Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1186/s12862-016-0798-6 |
Multi-locus sequence data illuminate demographic drivers of Pleistocene speciation in semi-arid southern Australian birds (Cinclosoma spp.) | |
Dolman, Gaynor1,2,3; Joseph, Leo2 | |
通讯作者 | Dolman, Gaynor |
来源期刊 | BMC EVOLUTIONARY BIOLOGY
![]() |
ISSN | 1471-2148 |
出版年 | 2016 |
卷号 | 16 |
英文摘要 | Background: During the Pleistocene, shifts of species distributions and their isolation in disjunct refugia led to varied outcomes in how taxa diversified. Some species diverged, others did not. Here, we begin to address another facet of the role of the Pleistocene in generating today’s diversity. We ask which processes contributed to divergence in semi-arid southern Australian birds. We isolated 11 autosomal nuclear loci and one mitochondrial locus from a total of 29 specimens of the sister species pair, Chestnut Quail-thrush Cinclosoma castanotum and Copperback Quail-thrush C. clarum. Results: A population clustering analysis confirmed the location of the current species boundary as a well-known biogeographical barrier in southern Australia, the Eyrean Barrier. Coalescent-based analyses placed the time of species divergence to the Middle Pleistocene. Gene flow between the species since divergence has been low. The analyses suggest the effective population size of the ancestor was 54 to 178 times smaller than populations since divergence. This contrasts with recent multi-locus studies in some other Australian birds (butcherbirds, ducks) where a lack of phenotypic divergence was accompanied by larger historical population sizes. Post-divergence population size histories of C. clarum and C. castanotum were inferred using the extended Bayesian skyline model. The population size of C. clarum increased substantially during the late Pleistocene and continued to increase through the Last Glacial Maximum and Holocene. The timing of this expansion across its vast range is broadly concordant with that documented in several other Australian birds. In contrast, effective population size of C. castanotum was much more constrained and may reflect its smaller range and more restricted habitat east of the Eyrean Barrier compared with that available to C. clarum to the west. Conclusions: Our results contribute to awareness of increased population sizes, following significant contractions, as having been important in shaping diversity in Australian arid and semi-arid zones. Further, we improve knowledge of the role of Pleistocene climatic shifts in areas of the planet that were not glaciated at that time but which still experienced that period’s cyclical climatic fluctuations. |
英文关键词 | Australian birds Eyrean Barrier Semi-arid Phylogeography Coalescence Demographic history Speciation Southern Australian biogeography |
类型 | Article |
语种 | 英语 |
国家 | Australia |
收录类别 | SCI-E |
WOS记录号 | WOS:000386027500002 |
WOS关键词 | APPROXIMATE BAYESIAN COMPUTATION ; SPECIES DELIMITATION ; COMPARATIVE PHYLOGEOGRAPHY ; HAPLOTYPE RECONSTRUCTION ; SOUTHEASTERN AUSTRALIA ; GENETIC-STRUCTURE ; NORTH-AMERICA ; MULTIPLE LOCI ; DIVERGENCE ; DNA |
WOS类目 | Evolutionary Biology ; Genetics & Heredity |
WOS研究方向 | Evolutionary Biology ; Genetics & Heredity |
来源机构 | Commonwealth Scientific and Industrial Research Organisation |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/191853 |
作者单位 | 1.Western Australian Museum, Mol Systemat Unit, Locked Bag 49, Welshpool Dc, WA 6986, Australia; 2.CSIRO Natl Res Collect Australia, Australian Natl Wildlife Collect, GPO Box 1700, Canberra, ACT 2601, Australia; 3.Univ Adelaide, Sch Biol Sci, Australian Ctr Evolutionary Biol & Biodivers, Adelaide, SA 5005, Australia |
推荐引用方式 GB/T 7714 | Dolman, Gaynor,Joseph, Leo. Multi-locus sequence data illuminate demographic drivers of Pleistocene speciation in semi-arid southern Australian birds (Cinclosoma spp.)[J]. Commonwealth Scientific and Industrial Research Organisation,2016,16. |
APA | Dolman, Gaynor,&Joseph, Leo.(2016).Multi-locus sequence data illuminate demographic drivers of Pleistocene speciation in semi-arid southern Australian birds (Cinclosoma spp.).BMC EVOLUTIONARY BIOLOGY,16. |
MLA | Dolman, Gaynor,et al."Multi-locus sequence data illuminate demographic drivers of Pleistocene speciation in semi-arid southern Australian birds (Cinclosoma spp.)".BMC EVOLUTIONARY BIOLOGY 16(2016). |
条目包含的文件 | 条目无相关文件。 |
个性服务 |
推荐该条目 |
保存到收藏夹 |
导出为Endnote文件 |
谷歌学术 |
谷歌学术中相似的文章 |
[Dolman, Gaynor]的文章 |
[Joseph, Leo]的文章 |
百度学术 |
百度学术中相似的文章 |
[Dolman, Gaynor]的文章 |
[Joseph, Leo]的文章 |
必应学术 |
必应学术中相似的文章 |
[Dolman, Gaynor]的文章 |
[Joseph, Leo]的文章 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。