Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1111/j.1095-8312.2012.02016.x |
Phylogenetic analysis and phylogeography of the tetraploid rodent Tympanoctomys barrerae (Octodontidae): insights on its origin and the impact of Quaternary climate changes on population dynamics | |
Gallardo, Milton H.1; Suarez-Villota, Elkin Y.1,2; Nunez, Jose J.1; Vargas, Rodrigo A.1; Haro, Ronie1; Koehler, Nelida2 | |
通讯作者 | Gallardo, Milton H. |
来源期刊 | BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY
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ISSN | 0024-4066 |
出版年 | 2013 |
卷号 | 108期号:2页码:453-469 |
英文摘要 | The allotetraploid Tympanoctomys barrerae has a broad, patchy distribution around salt flats in western Argentina. To gain insights into its phylogenetic relationships, phylogeographical patterns, and origin, seven populations of T. barrerae and its allied taxa were studied through a 1075-bp fragment of cytochrome b and cytochrome oxidase I. Matrilineal phylogenetic relationships were explored with maximum likelihood and Bayesian approaches. The intraspecific genealogy was inferred by median-joining networks. The populational structure was assessed by molecular variance, and the demographic history through coalescence. The tree topology depicted sister-group relationship between Octomys mimax to the pair T. barreraePipanacoctomys aureus, suggesting P.?aureus belongs to the maternal lineage that gave rise to T. barrerae. High degrees of intrapopulational variation and the several instances of interpopulational polyphyly suggest range shifts and secondary contact. Consistent with the phylogenetic results, the network analysis revealed two haplotypic lineages depicting genetic admixtures unrelated to the current geographical distribution, and a deep split with the southernmost lineage of Chubut. The origin of T barrerae was estimated at approximately 2.52 Mya, whereas the divergence estimate for Chubut coincides with the end of largest Patagonian glaciation, at 1.47 Mya. Apparently, this population remained isolated during a northward Pleistocenic range shift. The historical demographic patterns of the lineages of T. barrerae fit with a contractionexpansion model coincident with Quaternary cycling events. (c) 2012 The Linnean Society of London, Biological Journal of the Linnean Society, 2012, 108, 453469. |
英文关键词 | historical demography hybrid speciation Patagonia Pleistocene |
类型 | Review |
语种 | 英语 |
国家 | Chile |
收录类别 | SCI-E |
WOS记录号 | WOS:000313784500017 |
WOS关键词 | SOUTHERN SOUTH-AMERICA ; AIRES PROVINCE ARGENTINA ; RED VIZCACHA RAT ; MITOCHONDRIAL-DNA ; CAVIOMORPH RODENTS ; DESERT RODENTS ; OCTODONTOIDEA RODENTIA ; GENETIC-STRUCTURE ; MOLECULAR CLOCKS ; COTTON GOSSYPIUM |
WOS类目 | Evolutionary Biology |
WOS研究方向 | Evolutionary Biology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/176164 |
作者单位 | 1.Univ Austral Chile, Inst Marine & Limnol Sci, Valdivia, Chile; 2.Univ Austral Chile, Inst Environm & Evolutionary Sci, Valdivia, Chile |
推荐引用方式 GB/T 7714 | Gallardo, Milton H.,Suarez-Villota, Elkin Y.,Nunez, Jose J.,et al. Phylogenetic analysis and phylogeography of the tetraploid rodent Tympanoctomys barrerae (Octodontidae): insights on its origin and the impact of Quaternary climate changes on population dynamics[J],2013,108(2):453-469. |
APA | Gallardo, Milton H.,Suarez-Villota, Elkin Y.,Nunez, Jose J.,Vargas, Rodrigo A.,Haro, Ronie,&Koehler, Nelida.(2013).Phylogenetic analysis and phylogeography of the tetraploid rodent Tympanoctomys barrerae (Octodontidae): insights on its origin and the impact of Quaternary climate changes on population dynamics.BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY,108(2),453-469. |
MLA | Gallardo, Milton H.,et al."Phylogenetic analysis and phylogeography of the tetraploid rodent Tympanoctomys barrerae (Octodontidae): insights on its origin and the impact of Quaternary climate changes on population dynamics".BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY 108.2(2013):453-469. |
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