干旱区生态环境知识资源中心(Arid): Phylogenomics and continental biogeographic disjunctions: insight from the Australian starflowers (Calytrix)

Arid

DOI	10.1002/ajb2.1790
	Phylogenomics and continental biogeographic disjunctions: insight from the Australian starflowers (Calytrix)
	Nge, Francis J.; Biffin, Ed; Waycott, Michelle; Thiele, Kevin R.
通讯作者	Nge, FJ (corresponding author)，Univ Adelaide, Fac Sci, Sch Biol Sci, Adelaide, SA 5005, Australia. ; Nge, FJ (corresponding author)，State Herbarium South Australia, GPO Box 1047, Adelaide, SA 5001, Australia.
来源期刊	AMERICAN JOURNAL OF BOTANY
ISSN	0002-9122
EISSN	1537-2197
出版年	2022
卷号	109 期号:2 页码:291-308
英文摘要	Premise Continental-scale disjunctions and associated drivers are core research interests in biogeographic studies. Here, we selected a species-rich Australian plant genus (Calytrix; Myrtaceae) as a case study to investigate these patterns. Species of this endemic Australian starflower genus have a disjunct distribution across the mesic fringes of the continent and are largely absent from the arid center. Methods We used high-throughput sequencing to generate unprecedented resolution and near complete species-level nuclear and plastid phylogenies for Calytrix. BioGeoBEARS and biogeographic stochastic mapping were used to infer ancestral areas, the relative contributions of vicariance and dispersal events, and directionality of dispersal. Results Present-day disjunctions in Calytrix are explained by a combination of scenarios: (1) retreat of multiple lineages from the continental center to the more mesic fringes as Australia became progressively more arid, with subsequent extinction in the center as well as (2) origination of ancestral lineages in southwestern Australia (SWA) for species-rich clades. The SWA biodiversity hotspot is a major diversification center and the most common source area of dispersals, with multiple lineages originating in SWA and subsequently spreading to the adjacent arid Eremaean region. Conclusions Our results suggest that major extinction, as a result of cooling and drying of the Australian continent in the Eocene-Miocene, shaped the present-day biogeography of Calytrix. We hypothesize that this peripheral vicariance pattern, which is similar to the African Rand flora, may explain the disjunctions of many other Australian plant groups. Further studies with densely sampled phylogenies are required to test this hypothesis.
英文关键词	African Rand flora Australian flora biodiversity hotspots BioGeoBEARS continental disjunctions extinction historical biogeography Myrtaceae phylogenomics vicariance
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000754001700001
WOS关键词	GEOGRAPHIC RANGE EVOLUTION ; FOUNDER-EVENT SPECIATION ; HISTORICAL BIOGEOGRAPHY ; PHYLOGENETIC ANALYSIS ; NICHE CONSERVATISM ; FOSSIL EVIDENCE ; MYRTACEAE ; FLORA ; EXTINCTION ; VICARIANCE
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/376299
作者单位	[Nge, Francis J.; Biffin, Ed; Waycott, Michelle] Univ Adelaide, Fac Sci, Sch Biol Sci, Adelaide, SA 5005, Australia; [Nge, Francis J.; Biffin, Ed; Waycott, Michelle] State Herbarium South Australia, GPO Box 1047, Adelaide, SA 5001, Australia; [Thiele, Kevin R.] Univ Western Australia, Sch Biol Sci, 35 Stirling Hwy, Perth, WA 6009, Australia
推荐引用方式 GB/T 7714	Nge, Francis J.,Biffin, Ed,Waycott, Michelle,et al. Phylogenomics and continental biogeographic disjunctions: insight from the Australian starflowers (Calytrix)[J],2022,109(2):291-308.
APA	Nge, Francis J.,Biffin, Ed,Waycott, Michelle,&Thiele, Kevin R..(2022).Phylogenomics and continental biogeographic disjunctions: insight from the Australian starflowers (Calytrix).AMERICAN JOURNAL OF BOTANY,109(2),291-308.
MLA	Nge, Francis J.,et al."Phylogenomics and continental biogeographic disjunctions: insight from the Australian starflowers (Calytrix)".AMERICAN JOURNAL OF BOTANY 109.2(2022):291-308.