中国科学院昆明植物研究所机构知识库
Advanced  
KIB OpenIR  > 中国科学院东亚植物多样性与生物地理学重点实验室  > 期刊论文
题名: Disentangling the effects of breakdown of self-incompatibility and transition to selfing in North American Arabidopsis lyrata
作者: Haudry, Annabelle1, 2; Zha, Hong Guang2, 3; Stift, Marc2, 4, 5; Mable, Barbara K.2
刊名: MOLECULAR ECOLOGY
关键词: balancing selection ; mating system evolution ; self-incompatibility ; S-locus
英文摘要: A breakdown of self-incompatibility (SI) followed by a shift to selfing is commonly observed in the evolution of flowering plants. Both are expected to reduce the levels of heterozygosity and genetic diversity. However, breakdown of SI should most strongly affect the region of the SI locus (S-locus) because of the relaxation of balancing selection that operates on a functional S-locus, and a potential selective sweep. In contrast, a transition to selfing should affect the whole genome. We set out to disentangle the effects of breakdown of SI and transition to selfing on the level and distribution of genetic diversity in North American populations of Arabidopsis lyrata. Specifically, we compared sequence diversity of loci linked and unlinked to the S-locus for populations ranging from complete selfing to fully outcrossing. Regardless of linkage to the S-locus, heterozygosity and genetic diversity increased with population outcrossing rate. High heterozygosity of self-compatible individuals in outcrossing populations suggests that SI is not the only factor preventing the evolution of self-fertilization in those populations. There was a strong loss of diversity in selfing populations, which was more pronounced at the S-locus. In addition, selfing populations showed an accumulation of derived mutations at the S-locus. Our results provide evidence that beyond the genome-wide consequences of the population bottleneck associated with the shift to selfing, the S-locus of A. lyrata shows a specific signal either reflecting the relaxation of balancing selection or positive selection.
出版日期: 2012-03-01
卷号: 21, 期号:5, 页码:1130-1142
DOI标识: 10.1111/j.1365-294X.2011.05435.x
语种: 英语
ISSN号: 0962-1083
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/10471
Appears in Collections:中国科学院东亚植物多样性与生物地理学重点实验室_期刊论文

Files in This Item:
File Name/ File Size Content Type Version Access License
Haudry-2012-Disentangling the ef.pdf(317KB)----开放获取--View 联系获取全文

作者单位: 1.Univ Toronto, Dept Ecol & Evolutionary Biol, Toronto, ON, Canada
2.Univ Glasgow, Inst Biodivers Anim Hlth & Comparat Med, Glasgow, Lanark, Scotland
3.Kunming Inst Bot, Kunming, Peoples R China
4.Ctr Invest Biodiversidade & Recursos Genet CIBIO, Vairao, Portugal
5.Univ Konstanz, Dept Biol, Constance, Germany

Recommended Citation:
Haudry, A; Zha, HG; Stift, M; Mable, BK.Disentangling the effects of breakdown of self-incompatibility and transition to selfing in North American Arabidopsis lyrata,MOLECULAR ECOLOGY,2012,21(5):1130-1142
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Haudry, Annabelle]'s Articles
[Zha, Hong Guang]'s Articles
[Stift, Marc]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Haudry, Annabelle]‘s Articles
[Zha, Hong Guang]‘s Articles
[Stift, Marc]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
文件名: Haudry-2012-Disentangling the ef.pdf
格式: Adobe PDF
此文件暂不支持浏览
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  中国科学院昆明植物研究所 - Feedback
Powered by CSpace