Genetic diversity of gliadin in Secale cereale subsp segetale from Xinjiang, China

文献类型： 外文期刊

第一作者： Che, Yonghe

作者： Che, Yonghe;Dai, Ming;Yang, Yanping;Yang, Xinming;Li, Xiuquan;Liu, Weihua;Li, Lihui

作者机构：

关键词： Genetic diversity;Gliadin patterns;Population structure;Secale cereale subsp segetale

期刊名称：GENETIC RESOURCES AND CROP EVOLUTION （ 影响因子：1.524； 五年影响因子：1.713 ）

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收录情况： SCI

摘要： In order to investigate the genetic diversity and genetic status of Secale cereale L. subsp. segetale Zhuk., a weedy rye found in China, gliadin spectra of 90 S. cereale subsp. segetale populations were analyzed using the A-PAGE. The results showed a total of 34 bands were detected in all populations with eight common bands, one common band in gamma-zone and seven common bands in omega-zone. The polymorphic bands taken on 76.5 %. All bands in alpha-, beta- zone were polymorphic. The number of bands in each population ranged from 11 to 23. Each population showed unique electrophoretic pattern. The average Shannon index to four electrophoretic zones was 1.455. The highest Shannon index was found for the population 90R17, and alpha-, beta-, gamma- and omega-zone's index detected 0.711, 1.156, 0.640 and 4.408 respectively. The lowest Shannon index was found for the population 89R55, and in alpha-, beta-, gamma- and omega-zone showed 0.000, 0.899, 0.322, and 2.709, respectively. The nearest genetic distance (0.027) was found between 90R16 and 90R35 (two Yining region's populations), and the farthest genetic distance (0.569) was observed between 90R39 and 90R24, 90R34 (all from different regions). At Nei's distance of 0.25, S. cereale subsp. segetale populations were clustered into five groups. AMOVA analysis indicated 14.0 % of the total genetic variation resided among populations, 86.0 % occurred within populations, and zero showed among regions. The abundant genetic diversity of implied elite genes that can be used in population diagnostics.

分类号： S18

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