Adaptation of Arabidopsis thaliana to the Yangtze River basin.
Adaptation of Arabidopsis thaliana to the Yangtze River basin.
复制标题
拟南芥对长江流域的适应
DOI：
10.1186/s13059-017-1378-9
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发表时间：
2017-12-28
期刊：
影响因子：
12.3
通讯作者：
Guo YL
中科院分区：
文献类型：
--
作者：
Zou YP;Hou XH;Wu Q;Chen JF;Li ZW;Han TS;Niu XM;Yang L;Xu YC;Zhang J;Zhang FM;Tan D;Tian Z;Gu H;Guo YL
生物体需要适应以跟上不断变化的环境。研究最近的范围扩张有助于我们理解生物体如何进化以克服环境限制。然而，生物如何适应气候变化是一个重要的生物学问题，在很大程度上仍然没有答案。植物拟南芥是一个很好的系统来研究这个基本问题。它的起源是在伊比利亚半岛和北非，但它已蔓延到远东，包括最东南边缘的原生栖息地，长江流域，那里的气候是非常不同的。生长在长江流域周围地区的拟南芥。我们发现，长江流域种群是一个独特的种群，在大约61,409年前发生了分化，基因流动发生在两个不同的时间点，随后在过去的几千年里种群分散到长江流域。正选择分析表明，开花时间、免疫和防御反应等生物学调节过程与适应事件相关。特别是我们发现开花时间基因SVP对A.基于遗传作图的拟南芥对长江流域的适应性研究thaliana通过促进开花的开始来适应长江流域的栖息地，这一发现揭示了一个物种如何适应气候非常不同的地区。
BackgroundOrganisms need to adapt to keep pace with a changing environment. Examining recent range expansion aids our understanding of how organisms evolve to overcome environmental constraints. However, how organisms adapt to climate changes is a crucial biological question that is still largely unanswered. The plant Arabidopsis thaliana is an excellent system to study this fundamental question. Its origin is in the Iberian Peninsula and North Africa, but it has spread to the Far East, including the most south-eastern edge of its native habitats, the Yangtze River basin, where the climate is very different.ResultsWe sequenced 118 A. thaliana strains from the region surrounding the Yangtze River basin. We found that the Yangtze River basin population is a unique population and diverged about 61,409 years ago, with gene flows occurring at two different time points, followed by a population dispersion into the Yangtze River basin in the last few thousands of years. Positive selection analyses revealed that biological regulation processes, such as flowering time, immune and defense response processes could be correlated with the adaptation event. In particular, we found that the flowering time gene SVP has contributed to A. thaliana adaptation to the Yangtze River basin based on genetic mapping.ConclusionsA. thaliana adapted to the Yangtze River basin habitat by promoting the onset of flowering, a finding that sheds light on how a species can adapt to locales with very different climates.
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影响因子：
7.7
作者：
Dubin MJ;Zhang P;Meng D;Remigereau MS;Osborne EJ;Paolo Casale F;Drewe P;Kahles A;Jean G;Vilhjálmsson B;Jagoda J;Irez S;Voronin V;Song Q;Long Q;Rätsch G;Stegle O;Clark RM;Nordborg M
通讯作者：
Nordborg M
通过适应本地来进行全球：对最近的人类适应的评论。
DOI：
10.1126/science.aaf5098
发表时间：
2016-10-07
期刊：
Science (New York, N.Y.)
影响因子：
--
作者：
Fan S;Hansen ME;Lo Y;Tishkoff SA
通讯作者：
Tishkoff SA
非par体6：具有内核的真核直系同源群。
影响因子：
14.9
作者：
Berglund AC;Sjölund E;Ostlund G;Sonnhammer EL
通讯作者：
Sonnhammer EL
影响因子：
56.9
作者：
Colautti, Robert I.;Barrett, Spencer C. H.
通讯作者：
Barrett, Spencer C. H.
DOI：
10.1126/science.1245993
发表时间：
2014-10-17
期刊：
Science (New York, N.Y.)
影响因子：
--
作者：
Carroll SP;Jørgensen PS;Kinnison MT;Bergstrom CT;Denison RF;Gluckman P;Smith TB;Strauss SY;Tabashnik BE
通讯作者：
Tabashnik BE