(Calligonum ebi2nuricum ),

Transcription

1 2009, 29 (6) : B u lletin of B otan ica l Resea rch (Calligonum ebi2nuricum ) 1, , 2 (1., ) (2., ) (Calligonum ebi2nuricum ), :,; ( p < 0. 01) ;( r = , p < 0. 01) : ( ),,, ;;; : Q : A: (2009) Var ia tion in Fru it Character istics of the Ch inese Endem ic Spec ies C a lligonum eb i2nu ricum in Popula tion KANG Xiao2Shan 1, 2 PAN Bo2Rong 13 ZHANG Yong2Zhi 1 DUAN Shi2M in 1 SH IW ei 1, 2 (1. Turpan Eremophytes Botanical Garden, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Turpan ) (2. Graduate University of Chinese Academy Sciences, Beijing ) Abstract In this paper, the fruitsmorphological characteristics of 12 individual p lants in the same population of Ca lligonum ebi2nu ricum s, which are grow ing in J inghe of Xinjiang Province, are studied by num erical analysis. The results show that the morphological variation of 11 morphological traits, including length of beak, length of fruit, w idth of fruit, shape of fruit, length of achene, w idth of achene, shape of achene, length of bristle, the length of bristle of head, the distance between ribs and the distance between bristles, existed both w ithin p lant and amang p lants, and the degree of variation within p lantwere lesser than amang p lants. There is obvious corre2 lation in indices of the fruits and the achene sizes( p < 0. 01). However, the shape of achene and the distance between ribs are negatively correlated ( r = , p < 0. 01), which means width of achene increases with the distance between ribs. It was concluded that the shape of the fruits and achenes could be used for species classification; and those characteristics w ith greater p lasticity were less useful in distinguishing the sibling species w ith sympatric distribution. This result can be referred to classify of other species in Ca lligonum. Key words Ca lligonum ebi2nu ricum ; fruit morphology; intraspecific variations; p lasticity : ; 086D :(1982 ),,, 3 : E2mail: brpan@m s. xjb. ac. cn :

2 ( Polygonaceae)(Calligonum L. ), [ 1 ] 35, [ 2, 3 ] 23,, 6 [ 2 ], ( Sect) [ 2, 3 ] : ( Sect. Calliphysa ( Fisch. et Mey. ) Endl. Gen ), ( Sect. Pterococcus ( Pall. ) Endl. Gen),( Sect. Calligonum ),( Sect. Me2 dusae Sosk. et A lexandr),, Ivanova Soskov 1969 [ 4 ], 1979,,,, [ 1, 2 ] [ 5 ],,, [ 1, 6 ],,, [ 7, 8 ],, [ 9 ] [ ],, ; [ 13 ], ; () [ 9 ],,,, 4,, [ 14 ],,,,,,, ( , ),,, (XJB I)( TURP) [ 15 ],, m;,2 m,, [ 16 ], 40 m,() 2. 2,Garm in GPS72,, 30,, LYMPUS SZX7 (=/) (= /) 2. 3 CV (CV =/) [17 ] Pearson EXCEL2007 SPSS ,

3 6 :(Calligonum ebi2nuricum ) %, %, % % %,, 2 31, 2, 1 3 ; 4, 1211 ( 1) %, 61766%,, % %,,, [ 18 ] 11 ( % ) (181851% ) ( % ) ( % ) ( % ) ( % ) ( % ) ( % ) ( % ) (101198% ),( % ), 1 Table 1 Variation in fruit characteristics of within p lants of C. ebi2nuricum Index Variation coefficient( % ) 95% Means of 95% confidence internal Length of beak Length of fruit W idth of fruit Shape of fruit Length of achene W idth of achene ; 2. ; 3. ; 4. ; 5. ; 6. ; 7. ; 8. ; 9. ; 10. ; 11. Fig. 1 Variation in fruit characteristics of within each p lants of the twelve p lants of C. ebi2nuricum 1. Length of beak; 2. Length of fruit; 3. W idth of fruit; 4. Shape of fruit; 5. Length of achene; 6. W idth of achene; 7. Shape of achene; 8. Length of bristle; 9. The length of bristle of head; 10. The distance between ribs; 11. The dis2 tance between bristles Shape of achene Length of bristle The length of bristle of head The distance between ribs The distance between bristles ( 2)

4 750 29, 11,,, %,6. 758% 11> >>>>> >>>>, 2 Table 2 Anova of variation in fruit characteristics variance analysis of among p lants of C. ebi2nuricum Index Length of beak Length of fruit W idth of fruit Shape of fruit Length of achene W idth of achene Shape of achene Length of bristle The length of bristle of head The distance between ribs The distance between bristles Mean Variation range Variability of between individuals( % ) F F value : 3 3 p < Note: 3 3 Variability is significant at the level ,, ( p < 0. 01),,,,,;,,;,, ;,,,,, ; ( r = > 0. 01),,,, p 4,,,, [ 19, 20 ] : 11,,

5 6 :(Calligonum ebi2nuricum ) 751,,,,,,,,,,, 3 Table 3 Correlation coefficients among the fruit characteristics indices of C. ebi2nuricum 1 Index 1 2 Index 2 3 Index 3 4 Index 4 5 Index 5 6 Index 6 7 Index7 8 Index8 9 Index9 10 Index Index 11 1 Index Index Index Index Index Index Index Index Index Index Idex 11 : 3 3 ( p < 0. 01), 3 ( p < 0. 05), 1. ;2. ;3. ; 4. ;5. ;6. ;7. ;8. ;9. ;10. ;11. Note: 1. Length of beak; 2. Length of fruit; 3. W idth of fruit; 4. Shape of fruit; 5. Length of achene; 6. W idth of achene; 7. Shape of achene; 8. Length of bristle; 9. The length of bristle of head; 10. The distance between ribs; 11. The distance between bristles,,, [ 14 ], [ 18 ] :,;, ; ;( r = , p < 0. 01),,,,,,,,,, [ 14 ],,,,,,

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