Disentangling the effects of breakdown of self-incompatibility and transition to selfing in North American Arabidopsis lyrata
文献类型：期刊论文
| 作者 | Haudry, Annabelle1,2; Zha, Hong Guang2,3; Stift, Marc2,4,5; Mable, Barbara K.2 |
| 刊名 | MOLECULAR ECOLOGY
 |
| 出版日期 | 2012-03-01 |
| 卷号 | 21期号:5页码:1130-1142 |
| 关键词 | balancing selection mating system evolution self-incompatibility S-locus |
| ISSN号 | 0962-1083 |
| 通讯作者 | Haudry, A (reprint author), Univ Toronto, Dept Ecol & Evolutionary Biol, Toronto, ON, Canada, annabelle.haudry@gmail.com |
| 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. |
| 学科主题 | Biochemistry & Molecular Biology; Ecology; Evolutionary Biology |
| 类目[WOS] | Biochemistry & Molecular Biology ; Ecology ; Evolutionary Biology |
| 研究领域[WOS] | Biochemistry & Molecular Biology ; Environmental Sciences & Ecology ; Evolutionary Biology |
| 关键词[WOS] | INBREEDING DEPRESSION ; S-LOCUS ; LINKAGE DISEQUILIBRIUM ; MOLECULAR EVOLUTION ; FINITE POPULATIONS ; LEAVENWORTHIA-ALABAMICA ; REPRODUCTIVE ASSURANCE ; NUCLEOTIDE DIVERSITY ; NATURAL-POPULATIONS ; DEMOGRAPHIC HISTORY |
| 收录类别 | SCI |
| 资助信息 | Biotechnology and Biological Sciences Research Council[ISIS 2078]; BBSRC/European Research Association Plant Genomics[BB/L024734/1]; Natural Environment Research Council[NE/D013461/1]; Portuguese Fundacao de Ciencia e a Tecnologia; European Union[SFRH/BPD/64400/2009] |
| 语种 | 英语 |
| WOS记录号 | WOS:000300699500010 |
| 公开日期 | 2012-06-07 |
| 源URL | [http://ir.kib.ac.cn/handle/151853/10471]  |
| 专题 | 昆明植物研究所_中国科学院东亚植物多样性与生物地理学重点实验室 |
| 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 |
| 推荐引用方式 GB/T 7714 | Haudry, Annabelle,Zha, Hong Guang,Stift, Marc,et al. Disentangling the effects of breakdown of self-incompatibility and transition to selfing in North American Arabidopsis lyrata[J]. MOLECULAR ECOLOGY,2012,21(5):1130-1142. |
| APA | Haudry, Annabelle,Zha, Hong Guang,Stift, Marc,&Mable, Barbara K..(2012).Disentangling the effects of breakdown of self-incompatibility and transition to selfing in North American Arabidopsis lyrata.MOLECULAR ECOLOGY,21(5),1130-1142. |
| MLA | Haudry, Annabelle,et al."Disentangling the effects of breakdown of self-incompatibility and transition to selfing in North American Arabidopsis lyrata".MOLECULAR ECOLOGY 21.5(2012):1130-1142. |
入库方式： OAI收割
来源：昆明植物研究所
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