气候变化领域集成服务门户(CCPortal): Museum genomics reveals the rapid decline and extinction of Australian rodents since European settlement

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DOI	10.1073/pnas.2021390118
	Museum genomics reveals the rapid decline and extinction of Australian rodents since European settlement
	Roycroft E.; MacDonald A.J.; Moritz C.; Moussalli A.; Miguez R.P.; Rowe K.C.
发表日期	2021
ISSN	0027-8424
卷号	118 期号:27
英文摘要	Australia has the highest historically recorded rate of mammalian extinction in the world, with 34 terrestrial species declared extinct since European colonization in 1788. Among Australian mammals, rodents have been the most severely affected by these recent extinctions; however, given a sparse historical record, the scale and timing of their decline remain unresolved. Using museum specimens up to 184 y old, we generate genomic-scale data from across the entire assemblage of Australian hydromyine rodents (i.e., eight extinct species and their 42 living relatives). We reconstruct a phylogenomic tree for these species spanning ∼5.2 million years, revealing a cumulative total of 10 million years (>10%) of unique evolutionary history lost to extinction within the past ∼150 y. We find no evidence for reduced genetic diversity in extinct species just prior to or during decline, indicating that their extinction was extremely rapid. This suggests that populations of extinct Australian rodents were large prior to European colonization, and that genetic diversity does not necessarily protect species from catastrophic extinction. In addition, comparative analyses suggest that body size and biome interact to predict extinction and decline, with larger species more likely to go extinct. Finally, we taxonomically resurrect a species from extinction, Gould’s mouse (Pseudomys gouldii Waterhouse, 1839), which survives as an island population in Shark Bay, Western Australia (currently classified as Pseudomys fieldi Waite, 1896). With unprecedented sampling across a radiation of extinct and living species, we unlock a previously inaccessible historical perspective on extinction in Australia. Our results highlight the capacity of collections-based research to inform conservation and management of persisting species. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Biodiversity; Conservation; Exon capture; Phylogenomics; Phylogeny
语种	英语
scopus关键词	animal experiment; animal tissue; article; biodiversity; biome; body size; extinct species; genetic variability; information center; male; mouse; nonhuman; phylogenomics; phylogeny; relative; rodent; shark; Western Australia
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/238695
作者单位	School of BioSciences, The University of Melbourne, Parkville, VIC 3010, Australia; Sciences Department, Museums Victoria, Melbourne, VIC 3001, Australia; Division of Ecology and Evolution, Research School of Biology, The Australian National University, Acton, ACT 2601, Australia; The John Curtin School of Medical Research, The Australian National University, Acton, ACT 2601, Australia; Department of Life Sciences, Natural History Museum, London, SW7 5BD, United Kingdom
推荐引用方式 GB/T 7714	Roycroft E.,MacDonald A.J.,Moritz C.,et al. Museum genomics reveals the rapid decline and extinction of Australian rodents since European settlement[J],2021,118(27).
APA	Roycroft E.,MacDonald A.J.,Moritz C.,Moussalli A.,Miguez R.P.,&Rowe K.C..(2021).Museum genomics reveals the rapid decline and extinction of Australian rodents since European settlement.Proceedings of the National Academy of Sciences of the United States of America,118(27).
MLA	Roycroft E.,et al."Museum genomics reveals the rapid decline and extinction of Australian rodents since European settlement".Proceedings of the National Academy of Sciences of the United States of America 118.27(2021).