| Further molecular evidence for the Hordeum vulgare ssp. spontaneum in Tibet as ultimate progenitor of Chinese cultivated barley |
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| 作者姓名： | Feng Zongyun |
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| 作者单位： | [1]State Key Laboratory of Plant Cell ＆ Chromosome Engineering, Institute of Gengties ＆ Developmental Biology, Chinese Aeademy of Seiences, Beijing 100101, P. R. China [2]Key Laboratory of Molecular Biology ＆ Biotechnology, College of Life Science, Sichuan University, Chengdu 610065, P. R. China [3]College of Agronomy, Sichuan Agricultural University, Ya＇an 625014, P. R. China |
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| 基金项目： | Supported by the High Technology Research and Development Programme of China and the 0ustanding Young Starter Award of Chinese Academy of Sciences. |
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| 摘 要： | 106 aeeessions of Tibetan wild barley, including 50 accessions of the two-rowed wiht barley Hordeum vulgare ssp. sopntaneum （HS）, 27 accessions of the six-rowed bottle-shaped wild barley H. lagunculiforme （HL） and 29 accessions of the six-rowed wiht barley H. agriocrithon （HA） that separately represent different agrigeographical regions of Tibet, were used to study the genetic diversity and genetie differentiation using SSR markers selected from seven barley linkage groups. 229 allelic variants were identified with an average of 7.6 alleles/locus. The average of total number of alleles per locus in HA （6.4） is much higher than that in HS （3.9） and HL （3.4）. The genetie diversity and its standard deviation among the three subspecies were in the order of HS〉HL〉HA. Very significant genetic differentiation was observed among the three subspecies of wild barley. Comparisons of the results fiom this and previous studies showed a strong Oriental-Occidental differentiation of barley, and that Shannan region of Tibet might be the center of origin of the Tibetan two-rowed wild barley, thus supporting not only the hypothesis of a mono-phyletie origin of cultivated barley but also the proposition that the Tibetan two-rowed wild barley as ultimate progenitor of Chinese cultivated barley.
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| 关 键 词： | 中国 西藏 大麦 遗传多样性 基因表达 |
| 收稿时间： | 2004-09-16 |
Further molecular evidence for the Hordeum vulgare ssp. spontaneum in Tibet as ultimate progenitor of Chinese cultivated barley |
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| Feng Zongyun,Zhang Lili,Zhang Yizheng,Ling Hongqing.Further molecular evidence for the Hordeum vulgare ssp. spontaneum in Tibet as ultimate progenitor of Chinese cultivated barley[J].High Technology Letters,2005,11(3):320-324. |
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| Authors: | Feng Zongyun Zhang Lili Zhang Yizheng Ling Hongqing |
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| Abstract: | 106 accessions of Tibetan wild barley, including 50 accessions of the two-rowed wild barley Hordeum vulgare ssp. spontaneum(HS), 27 accessions of the six-rowed bottle-shaped wild barley H. lagunculiforme(HL) and 29 accessions of the six-rowed wild barley H. agriocrithon(HA) that separately represent different agrigeographical regions of Tibet, were used to study the genetic diversity and genetic differentiation using SSR markers selected from seven barley linkage groups. 229 allelic variants were identified with an average of 7.6 alleles/locus. The average of total number of alleles per locus in HA(6.4) is much higher than that in HS(3.9) and HL(3.4). The genetic diversity and its standard deviation among the three subspecies were in the order of HS>HL>HA. Very significant genetic differentiation was observed among the three subspecies of wild barley. Comparisons of the results from this and previous studies showed a strong Oriental-Occidental differentiation of barley, and that Shannan region of Tibet might be the center of origin of the Tibetan two-rowed wild barley, thus supporting not only the hypothesis of a mono-phyletic origin of cultivated barley but also the proposition that the Tibetan two-rowed wild barley as ultimate progenitor of Chinese cultivated barley. |
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| Keywords: | Hordeum genetic diversity SSR markers genetic differentiation wild barley |
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