Mitogenomes Uncover Extinct Penguin Taxa and Reveal Island Formation as a Key Driver of Speciation

	Mitogenomes Uncover Extinct Penguin Taxa and Reveal Island Formation as a Key Driver of Speciation
	Cole, TL; Ksepka, DT; Mitchell, KJ; Tennyson, AJD; Thomas, DB; Pan, HL; Zhang, GJ; Rawlence, NJ; Wood, JR; Bover, P; Bouzat, JL; Cooper, A; Fiddaman, SR; Hart, T; Miller, G; Ryan, PG; Shepherd, LD; Wilmshurst, JM; Waters, JM
	2019
发表期刊	MOLECULAR BIOLOGY AND EVOLUTION
ISSN	0737-4038
卷号	36 期号:4 页码:784-797
摘要	The emergence of islands has been linked to spectacular radiations of diverse organisms. Although penguins spend much of their lives at sea, they rely on land for nesting, and a high proportion of extant species are endemic to geologically young islands. Islands may thus have been crucial to the evolutionary diversification of penguins. We test this hypothesis using a fossil-calibrated phylogeny of mitochondrial genomes (mitogenomes) from all extant and recently extinct penguin taxa. Our temporal analysis demonstrates that numerous recent island-endemic penguin taxa diverged following the formation of their islands during the Plio-Pleistocene, including the Galapagos (Galapagos Islands), northern rockhopper (Gough Island), erect-crested (Antipodes Islands), Snares crested (Snares) and royal (Macquarie Island) penguins. Our analysis also reveals two new recently extinct island-endemic penguin taxa from New Zealand's Chatham Islands: Eudyptes warhami sp. nov. and a dwarf subspecies of the yellow-eyed penguin, Megadyptes antipodes richdalei ssp. nov. Eudyptes warhami diverged from the Antipodes Islands erect-crested penguin between 1.1 and 2.5Ma, shortly after the emergence of the Chatham Islands (similar to 3Ma). This new finding of recently evolved taxa on this young archipelago provides further evidence that the radiation of penguins over the last 5 Ma has been linked to island emergence. Mitogenomic analyses of all penguin species, and the discovery of two new extinct penguin taxa, highlight the importance of island formation in the diversification of penguins, as well as the extent to which anthropogenic extinctions have affected island-endemic taxa across the Southern Hemisphere's isolated archipelagos.
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.kiz.ac.cn/handle/152453/13056
专题	科研部门_遗传多样性基因组学研究组（张国捷）
推荐引用方式 GB/T 7714	Cole, TL,Ksepka, DT,Mitchell, KJ,et al. Mitogenomes Uncover Extinct Penguin Taxa and Reveal Island Formation as a Key Driver of Speciation[J]. MOLECULAR BIOLOGY AND EVOLUTION,2019,36(4):784-797.
APA	Cole, TL.,Ksepka, DT.,Mitchell, KJ.,Tennyson, AJD.,Thomas, DB.,...&Waters, JM.(2019).Mitogenomes Uncover Extinct Penguin Taxa and Reveal Island Formation as a Key Driver of Speciation.MOLECULAR BIOLOGY AND EVOLUTION,36(4),784-797.
MLA	Cole, TL,et al."Mitogenomes Uncover Extinct Penguin Taxa and Reveal Island Formation as a Key Driver of Speciation".MOLECULAR BIOLOGY AND EVOLUTION 36.4(2019):784-797.

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