干旱区生态环境知识资源中心(Arid): Phylogeny and biogeography of the Pleistocene Holarctic steppe and semi-desert goosefoot plant Krascheninnikovia ceratoides

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DOI	10.1016/j.flora.2019.151504
	Phylogeny and biogeography of the Pleistocene Holarctic steppe and semi-desert goosefoot plant Krascheninnikovia ceratoides
	Seidl, Anna 1; Perez-Collazos, Ernesto 2; Tremetsberger, Karin 1; Carine, Mark 3; Catalan, Pilar 2; Bernhardt, Karl-Georg 1
通讯作者	Seidl, Anna
来源期刊	FLORA
ISSN	0367-2530
EISSN	1618-0585
出版年	2020
卷号	262
英文摘要	Krascheninnikovia ceratoides (Chenopodiaceae) is a steppe and semi-desert plant with two subspecies, K. ceratoides subsp. ceratoides, which is widespread in Eurasia, and K. ceratoides subsp. lanata, which grows in western and central North America. A few disjunct populations of K. ceratoides subsp. ceratoides are found in Anatolia, Europe and North Africa to the west of its otherwise continuous Eurasian distribution. To understand the evolutionary history of this characteristic steppe and semi-desert plant, we analysed its phylogeny and biogeography. We sequenced several loci including ITS, ETS and the chloroplast intergenic spacer regions atpB-rbcL, rpl32-tra and trnL-trnF to establish a time-calibrated phylogeny and reconstruct intraspecific relationships. Furthermore, we identified the ploidy level of individuals. While diploid, tetraploid and hexaploid individuals have been reported in the literature, we were only able to find diploids and tetraploids. The diploids were found in the east of Mongolia, Kazakhstan, Kyrgyzstan, Russia and the USA. The tetraploids were located in the west of Mongolia, Kazakhstan, Tajikistan, Russia, and Europe. Populations were uniformly di- or tetraploid. Our results indicate that the species may have spread from the area of Mongolia, northern China and Middle Asia (i.e., the Altai Mountains region) in two opposite directions - on the one hand, diploids migrated to the east, to eastern Asia and North America, and on the other hand diploids and tetraploids migrated to the west, to western Asia and Europe. Fossil-calibrated gene trees were used to estimate the age of the species. Diversification within the species is probably of Pleistocene age. Our dated analysis indicates that the first split among extant lineages of the species took place in the Early Pleistocene (Gelasian). The spread of the main lineages is likely related to major phases of steppe and semi-desert expansions during glacial periods of the Pleistocene.
英文关键词	Altai Mountains Irano-Turanian element rDNA and plastid data phylogeography molecular dating Pleistocene
类型	Article
语种	英语
国家	Austria ; Spain ; England
开放获取类型	Green Published, hybrid
收录类别	SCI-E
WOS记录号	WOS:000514173000006
WOS关键词	GENETIC DIVERSITY ; HISTORICAL BIOGEOGRAPHY ; NONCODING REGIONS ; MOLECULAR PHYLOGENY ; CHENOPODIACEAE ; DISPERSAL ; EVOLUTION ; SPECIATION ; VICARIANCE ; ORIGIN
WOS类目	Plant Sciences ; Ecology
WOS研究方向	Plant Sciences ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/314509
作者单位	1.Univ Nat Resources & Life Sci, Inst Bot, Gregor Mendel Str 33, A-1180 Vienna, Austria; 2.Univ Zaragoza, Escuela Politecn Super Huesca, Ctra Cuarte Km 1, Huesca 22071, Spain; 3.Nat Hist Museum, Cromwell Rd, London SW7 5BD, England
推荐引用方式 GB/T 7714	Seidl, Anna,Perez-Collazos, Ernesto,Tremetsberger, Karin,et al. Phylogeny and biogeography of the Pleistocene Holarctic steppe and semi-desert goosefoot plant Krascheninnikovia ceratoides[J],2020,262.
APA	Seidl, Anna,Perez-Collazos, Ernesto,Tremetsberger, Karin,Carine, Mark,Catalan, Pilar,&Bernhardt, Karl-Georg.(2020).Phylogeny and biogeography of the Pleistocene Holarctic steppe and semi-desert goosefoot plant Krascheninnikovia ceratoides.FLORA,262.
MLA	Seidl, Anna,et al."Phylogeny and biogeography of the Pleistocene Holarctic steppe and semi-desert goosefoot plant Krascheninnikovia ceratoides".FLORA 262(2020).