Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/ele.12766 |
Shifting barriers and phenotypic diversification by hybridisation | |
Sefc, Kristina M.1; Mattersdorfer, Karin1; Ziegelbecker, Angelika1; Neuhuettler, Nina1; Steiner, Oliver2; Goessler, Walter2; Koblmueller, Stephan1 | |
2017-05-01 | |
发表期刊 | ECOLOGY LETTERS
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ISSN | 1461-023X |
EISSN | 1461-0248 |
出版年 | 2017 |
卷号 | 20期号:5 |
文章类型 | Article |
语种 | 英语 |
国家 | Austria |
英文摘要 | The establishment of hybrid taxa relies on reproductive isolation from the parental forms, typically achieved by ecological differentiation. Here, we present an alternative mechanism, in which shifts in the strength and location of dispersal barriers facilitate diversification by hybridisation. Our case study concerns the highly diverse, stenotopic rock-dwelling cichlids of the African Great Lakes, many of which display geographic colour pattern variation. The littoral habitat of these fish has repeatedly been restructured in the course of ancient lake level fluctuations. Genetic data and an experimental cross support the hybrid origin of a distinct yellow-coloured variant of Tropheus moorii from ancient admixture between two allopatric, red and bluish variants. Deficient assortative mating preferences imply that reproductive isolation continues to be contingent on geographic separation. Linking paleolimnological data with the establishment of the hybrid variant, we sketch a selectively neutral diversification process governed solely by rearrangements of dispersal barriers. |
英文关键词 | Carotenoid coloration Cichlidae climate change colour pattern environmental fluctuations genetic admixture hybrid speciation Lake Tanganyika mate choice Tropheus |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000399361500009 |
WOS关键词 | HOMOPLOID HYBRID SPECIATION ; CICHLID FISH ; LAKE TANGANYIKA ; POPULATION-STRUCTURE ; LEVEL FLUCTUATIONS ; GENETIC-VARIATION ; COLOR VARIATION ; EAST-AFRICA ; DIVERSITY ; EVOLUTION |
WOS类目 | Ecology |
WOS研究方向 | Environmental Sciences & Ecology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/31219 |
专题 | 资源环境科学 |
作者单位 | 1.Graz Univ, Inst Zool, Univ Pl 2, A-8010 Graz, Austria; 2.Graz Univ, Inst Chem, Analyt Chem, Univ Pl 1, A-8010 Graz, Austria |
推荐引用方式 GB/T 7714 | Sefc, Kristina M.,Mattersdorfer, Karin,Ziegelbecker, Angelika,et al. Shifting barriers and phenotypic diversification by hybridisation[J]. ECOLOGY LETTERS,2017,20(5). |
APA | Sefc, Kristina M..,Mattersdorfer, Karin.,Ziegelbecker, Angelika.,Neuhuettler, Nina.,Steiner, Oliver.,...&Koblmueller, Stephan.(2017).Shifting barriers and phenotypic diversification by hybridisation.ECOLOGY LETTERS,20(5). |
MLA | Sefc, Kristina M.,et al."Shifting barriers and phenotypic diversification by hybridisation".ECOLOGY LETTERS 20.5(2017). |
条目包含的文件 | 条目无相关文件。 |
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