Phylogeographic surveys and apomictic genetic connectivity in the North Atlantic red seaweed Mastocarpus stellatus

doi:10.1016/j.ympev.2015.10.029

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	Phylogeographic surveys and apomictic genetic connectivity in the North Atlantic red seaweed Mastocarpus stellatus
	Li, Jing-Jing1,2,3 ; Hu, Zi-Min 1,2; Liu, Ruo-Yu1,3 ; Zhang, Jie1,3 ; Liu, Shao-Lun 4; Duan, De-Lin 1,2
	2016
发表期刊	MOLECULAR PHYLOGENETICS AND EVOLUTION
卷号	94 期号:2016 页码:463-472
文章类型	Article
摘要	The North Atlantic red alga Mastocaipus stellatus is characterized by two life histories (sexual-type and direct-type), which correspond to two geographically isolated breeding groups. These features enable M. stellatus to be an interesting model to investigate how environmental shift and apomictic propagation have influenced its population genetic structure, historical demography and distribution dynamic. To test these ideas, we obtained 456 specimens from 15 locations on both sides of the North Atlantic and sequenced portion of the nuclear internal transcribed spacer (ITS), mitochondria] cox2-3 region (COX) and plastid RuBisCo spacer (RLS). Median-joining networks and ML trees inferred from COX and RLS consistently revealed two gene lineages (mtDNA: C-N, C-S; cpDNA: R-N, R-S). The concatenated COX and RLS markers yielded three cytotypes: a northern C-N-R-N, a southern C-S-R-S and a mixed cytotype C-S-R-N, which enabled us to roughly separate samples into D (direct-type life-cycle) and S (sexual-type life-cycle) groups (northern CN-RN and mixed cytotype C-S-R-N = D; southern C-S-R-S = S). Pairwise F-ST analysis of the D group revealed a high level of genetic differentiation both along European coasts and across the Atlantic basin. Bayesian skyline plots (BSPs) and IMa analyses indicated that M. stellatus underwent slight demographic expansion at the late-Pleistocene, with the beginning of divergence between lineages dating to c. 0.189 Ma (95%HPD: 0.083-0.385 Ma). IMa analyses also revealed asymmetric genetic exchange among European populations and a predominant postglacial trans-Atlantic migration from Norway and Galway Bay to North America. Our study highlights the importance of phylogeographic approaches to discover the imprints of climate change, life histories and gene flow in driving population genetic connectivity and biogeographic distribution of intertidal seaweeds in the North Atlantic. (C) 2015 Elsevier Inc. All rights reserved.
关键词	Apomictic Propagation Demographic History Gene Flow Mastocarpus Stellatus Palaeoclimatic Oscillation Population Genetic Structure
DOI	10.1016/j.ympev.2015.10.029
收录类别	SCI
语种	英语
WOS记录号	WOS:000366443300001
引用统计	被引频次：7[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/86612
专题	实验海洋生物学重点实验室
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Expt Marine Biol, Qingdao 266071, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Qingdao 266071, Peoples R China 3.Univ Chinese Acad Sci, Coll Earth Sci, Beijing 100049, Peoples R China 4.Tunghai Univ, Dept Life Sci, Taichung 40704, Taiwan
第一作者单位	实验海洋生物学重点实验室
推荐引用方式 GB/T 7714	Li, Jing-Jing,Hu, Zi-Min,Liu, Ruo-Yu,et al. Phylogeographic surveys and apomictic genetic connectivity in the North Atlantic red seaweed Mastocarpus stellatus[J]. MOLECULAR PHYLOGENETICS AND EVOLUTION,2016,94(2016):463-472.
APA	Li, Jing-Jing,Hu, Zi-Min,Liu, Ruo-Yu,Zhang, Jie,Liu, Shao-Lun,&Duan, De-Lin.(2016).Phylogeographic surveys and apomictic genetic connectivity in the North Atlantic red seaweed Mastocarpus stellatus.MOLECULAR PHYLOGENETICS AND EVOLUTION,94(2016),463-472.
MLA	Li, Jing-Jing,et al."Phylogeographic surveys and apomictic genetic connectivity in the North Atlantic red seaweed Mastocarpus stellatus".MOLECULAR PHYLOGENETICS AND EVOLUTION 94.2016(2016):463-472.

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