Rapid radiations of both kiwifruit hybrid lineages and their parents shed light on a two-layer mode of species diversification

doi:10.1111/nph.14607

CORC > 武汉植物园 > 中国科学院武汉植物园

	Rapid radiations of both kiwifruit hybrid lineages and their parents shed light on a two-layer mode of species diversification
	Guo, Yangtao 3,4; Wang, Shuaibin 3,4; Li, Xinwei 5; Li, Li 5; Liu, Chunyan 5; McCann, Honour C.3,4,6; He, Weiming 3,4; Niu, Yan 1; Chen, Min 1; Du, Liuwen 5
刊名	NEW PHYTOLOGIST
	2017-07-01
卷号	215 期号:2 页码:877-890
关键词	Actinidia backbone phylogeny hybrid speciation phylogenomics reticulate evolution
ISSN号	0028-646X
DOI	10.1111/nph.14607
英文摘要	Reticulate speciation caused by interspecific hybridization is now recognized as an important mechanism in the creation of biological diversity. However, depicting the patterns of phylogenetic networks for lineages that have undergone interspecific gene flow is challenging. Here we sequenced 25 taxa representing natural diversity in the genus Actinidia with an average mapping depth of 269 on the reference genome to reconstruct their reticulate history. We found evidence, including significant gene tree discordance, cytonuclear conflicts, and changes in genome-wide heterozygosity across taxa, collectively supporting extensive reticulation in the genus. Furthermore, at least two separate parental species pairs were involved in the repeated origin of the hybrid lineages, in some of which a further phase of syngameon was triggered. On the basis of the elucidated hybridization relationships, we obtained a highly resolved backbone phylogeny consisting of taxa exhibiting no evidence of hybrid origin. The backbone taxa have distinct demographic histories and are the product of recent rounds of rapid radiations via sorting of ancestral variation under variable climatic and ecological conditions. Our results suggest a mode for consecutive plant diversification through two layers of radiations, consisting of the rapid evolution of backbone lineages and the formation of hybrid swarms derived from these lineages.
资助项目	Science and Technology Service Network Initiative of the Chinese Academy of Sciences[KFJ-EW-STS-076] ; National Natural Science Foundation of China[31471847] ; National Natural Science Foundation of China[31572092] ; Crop Germplasm Conservation Project of China[2016NWB027]
WOS研究方向	Plant Sciences
语种	英语
出版者	WILEY
WOS记录号	WOS:000403710800035
内容类型	期刊论文
源URL	[http://202.127.146.157/handle/2RYDP1HH/1347]
专题	中国科学院武汉植物园
通讯作者	Huang, Hongwen
作者单位	1.Wuhan Benagen Tech Solut Co Ltd, Wuhan 430070, Hubei, Peoples R China 2.New Zealand Inst Plant & Food Res Ltd, Mt Albert Res Ctr, Auckland 1142, New Zealand 3.Chinese Acad Sci, Key Lab Plant Resources Conservat & Sustainable U, Guangzhou 510650, Guangdong, Peoples R China 4.Chinese Acad Sci, Guangdong Prov Key Lab Appl Bot, South China Bot Garden, Guangzhou 510650, Guangdong, Peoples R China 5.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Plant Germplasm Enhancement & Special Agr, Wuhan 430074, Hubei, Peoples R China 6.Massey Univ, New Zealand Inst Adv Study, Auckland 0745, New Zealand
推荐引用方式 GB/T 7714	Guo, Yangtao,Wang, Shuaibin,Li, Xinwei,et al. Rapid radiations of both kiwifruit hybrid lineages and their parents shed light on a two-layer mode of species diversification[J]. NEW PHYTOLOGIST,2017,215(2):877-890.
APA	Guo, Yangtao.,Wang, Shuaibin.,Li, Xinwei.,Li, Li.,Liu, Chunyan.,...&Wang, Ying.(2017).Rapid radiations of both kiwifruit hybrid lineages and their parents shed light on a two-layer mode of species diversification.NEW PHYTOLOGIST,215(2),877-890.
MLA	Guo, Yangtao,et al."Rapid radiations of both kiwifruit hybrid lineages and their parents shed light on a two-layer mode of species diversification".NEW PHYTOLOGIST 215.2(2017):877-890.