基于高分子谷蛋白基因的中国节节麦系统关系

o reveal the phylogenetic relationship among nine Chinese Ae. tauschii accessions, their high-molecular-weight glutenin genes were cloned, sequenced, and compared each other. The results from phylogenetic analysis suggested that at least two Ae. tauschii accessions were transmmited into Xinjiang and the middle reaches of the Yellow River in the history. One possible route is that AS60-like accession in Middle East was eastward spread to Yili River valley region by human activities or natural extension. It was gradually evolved as accession AS71 at there. This accession was also eastward spread to the middle reaches of the Yellow River and gradually evolved to AS75 or its similar accessions. In addition, another Ae. tauschii accession from the middle east was also eastward spread to Yili River valley region. It was gradually evolved to AS72 at there. This accession was also continued to eastward spread to the middle reaches of the Yellow River. The pathway of Chinese Ae. tauschii transmission may be the famous Silk Road. The original accession was gradually evolved to different groups in order to adapt to different habitats.