Discovery of a high-altitude ecotype and ancient lineage of Arabidopsis thaliana from Tibet
Crabbe, M. James C.
Institute of Forest Inventory, Lhasa
Three Gorges Center for Food and Drug Control
Institute of Mathematical Statistics, Tokyo
Tibet Museum of Natural Science
University of Illinois at Urbana-Champaign
Chinese Academy of Sciences
University College London
University of Oxford
University of Bedfordshire
Shanghai Center for Bioinformation Technology
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AbstractArabidopsis thaliana (A. thaliana) has long been a model species for dicotyledon study, and was the first flowering plant to get its genome completed sequenced . Although most wild A. thaliana are collected in Europe, several studies have found a rapid A. thaliana west-east expansion from Central Asia . The Qinghai-Tibet Plateau (QTP) is close to Central Asia and known for its high altitude, unique environments and biodiversity . 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 . Hence a high-altitude A. thaliana provides a precious natural material to investigate the evolution and adaptation process. Here, we present the genome of a new ecotype of A. thaliana collected in the Gongga County, Tibet (4200 m asl) (Fig. 1a), to demonstrate its evolutionary history and adaptation to highaltitude regions.
CitationZeng L., Gu Z., Xu M., Zhao N., Zhu W., Yonezawa T., Liu T., Qiong L., Tersing T., Xu L., Zhang Y., Xu R., Sun N., Huang Y., Lei J., Zhang L., Xie F., Zhang F., Gu H., Geng Y., Hasegawa M., Yang Z., Crabbe M.J.C., Chen F., Zhong Y. (2017) 'Discovery of a high-altitude ecotype and ancient lineage of Arabidopsis thaliana from Tibet', Science Bulletin, 62, pp.1628-1630.
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