Population genomic scans suggest novel genes underlie convergent flowering time evolution in the introduced range of Arabidopsis thaliana

被引：25

作者：

Gould, Billie A. ^{[1
,2
]}

Stinchcombe, John R. ^{[1
,3
]}

机构：

[1] Michigan State Univ, Dept Plant Biol, 612 Wilson Rd, E Lansing, MI 48823 USA

[2] Michigan State Univ, Dept Plant Biol, Plant Biol Labs, 612 Wilson Rd, E Lansing, MI 48824 USA

[3] Univ Toronto, Dept Ecol & Evolutionary Biol, Ctr Anal Genome Evolut & Funct, Toronto, ON, Canada

来源：

MOLECULAR ECOLOGY | 2017年 / 26卷 / 01期

基金：

加拿大自然科学与工程研究理事会;

关键词：

cline; convergent evolution; flowering time; genome scan; introduced species; selective sweep; QUANTITATIVE TRAIT LOCI; NATURAL VARIATION; WIDE ASSOCIATION; RAPID ADAPTATION; PHYTOCHROME-C; GENETICS; DIFFERENTIATION; RESPONSES; SELECTION; CLIMATE;

D O I：

10.1111/mec.13643

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

A long-standing question in evolutionary biology is whether the evolution of convergent phenotypes results from selection on the same heritable genetic components. Using whole-genome sequencing and genome scans, we tested whether the evolution of parallel longitudinal flowering time clines in the native and introduced ranges of Arabidopsis thaliana has a similar genetic basis. We found that common variants of large effect on flowering time in the native range do not appear to have been under recent strong selection in the introduced range. We identified a set of 38 new candidate genes that are putatively linked to the evolution of flowering time. A high degree of conditional neutrality of flowering time variants between the native and introduced range may preclude parallel evolution at the level of genes. Overall, neither gene pleiotropy nor available standing genetic variation appears to have restricted the evolution of flowering time to high-frequency variants from the native range or to known flowering time pathway genes.

引用

页码：92 / 106

页数：15

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