Pan-European study of genotypes and phenotypes in the Arabidopsis relative Cardamine hirsuta reveals how adaptation, demography, and development shape diversity patterns.
Pan-European study of genotypes and phenotypes in the Arabidopsis relative Cardamine hirsuta reveals how adaptation, demography, and development shape diversity patterns.
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DOI：
10.1371/journal.pbio.3002191
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发表时间：
2023-07
期刊：
影响因子：
9.8
通讯作者：
中科院分区：
文献类型：
--
作者：
我们研究了拟南芥相对碎米荠的天然DNA多态性和相关的表型。我们观察到几个祖先群体之间的强烈遗传分化和伊比利亚残株在欧洲C。hirsuta相比，拟南芥。我们发现营养和生殖发育之间的同步性，以及异时性途径在形成C。多毛类自然变异一个单一的，快速循环的ChFRIGIDA等位基因进化自适应允许范围扩大从冰川避难所，不像拟南芥，其中涉及多个FRIGIDA单倍型。亚速尔群岛是拟南芥属植物稀少的地方，也是C.多毛类多样性我们确定了一个数量性状位点（QTL）的异时SPL9转录因子作为亚速尔群岛形态型的决定因素。该QTL显示了正选择的证据，其分布反映了广泛影响亚速尔群岛植物群的气候梯度。总的来说，我们建立了一个框架，探讨如何适应，人口和发展的相互作用形成的2个相关的植物物种的多样性模式。本研究探讨了如何适应，人口和发展的相互作用形状的多样性模式碎米荠，拟南芥的近亲，并表明，在异时性SPL9基因的QTL的基础上，在亚速尔群岛发现一个独特的形态。
We study natural DNA polymorphisms and associated phenotypes in the Arabidopsis relative Cardamine hirsuta. We observed strong genetic differentiation among several ancestry groups and broader distribution of Iberian relict strains in European C. hirsuta compared to Arabidopsis. We found synchronization between vegetative and reproductive development and a pervasive role for heterochronic pathways in shaping C. hirsuta natural variation. A single, fast-cycling ChFRIGIDA allele evolved adaptively allowing range expansion from glacial refugia, unlike Arabidopsis where multiple FRIGIDA haplotypes were involved. The Azores islands, where Arabidopsis is scarce, are a hotspot for C. hirsuta diversity. We identified a quantitative trait locus (QTL) in the heterochronic SPL9 transcription factor as a determinant of an Azorean morphotype. This QTL shows evidence for positive selection, and its distribution mirrors a climate gradient that broadly shaped the Azorean flora. Overall, we establish a framework to explore how the interplay of adaptation, demography, and development shaped diversity patterns of 2 related plant species. This study explores how the interplay of adaptation, demography and development shaped diversity patterns in Cardamine hirsuta, a close relative of Arabidopsis, and shows that a QTL in the heterochronic SPL9 gene underlies a distinctive morphotype discovered in the Azores islands.
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DOI：
10.1098/rstb.2000.0716
发表时间：
2000-11-29
影响因子：
6.3
作者：
Barton, NH
通讯作者：
Barton, NH
影响因子：
9.2
作者：
Chang CC;Chow CC;Tellier LC;Vattikuti S;Purcell SM;Lee JJ
通讯作者：
Lee JJ
影响因子：
56.9
作者：
Alonso, JM;Stepanova, AN;Ecker, JR
通讯作者：
Ecker, JR
影响因子：
14.9
作者：
Bouché F;Lobet G;Tocquin P;Périlleux C
通讯作者：
Périlleux C
影响因子：
4.5
作者：
Brachi B;Faure N;Horton M;Flahauw E;Vazquez A;Nordborg M;Bergelson J;Cuguen J;Roux F
通讯作者：
Roux F