干旱区生态环境知识资源中心(Arid): Recent range expansion in Australian hummock grasses (Triodia) inferred using genotyping-by-sequencing

Arid

DOI	10.1093/aobpla/plz017
	Recent range expansion in Australian hummock grasses (Triodia) inferred using genotyping-by-sequencing
	Anderson, Benjamin M.1,2,5; Thiele, Kevin R.1; Grierson, Pauline F.1; Krauss, Siegfried L.1,2; Nevill, Paul G.1,3; Small, Ian D.4; Zhong, Xiao 4; Barrett, Matthew D.1,2
通讯作者	Anderson, Benjamin M.
来源期刊	AOB PLANTS
ISSN	2041-2851
出版年	2019
卷号	11 期号:2
英文摘要	The Australian arid zone (AAZ) has undergone aridification and the formation of vast sandy deserts since the mid-Miocene. Studies on AAZ organisms, particularly animals, have shown patterns of mesic ancestry, persistence in rocky refugia and range expansions in arid lineages. There has been limited molecular investigation of plants in the AAZ, particularly of taxa that arrived in Australia after the onset of aridification. Here we investigate populations of the widespread AAZ grass Triodia basedowii to determine whether there is evidence for a recent range expansion, and if so, its source and direction. We also undertake a dating analysis for the species complex to which T. basedowii belongs, in order to place its diversification in relation to changes in AAZ climate and landscapes. We analyse a genomic single nucleotide polymorphism data set from 17 populations of T. basedowii in a recently developed approach for detecting the signal and likely origin of a range expansion. We also use alignments from existing and newly sequenced plastomes from across Poaceae for analysis in BEAST to construct fossil-calibrated phylogenies. Across a range of sampling parameters and outgroups, we detected a consistent signal of westward expansion for T. basedowii, originating in central or eastern Australia. Divergence time estimation indicates that Triodia began to diversify in the late Miocene (crown 7.0-8.8 million years (Ma)), and the T. basedowii complex began to radiate during the Pleistocene (crown 1.4-2.0 Ma). This evidence for range expansion in an arid-adapted plant is consistent with similar patterns in AAZ animals and likely reflects a general response to the opening of new habitat during aridification. Radiation of the T. basedowii complex through the Pleistocene has been associated with preferences for different substrates, providing an explanation why only one lineage is widespread across sandy deserts. Much of Australia is covered by an arid zone that has developed over the last 15 million years (Ma). The unique flora that inhabits that arid zone includes plants that have responded differently (expanding or contracting their ranges) to climate and landscape changes. Here we show that one widespread desert grass, Triodia basedowii, has recently (within the last 2 Ma) expanded across the arid zone. Surprisingly, we find evidence of an expansion origin in central or eastern Australia, while the bulk of the diversity in the group to which T.basedowii belongs exists in western Australia.
英文关键词	Arid zone Australia biogeography chloroplast divergence dating genotyping-by-sequencing Poaceae range expansion SNPs Triodia basedowii species complex
类型	Article
语种	英语
国家	Australia ; Sweden
开放获取类型	Green Published, Green Submitted, gold
收录类别	SCI-E
WOS记录号	WOS:000469436900012
WOS关键词	ARID ZONE ; HETERONOTIA-BINOEI ; SPECIES COMPLEX ; DIVERSIFICATION ; EVOLUTION ; CLIMATE ; HISTORY ; LIZARD ; BIOGEOGRAPHY ; PLIOCENE
WOS类目	Plant Sciences ; Ecology
WOS研究方向	Plant Sciences ; Environmental Sciences & Ecology
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/2XILL650/214216
作者单位	1.Univ Western Australia, Sch Biol Sci, Crawley, WA 6009, Australia; 2.Bot Gardens & Pk Author, Kings Pk & Bot Garden, Kings Pk, WA 6005, Australia; 3.Curtin Univ, Australian Res Council Ctr Mine Site Restorat, Bentley, WA 6102, Australia; 4.Univ Western Australia, Sch Mol Sci, Australian Res Council Ctr Excellence Plant Energ, Crawley, WA 6009, Australia; 5.Stockholm Univ, Dept Ecol Environm & Plant Sci, S-10691 Stockholm, Sweden
推荐引用方式 GB/T 7714	Anderson, Benjamin M.,Thiele, Kevin R.,Grierson, Pauline F.,et al. Recent range expansion in Australian hummock grasses (Triodia) inferred using genotyping-by-sequencing[J]. University of Western Australia,2019,11(2).
APA	Anderson, Benjamin M..,Thiele, Kevin R..,Grierson, Pauline F..,Krauss, Siegfried L..,Nevill, Paul G..,...&Barrett, Matthew D..(2019).Recent range expansion in Australian hummock grasses (Triodia) inferred using genotyping-by-sequencing.AOB PLANTS,11(2).
MLA	Anderson, Benjamin M.,et al."Recent range expansion in Australian hummock grasses (Triodia) inferred using genotyping-by-sequencing".AOB PLANTS 11.2(2019).