Department of Genetics, University College of Swansea, SA2 8PP, Singleton Park, Swansea, Wales, UK.
Theor Appl Genet. 1984 Aug;68(5):441-8. doi: 10.1007/BF00254816.
Variation at a polymorphic Aspartate aminotransferase locus was assayed in a sample of 298 accessions from the ICARDA germplasm collection of the domesticated lentil (Lens culinaris). Two alleles Aat-1 (F) and Aat-1 (S) were detected with global frequencies of 0.51 and 0.49, respectively. Fifty-nine percent of accessions were polymorphic for both alleles. The frequency of outcrossing was estimated from the observed heterozygosity to be about 1%. This is higher than direct estimates of outcrossing and implicates selection in favour of heterozygous gene combinations. Significant variation in allele frequency and in the occurrence of polymorphic accessions was observed between countries or geographic areas. Significant associations were observed between the allozymes and agronomic characters. In particular high frequency of Aat-1 (F) appeared to be associated with late flowering and maturity and low yield.
在国际干旱地区农业研究中心收集的 298 份栽培扁豆（Lens culinaris）种质资源中，检测了一个多态性天冬氨酸氨基转移酶基因座的变异情况。检测到两个等位基因 Aat-1（F）和 Aat-1（S），全球频率分别为 0.51 和 0.49。59%的材料在这两个等位基因上均表现为多态性。根据观察到的杂合度，估算出异交频率约为 1%。这高于直接估计的异交率，暗示选择有利于杂合基因组合。在国家或地理区域之间，观察到等位基因频率和多态性材料的发生存在显著差异。在等位酶和农艺性状之间观察到显著的关联。特别是 Aat-1（F）的高频率似乎与晚花和成熟以及低产量有关。
