GEOGRAPHIC ORIGINS AND PATTERNS OF RADIATION OF MERTENSIA (BORAGINACEAE)

doi:10.3732/ajb.1300320

	GEOGRAPHIC ORIGINS AND PATTERNS OF RADIATION OF MERTENSIA (BORAGINACEAE)
	Nazaire, Mare ; Wang, Xiao-Quan; Hufford, Larry
	2014
发表期刊	AMERICAN JOURNAL OF BOTANY
ISSN	0002-9122
卷号	101 期号:1 页码:104-118
摘要	Premise of the study: Numerous molecular phylogenetic studies have used new biogeographic tools to explain species distributions. However, questions remain about origins, timing, direction of movement, and relationships between range expansion and diversification. We investigated geographic origins and temporal and spatial diversification of Mertensia, giving particular attention to divergence between Asian and North American lineages and radiation of western North American clades. Methods: Divergence time estimation and biogeographic analyses were based on phylogeny reconstruction inferred from nuclear ribosomal ITS and 12 plastid DNA sequence regions and a broad sampling of Mertensia, Boraginaceae, and core eudicots. Key results: Mertensia split from Asperugo in the late Oligocene to mid Miocene (26.83-12.22 million years ago [Ma]), followed by the first divergence in the crown group in the late Miocene (10.36-5.19 Ma). The ancestral area is inferred to have been Asia or a widespread distribution across Asia, Beringia, and circumboreal locales. Initial range expansion of North American Mertensia occurred in Beringia and the Pacific Northwest (7.70-4.22 Ma), followed by diversification of three clades (Pacific Northwest, southern Rocky Mountains, central Rocky Mountains). Conclusions: The crown divergence of extant Mertensia coincides with the onset of extreme cooling and fragmentation of a once extensive mixed mesophytic forest that was subsequently replaced by a boreal coniferous forest. Early diversification likely occurred when Beringia was connected and available for floristic exchange. The north-south orientation of the Rocky Mountain Range and Pleistocene glacial-interglacial cycles appear to have been important in the North American diversification of Mertensia
关键词	ancestral area reconstruction Beringia Boraginaceae divergence time analyses Mertensia North America species richness
学科领域	Plant Sciences
DOI	10.3732/ajb.1300320
收录类别	SCI
语种	英语
WOS关键词	HISTORICAL BIOGEOGRAPHY ; NORTHERN-HEMISPHERE ; MAXIMUM-LIKELIHOOD ; ANGIOSPERM DIVERSIFICATION ; PHYLOGENETIC ANALYSIS ; MOLECULAR EVOLUTION ; SPECIES RICHNESS ; LIFE-HISTORY ; EASTERN ASIA ; DIVERGENCE
WOS研究方向	Plant Sciences
WOS记录号	WOS:000340451100010
出版者	WILEY
文献子类	Article
出版地	HOBOKEN
EISSN	1537-2197
资助机构	NSF DDIG [DEB-1110484] ; NSF East Asia and Pacific Summer Institute Fellowship, China ; Betty W. Higinbotham Trust in Botany through Washington State University ; John W. Marr Fund through the Colorado Native Plant Society ; Margaret Williams Research Grant of the Nevada Native Plant Society ; Native Plant Society of New Mexico Research Grant ; Washington Native Plant Society Grant
作者邮箱	mnazaire@rsabg.org
引用统计	被引频次：14[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/27040
专题	系统与进化植物学国家重点实验室
作者单位	1.Washington State Univ, Sch Biol Sci, Pullman, WA 99164 USA 2.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China
推荐引用方式 GB/T 7714	Nazaire, Mare,Wang, Xiao-Quan,Hufford, Larry. GEOGRAPHIC ORIGINS AND PATTERNS OF RADIATION OF MERTENSIA (BORAGINACEAE)[J]. AMERICAN JOURNAL OF BOTANY,2014,101(1):104-118.
APA	Nazaire, Mare,Wang, Xiao-Quan,&Hufford, Larry.(2014).GEOGRAPHIC ORIGINS AND PATTERNS OF RADIATION OF MERTENSIA (BORAGINACEAE).AMERICAN JOURNAL OF BOTANY,101(1),104-118.
MLA	Nazaire, Mare,et al."GEOGRAPHIC ORIGINS AND PATTERNS OF RADIATION OF MERTENSIA (BORAGINACEAE)".AMERICAN JOURNAL OF BOTANY 101.1(2014):104-118.

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