Reconstructing the evolutionary radiation of dasyurine marsupials with cytochrome b, 12S rRNA, and protamine P1 gene trees

被引：18

作者：

Krajewski C. ^{[1
,2
]}

Young J. ^{[2
]}

Buckley L. ^{[1
,4
]}

Woolley P.A. ^{[3
]}

Westerman M. ^{[2
]}

机构：

[1] Department of Zoology, Southern Illinois University, Carbondale

[2] School of Genetics and Human Variation, La Trobe University, Bundoora

[3] School of Zoology, La Trobe University, Bundoora

[4] Department of Vertebrate Zoology, National Museum of Natural History, Smithsonian Institution, Washington

来源：

Journal of Mammalian Evolution | 1997年 / 4卷 / 3期

基金：

美国国家科学基金会;

关键词：

12S rRNA; Cytochrome b; Dasyuridae; Phylogeny; Protamine P1;

D O I：

10.1023/A:1027349725642

中图分类号：

学科分类号：

摘要：

We report complete sequences of the cytochrome b, 12S rRNA, and protamine P1 genes from 18 of the 21 extant species of dasyurine marsupials (family Dasyuridae). Partial sequences are included for Pseudantechinus ningbing, but no data are available for Ps. mimulus or Phascolosorex doriae. Phylogenetic analyses of these sequences yield compatible gene trees with limited resolution. Simultaneous parsimony analysis of all three genes suggests the following: (a) a basal polytomy of eight lineages; (b) a sister-group relationship between "phascolosoricine" genera (Neophascogale and Phascolosorex, which are monophyletic) and Dasyurus + Sarcophilus; (c) monophyly of Dasyurus viverrinus, D. albopunctatus, D. geoffroii, and D. spartacus apart from other quolls and Sarcophilus; and (d) sister-pairing of D. geoffroii and D. spartacus. Previous attempts at unraveling the phylogenetic history of dasyurines have produced strikingly inconsistent results, due in part to differences in character systems examined, interpretations of character homology and independence, and analytical methods employed. We provide some evidence that the basal polytomy is the result of rapid cladogenesis and suggest that this episode of dasyurine evolution is temporally correlated with the onset of aridification following the New Guinean uplift of 15 million years ago. © 1997 Plenum Publishing Corporation.

引用

页码：217 / 236

页数：19

共 54 条

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