lecture notes Synbreed course version 4 July 2013 1 Selection in outbred populations If offspring are formed by randomly-mating selected parents, goal of the breeder
More informationPRINCIPLES OF MENDELIAN GENETICS APPLICABLE IN FORESTRY. by Erich Steiner 1/
PRINCIPLES OF MENDELIAN GENETICS APPLICABLE IN FORESTRY by Erich Steiner 1/ It is well known that the variation exhibited by living things has two components, one hereditary, the other environmental. One
More informationBiology. Revisiting Booklet. 6. Inheritance, Variation and Evolution. Name:
Biology 6. Inheritance, Variation and Evolution Revisiting Booklet Name: Reproduction Name the process by which body cells divide:... What kind of cells are produced this way? Name the process by which
More informationUSING LINE TESTER ANALYSIS TO DEVELOP NEW SOURCE OF CYTOPLASMIC MALE STERILE LINE IN HYBRID RICE
Plant Archives Vol. 17 No. 1, 2017 pp. 753-759 ISSN 0972-5210 USING LINE TESTER ANALYSIS TO DEVELOP NEW SOURCE OF CYTOPLASMIC MALE STERILE LINE IN HYBRID RICE M. I. Abo Youssef, M. S. Abd El Aty 1, S.
More information1 In 2006, the scientific journal, Nature, reported the discovery of a fossil from around 380 million
1 In 2006, the scientific journal, Nature, reported the discovery of a fossil from around 380 million years ago. It was given the name Tiktaalik roseae. This fossil has some features in common with fish
More informationSolutions to Problem Set 4
Question 1 Solutions to 7.014 Problem Set 4 Because you have not read much scientific literature, you decide to study the genetics of garden peas. You have two pure breeding pea strains. One that is tall
More informationChapter 4 Multi-factor Treatment Designs with Multiple Error Terms 93
Contents Preface ix Chapter 1 Introduction 1 1.1 Types of Models That Produce Data 1 1.2 Statistical Models 2 1.3 Fixed and Random Effects 4 1.4 Mixed Models 6 1.5 Typical Studies and the Modeling Issues
More informationBrief Glimpse of Agent-Based Modeling
Brief Glimpse of Agent-Based Modeling Nathaniel Osgood Using Modeling to Prepare for Changing Healthcare Need January 9, 2014 Agent-Based Models Agent-based model characteristics One or more populations
More informationUnit D: Controlling Pests and Diseases in the Orchard. Lesson 5: Identify and Control Diseases in the Orchard
Unit D: Controlling Pests and Diseases in the Orchard Lesson 5: Identify and Control Diseases in the Orchard 1 Terms Abiotic disease Bacteria Biotic diseases Cultural disease control Disease avoidance
More informationStudies on Fertility Restoration Using Newly Derived Restorers in Sunflower (Helianthus annuus L.)
Int.J.Curr.Microbiol.App.ci (218) 7(1): 2131-2135 International Journal of Current Microbiology and Applied ciences IN: 2319-776 Volume 7 Number 1 (218) Journal homepage: http://www.ijcmas.com Original
More informationBonza Botanicals Pty., Ltd., Yellow Rock, New South Wales, Australia Agent in Canada: BioFlora Inc., St. Thomas, Ontario Breeder:
(Xerochrysum bracteatum) Proposed denomination: Bondre 1051 Trade name: Dreamtime Jumbo Rose Application number: 14-8476 Application date: 2014/11/13 Applicant: Bonza Botanicals Pty., Ltd., Yellow Rock,
More informationInheritance part 1 AnswerIT
Inheritance part 1 AnswerIT 1. What is a gamete? A cell with half the number of chromosomes of the parent cell. 2. Name the male and female gametes in a) a human b) a daisy plant a) Male = sperm Female
More informationExam 1 PBG430/
1 Exam 1 PBG430/530 2014 1. You read that the genome size of maize is 2,300 Mb and that in this species 2n = 20. This means that there are 2,300 Mb of DNA in a cell that is a. n (e.g. gamete) b. 2n (e.g.
More informationGenetic and physiological approach to elucidation of Cd absorption mechanism by rice plants
Genetic and physiological approach to elucidation of Cd absorption mechanism by rice plants Satoru Ishikawa National Institute for Agro-Environmental Sciences, 3-1-3, Kannondai, Tsukuba, Ibaraki, 305-8604,
More informationINTRODUCING PLANT TISSUE CULTURE IN THE CLASSROOM CONCEPTS & HISTORICAL PERSPECTIVE
INTRODUCING PLANT TISSUE CULTURE IN THE CLASSROOM CONCEPTS & HISTORICAL PERSPECTIVE Dr. Mike Kane University of Florida Applications of Plant Tissue Culture Concepts & Terminology Micropropagation: A Historical
More informationGENETIC ANALYSES OF ROOT SYSTEM DEVELOPMENT IN THE TOMATO CROP MODEL
GENETIC ANALYSES OF ROOT SYSTEM DEVELOPMENT IN THE TOMATO CROP MODEL Kelsey Hoth 1 Dr. Maria Ivanchenko 2 Bioresourse Research 1, Department of Botany and Plant Physiology 2, Oregon State University, Corvallis,
More informationHacking Hybrid Plants and Seeds Dr. Art Trese, Ohio University. Presentation Credit: Dr. Art Trese, Ohio University
Hacking Hybrid Plants and Seeds Dr. Art Trese, Ohio University Hybrid: In biology, hybrid means something different when applied to animals versus plants A) hybrid animals progeny of two different species
More informationQuantitative characters II: heritability
Quantitative characters II: heritability The variance of a trait (x) is the average squared deviation of x from its mean: V P = (1/n)Σ(x-m x ) 2 This total phenotypic variance can be partitioned into components:
More informationSecondary Curriculum Maps
Secondary Curriculum Maps Cumberland Valley School District Soaring to Greatness, Committed to Excellence Principles of Agricultural Science - Plants The purpose of the Plant Science course is to expose
More informationUNITED STATES DEPARTMENT OF COMMERCE PATENT AND TRADEMARK OFFICE Address: Commissioner of Patents and Trademarks Washington, D.C.
UNITED STATES DEPARTMENT OF COMMERCE PATENT AND TRADEMARK OFFICE Address: Commissioner of Patents and Trademarks Washington, D.C. 20231 Control Number: 90/005,307 Filing Date: 03/30/99 Patent Under Examination:
More informationBREEDING AND GENETICS
The Journal of Cotton Science 6:97-103 (2002) http://journal.cotton.org, The Cotton Foundation 2002 97 BREEDING AND GENETICS Assessment of Day-Neutral Backcross Populations of Cotton Using AFLP Markers
More informationLogistic Regression - problem 6.14
Logistic Regression - problem 6.14 Let x 1, x 2,, x m be given values of an input variable x and let Y 1,, Y m be independent binomial random variables whose distributions depend on the corresponding values
More informationWhere we re at! The Kikuyu program at the University of Sydney
Where we re at! The Kikuyu program at the University of Sydney Selection 946 tidal mark Black Ada Swamp, Tarthra FACULTY OF AGRICULTURE & ENVIRONMENT Mr Duncan Fraser M.Agr Plant Breeding Institute Meeting;
More informationStatistical issues in QTL mapping in mice
Statistical issues in QTL mapping in mice Karl W Broman Department of Biostatistics Johns Hopkins University http://www.biostat.jhsph.edu/~kbroman Outline Overview of QTL mapping The X chromosome Mapping
More informationTHE WORK OF GREGOR MENDEL
GENETICS NOTES THE WORK OF GREGOR MENDEL Genetics-. - Austrian monk- the father of genetics- carried out his work on. Pea flowers are naturally, which means that sperm cells fertilize the egg cells in
More informationBreeding for Resistance to Basal Rot in Narcissus
Breeding for Resistance to Basal Rot in Narcissus J.H. Carder and C.L. Grant Horticulture Research International Wellesbourne Warwick, CV35 9EF U K Tel: +44(0) 1789 470382 Fax: +44(0) 1789 470552 E-mail:
More informationRFLP facilitated analysis of tiller and leaf angles in rice (Oryza sativa L.)
Euphytica 109: 79 84, 1999. 1999 Kluwer Academic Publishers. Printed in the Netherlands. 79 RFLP facilitated analysis of tiller and leaf angles in rice (Oryza sativa L.) Zhikang Li 1,2,3, Andrew H. Paterson
More informationWelcome to the Introduction to Augmented Design Webinar
Welcome to the Introduction to Augmented Design Webinar Today s Presenter: Dr. Jennifer Kling Presentation & Supplemental Files www.extension.org/pages/60430 Brought to you by: Plant Breeding and Genomics
More information