Discovery of a high-altitude ecotype and ancient lineage of Arabidopsis thaliana from Tibet

• 来源期刊: 科学通报（英文版）
• 年，卷（期）: 2017,（24）
• 页码范围: 1628-1630
• 页数: 3页
• 语种: 英文

摘要

Arabidopsis thaliana(A,thaliana) has long been a model species for dicotyledon study,and was the first flowering plant to get its genome completed sequenced [1].Although most wild A.thaliana are collected in Europe,several studies have found a rapid A.thaliana west-east expansion from Central Asia [2].The Qinghai-Tibet Plateau (QTP) is close to Central Asia and known for its high altitude,unique environments and biodiversity [3].However,no wild-type A.thaliana had been either discovered or sequenced from QTP.Studies on the A.thaliana populations collected under 2000 m asl have shown that the adaptive variations associated with climate and altitudinal gradients [4].Hence a high-altitude A.thaliana provides a precious natural material to investigate the evolution and adaptation process.