Variation and genetic diversity for gliadins in Spanish spelt wheat accessions
Variation and genetic diversity for gliadins in Spanish spelt wheat accessions
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DOI：
10.1023/b:gres.0000034575.97497.6e
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发表时间：
2004-11-01
影响因子：
2
通讯作者：
Alvarez, JB
中科院分区：
文献类型：
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作者：
Caballero, L;Martín, LM;Alvarez, JB
对403份斯卑尔脱小麦（Triticum aestivum ssp.）spelta）;发现ω-麦醇溶蛋白有61种不同的模式，γ-麦醇溶蛋白有44种，β-麦醇溶蛋白有19种，α-麦醇溶蛋白有15种。来自西班牙北部阿斯图里亚斯的50个居群的333份材料显示出较高的遗传变异水平（A = 3.89，P = 0.88，Ne = 3.35和He = 0.553），表明82.5%的遗传变异发生在居群内，只有18.5%发生在居群间。其中35个居群呈现出5个以上的材料，在这个新子集中，遗传变异值高于50个居群（A = 4.49，P = 0.91，Ne = 3.80和He = 0.595）。居群内的遗传变异占总变异的59.7%，居群间的遗传变异占40.3%，这可能与某些等位基因的固定效应有关。
Gliadin composition has been analysed in 403 accessions of spelt wheat ( Triticum aestivum ssp. spelta); 61 different patterns were found for the omega-gliadins, 44 for the gamma-gliadins, 19 for the beta-gliadins and 15 for the alpha-gliadins. A subset of 333 accessions belonging to fifty populations from Asturias, North of Spain, showed high levels of genetic variation ( A = 3.89, P = 0.88, Ne = 3.35 and He = 0.553), indicating that 82.5% of the genetic variation was within populations, and only 18.5% among populations. Thirty-five of these populations presented more of five accessions, in this new subset the values of genetic variation were higher that those of fifty populations (A = 4.49, P = 0.91, Ne = 3.80 and He = 0.595). The genetic variation within populations was 59.7% of the total, and 40.3% among populations, which could be associated to fixation effects of some alleles by genetic drift.