干旱区生态环境知识资源中心(Arid): Arid Australia as a source of plant diversity: the origin and climatic evolution of Ptilotus (Amaranthaceae)

Arid

DOI	10.1071/SB21012
	Arid Australia as a source of plant diversity: the origin and climatic evolution of Ptilotus (Amaranthaceae)
	Hammer, Timothy A.; Renton, Michael; Mucina, Ladislav; Thiele, Kevin R.
通讯作者	Hammer, TA (corresponding author), Univ Western Australia, Sch Biol Sci, 35 Stirling Highway, Crawley, WA 6009, Australia. ; Hammer, TA (corresponding author), Univ Adelaide, Sch Biol Sci, Adelaide, SA 5005, Australia. ; Hammer, TA (corresponding author), Bot Gardens & State Herbarium, State Herbarium South Australia, Hackney Rd, Adelaide, SA 5000, Australia.
来源期刊	AUSTRALIAN SYSTEMATIC BOTANY
ISSN	1030-1887
EISSN	1446-5701
出版年	2021
英文摘要	In the present study, we tested the chronological and geographic origins of the mostly arid Australian Ptilotus (Amaranthaceae) and its close relatives (i.e. the 'aervoids') by reconstructing a dated phylogeny with near-comprehensive sampling for Ptilotus and estimating ancestral geographic ranges. We investigated climatic niche evolution within Ptilotus and identified likely climatic origins and subsequent niche shifts by reconstructing ancestral states of climatic variables on the phylogeny, which was visualised using a phyloecospace approach. Geospatial analyses were employed to identify probable diversification hotspots within Australia. We inferred that the aervoids originated in Oligocene Africa-Asia and that Ptilotus arrived in northern Australia by dispersal in the Early Miocene. Subsequent diversification of Ptilotus was rapid, giving rise to all major clades in the western Eremaean by the time of an aridification pulse in the Middle Miocene. Climatic niche shifts from the arid Eremaean into monsoonal northern and temperate southern Australia are apparent for multiple independent species groups. Our analyses support the hypothesis that a pre-adaptation to aridity and early arrival in an aridifying Australia were integral to the success of Ptilotus, and that the Eremaean has been a source of biodiversity in the genus and for independent radiations into neighbouring climatic zones.
英文关键词	Amaranthaceae Australia ecology molecular dating phylogeography
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000695602200001
WOS关键词	MOLECULAR PHYLOGENY ; R PACKAGE ; HISTORICAL BIOGEOGRAPHY ; RADIATION ; DYNAMICS ; NICHE ; DIVERSIFICATION ; SPECIATION ; SOFTWARE ; MODEL
WOS类目	Plant Sciences ; Evolutionary Biology
WOS研究方向	Plant Sciences ; Evolutionary Biology
来源机构	University of Western Australia
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/362682
作者单位	[Hammer, Timothy A.; Renton, Michael; Thiele, Kevin R.] Univ Western Australia, Sch Biol Sci, 35 Stirling Highway, Crawley, WA 6009, Australia; [Hammer, Timothy A.] Univ Adelaide, Sch Biol Sci, Adelaide, SA 5005, Australia; [Hammer, Timothy A.] Bot Gardens & State Herbarium, State Herbarium South Australia, Hackney Rd, Adelaide, SA 5000, Australia; [Renton, Michael] Univ Western Australia, Sch Agr & Environm, 35 Stirling Highway, Crawley, WA 6009, Australia; [Mucina, Ladislav] Murdoch Univ, Harry Butler Inst, 90 South St, Murdoch, WA 6150, Australia; [Mucina, Ladislav] Stellenbosch Univ, Dept Geog & Environm Studies, Private Bag X1, ZA-7602 Matieland, South Africa
推荐引用方式 GB/T 7714	Hammer, Timothy A.,Renton, Michael,Mucina, Ladislav,et al. Arid Australia as a source of plant diversity: the origin and climatic evolution of Ptilotus (Amaranthaceae)[J]. University of Western Australia,2021.
APA	Hammer, Timothy A.,Renton, Michael,Mucina, Ladislav,&Thiele, Kevin R..(2021).Arid Australia as a source of plant diversity: the origin and climatic evolution of Ptilotus (Amaranthaceae).AUSTRALIAN SYSTEMATIC BOTANY.
MLA	Hammer, Timothy A.,et al."Arid Australia as a source of plant diversity: the origin and climatic evolution of Ptilotus (Amaranthaceae)".AUSTRALIAN SYSTEMATIC BOTANY (2021).