Studies on adaptive genes in annual grasses with widedistribution area in Eurasia

对全分布区的黄颡鱼进行了遗传变异研究。虽然在叶绿体DNA变异中只识别出一个簇，但在核DNA中发现了两个远亲谱系。这两种世系被认为是经过数百万年的分离而形成的。在野生大麦Hordeum vulgare ssp中也检测到类似的遗传结构。spontaneum。研究表明，通过进化时间来划分种群对目前阐明遗传变异具有重要意义。

Genetic variation was studied in Aegilops tauschii covering its whole distribution area. Although only one cluster was recognized in chloroplast DNA variation, two distantly related lineages were found in nuclear DNA. The two lineages were supposed to establish through several million years separation. Similar genetic structure was also detected in wild barley, Hordeum vulgare ssp. spontaneum. It was shown that population division through evolutionary time is important to clarify genetic variation at present.