Variability and genetic diversity for gliadins in natural populations of Hordeum chilense Roem. et Schult.
Variability and genetic diversity for gliadins in natural populations of Hordeum chilense Roem. et Schult.
复制标题
DOI：
10.1007/s10722-005-5805-5
复制
发表时间：
2006-11-01
影响因子：
2
通讯作者：
Martin, L. M.
中科院分区：
文献类型：
--
作者：
Alvarez, J. B.;Broccoli, A.;Martin, L. M.
智利大麦和舒特是野生二倍体大麦，已用于合成新的谷物，tritordeum（x Tritordeum Ascherson et Graebner）。该物种分布于智利和阿根廷，在那里可以在自然种群中找到。本研究利用种子贮藏蛋白中醇溶蛋白组分对9个野生居群的遗传多样性进行了分析。智利人。9个群体的总多样性（H-t）为0.879（ω-醇溶蛋白为0.926，β-醇溶蛋白为0.795）。结果表明，71.3%的遗传多样性存在于居群间，28.7%的遗传多样性存在于居群内。本种被认为是自花授粉，种群内的基因流动主要归因于种子传播，因为这些材料似乎分布在放牧可能是有效的分散机制的牛区。
Hordeum chilense Roem. et Schult. is wild diploid barley that has been used for the synthesis of the new cereal, tritordeum (x Tritordeum Ascherson et Graebner). This species is distributed in Chile and Argentina where it is possible to find in natural populations. In this work, the gliadin fraction of the seed storage protein have been used for evaluating the genetic diversity in nine natural populations of H. chilense. The total diversity (H-t) in the nine populations was 0.879 (ranging from 0.926 for the omega-gliadins to 0.795 for the ss-gliadins). Data showed that the 71.3% of this genetic diversity was between populations, whereas the 28.7% was within populations. This species is considered as self-pollinating, where gene flow within populations was mainly attributed to seed dispersal because of these materials appear distributed in cattle zones where the pasturing could be an efficient mechanism of dispersion.