Genomic analysis of differentiation between soil types reveals candidate genes for local adaptation in Arabidopsis lyrata.
Genomic analysis of differentiation between soil types reveals candidate genes for local adaptation in Arabidopsis lyrata.
复制标题
DOI：
10.1371/journal.pone.0003183
复制
发表时间：
2008-09-11
期刊：
影响因子：
3.7
通讯作者：
Nuzhdin SV
中科院分区：
文献类型：
--
作者：
Turner TL;von Wettberg EJ;Nuzhdin SV
蛇形土壤天生重金属含量高，钙镁比低，对大多数植物来说是一个困难的环境。大量的物种是蛇纹石特有的，而且广泛的非特有植物分类群已被证明在当地适应了这些土壤。定位蛇形和非蛇形种群之间的基因组多态性，将为蛇形适应提供候选位点。我们利用在整个基因组中有285万个探针的拟南芥平铺阵列来测量生长在花岗岩土壤和生长在蛇形土壤上的拟南芥群体之间的遗传分化。参与离子运输和其他功能的基因的显著过度代表为研究对土壤离子含量，保水和其他生态和经济重要变量的适应的分子基础提供了一个起点。其中，钙交换器7基因似乎是一种很好的候选基因，可用于适应枸杞低钙∶镁比。
Serpentine soil, which is naturally high in heavy metal content and has low calcium to magnesium ratios, comprises a difficult environment for most plants. An impressive number of species are endemic to serpentine, and a wide range of non-endemic plant taxa have been shown to be locally adapted to these soils. Locating genomic polymorphisms which are differentiated between serpentine and non-serpentine populations would provide candidate loci for serpentine adaptation. We have used the Arabidopsis thaliana tiling array, which has 2.85 million probes throughout the genome, to measure genetic differentiation between populations of Arabidopsis lyrata growing on granitic soils and those growing on serpentinic soils. The significant overrepresentation of genes involved in ion transport and other functions provides a starting point for investigating the molecular basis of adaptation to soil ion content, water retention, and other ecologically and economically important variables. One gene in particular, calcium-exchanger 7, appears to be an excellent candidate gene for adaptation to low Ca∶Mg ratio in A. lyrata.
登录
查看更多内容
影响因子：
9.8
作者：
Akey JM;Eberle MA;Rieder MJ;Carlson CS;Shriver MD;Nickerson DA;Kruglyak L
通讯作者：
Kruglyak L
影响因子：
4.5
作者：
Hancock, Angela M.;Witonsky, David B.;Gordon, Adam S.;Eshel, Gidon;Pritchard, Jonathan K.;Coop, Graham;Di Rienzo, Anna
通讯作者：
Di Rienzo, Anna
影响因子：
56.9
作者：
Hinds, DA;Stuve, LL;Cox, DR
通讯作者：
Cox, DR
影响因子：
30.8
作者：
Perry, George H.;Dominy, Nathaniel J.;Stone, Anne C.
通讯作者：
Stone, Anne C.
影响因子：
7
作者：
Ronald, J;Akey, JM;Kruglyak, L
通讯作者：
Kruglyak, L