干旱区生态环境知识资源中心(Arid): Ancient landscapes of the Namib Desert harbor high levels of genetic variability and deeply divergent lineages for Collembola

Arid

DOI	10.1002/ece3.5103
	Ancient landscapes of the Namib Desert harbor high levels of genetic variability and deeply divergent lineages for Collembola
	Collins, Gemma E.1; Hogg, Ian D.1,2,3; Baxter, Janine R.3; Maggs-Koelling, Gillian 4; Cowan, Don A.3
通讯作者	Hogg, Ian D.
来源期刊	ECOLOGY AND EVOLUTION
ISSN	2045-7758
出版年	2019
卷号	9 期号:8 页码:4969-4979
英文摘要	AimTo assess spatial patterns of genetic and species-level diversity for Namib Desert Collembola using mitochondrial DNA cytochrome c oxidase subunit I (COI) gene sequences. LocationNamib Desert gravel plains. TaxonCollembola (springtails). MethodsA total of 77 soil samples were collected along NE-SW (60km) and E-W (160km) transects from within a 4,000km(2) area of the Namib Desert gravel plains. We extracted 434 springtails from the 37 samples which contained Collembola and sequenced them at the COI gene locus. In the absence of specific taxonomic keys and previous genetic data for these taxa, we used Generalized Mixed Yule Coalescent (GMYC) analyses to provide putative species-level designations. ResultsWe obtained 341 successful COI sequences, 175 of which were unique haplotypes. GMYC analyses identified 30 putative species, with up to 28% sequence divergence (uncorrected p-distance). The distribution of genetic variants was disjunct, with 97% of haplotypes and 70% of GMYC species found only at single sites. Main conclusionsDispersal events, although rare, may be facilitated by environmental events such as prevailing onshore winds or occasional flow of rainwater to the coast. We conclude that the high genetic diversity we observed is the result of ancient springtail lineages, patchy distribution of suitable habitats, and limited dispersal (gene flow) among habitable locations.
英文关键词	biogeography Collembola genetic diversity Namib Desert
类型	Article
语种	英语
国家	New Zealand ; Canada ; South Africa ; Namibia
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000466104200052
WOS关键词	MICROBIAL COMMUNITY ; SPECIES DELIMITATION ; VICTORIA LAND ; DNA TAXONOMY ; DIVERSITY ; EVOLUTION ; GRADIENT ; ECOLOGY ; MODELS ; FAUNA
WOS类目	Ecology ; Evolutionary Biology
WOS研究方向	Environmental Sciences & Ecology ; Evolutionary Biology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215257
作者单位	1.Univ Waikato, Sch Sci, Hamilton, New Zealand; 2.Polar Knowledge Canada, Canadian High Arctic Res Stn, Cambridge Bay, NU, Canada; 3.Univ Pretoria, Ctr Microbial Ecol & Genom, Pretoria, South Africa; 4.Gobabeb Res & Training Ctr, Walvis Bay, Namibia
推荐引用方式 GB/T 7714	Collins, Gemma E.,Hogg, Ian D.,Baxter, Janine R.,et al. Ancient landscapes of the Namib Desert harbor high levels of genetic variability and deeply divergent lineages for Collembola[J],2019,9(8):4969-4979.
APA	Collins, Gemma E.,Hogg, Ian D.,Baxter, Janine R.,Maggs-Koelling, Gillian,&Cowan, Don A..(2019).Ancient landscapes of the Namib Desert harbor high levels of genetic variability and deeply divergent lineages for Collembola.ECOLOGY AND EVOLUTION,9(8),4969-4979.
MLA	Collins, Gemma E.,et al."Ancient landscapes of the Namib Desert harbor high levels of genetic variability and deeply divergent lineages for Collembola".ECOLOGY AND EVOLUTION 9.8(2019):4969-4979.