干旱区生态环境知识资源中心(Arid): Evolutionary analysis for Phragmites ecotypes based on full-length plastomes

Arid

DOI	10.1016/j.aquabot.2020.103349
	Evolutionary analysis for Phragmites ecotypes based on full-length plastomes
	Qiu, Tianhang; Cui, Suxia
通讯作者	Cui, SX (corresponding author), Capital Normal Univ, Coll Life Sci, 105 West Third Ring Rd,North Rd, Beijing 100048, Peoples R China.
来源期刊	AQUATIC BOTANY
ISSN	0304-3770
EISSN	1879-1522
出版年	2021
卷号	170
英文摘要	Phragmites australis, a Poaceae species distributed worldwide, has strong environmental adaptability and easily forms ecotypes. To study the process of ecotypic evolution of P. australis, we used two sympatric ecotypes with obvious phenotypic differences-Swamp Reed (SR) and Desert-dune Reed (DR) from the Hexi corridor of China as materials, and estimated divergence times derived from chloroplast genome sequencing. Their plastomes were very similar, with a sizes of 137,660 bp (SR) and 137,647 bp (DR). The results of multiple comparison methods revealed only 13 differences between them, most of which were in non-coding regions. A Poaceae chronogram was reconstructed from Bayesian inference using five fossil records. We optimized this analysis by exploring the input datasets, the fossil records, and the test model to get an estimated ecotypic divergence time of 73 Kya. Two main branches in the evolution of P. australis were outstanding: the American lineage and the European lineage. SR/DR came from the late expansion of the European lineage and separated during the Last glacial period (11.5-80 kya). The intense environmental changes in Quaternary likely caused genetic diversity accumulation, which became the driving force for the DR formation. Our estimated divergence time approach for Phragmites ecotypes will help to explore the phylogenetic status and environmental adaption process of polyploid taxa within Poaceae.
英文关键词	Phragmites Ecotype Plastome Divergence time Bayesian inference Paleoclimate Adaptive evolution
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000634947800005
WOS关键词	COMMUNIS TRIN ; GRASSES ; REED ; AUSTRALIS ; LINEAGES ; POACEAE ; BIOGEOGRAPHY ; PERFORMANCE ; HAPLOTYPE ; GENOMES
WOS类目	Plant Sciences ; Marine & Freshwater Biology
WOS研究方向	Plant Sciences ; Marine & Freshwater Biology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/349523
作者单位	[Qiu, Tianhang; Cui, Suxia] Capital Normal Univ, Coll Life Sci, 105 West Third Ring Rd,North Rd, Beijing 100048, Peoples R China
推荐引用方式 GB/T 7714	Qiu, Tianhang,Cui, Suxia. Evolutionary analysis for Phragmites ecotypes based on full-length plastomes[J],2021,170.
APA	Qiu, Tianhang,&Cui, Suxia.(2021).Evolutionary analysis for Phragmites ecotypes based on full-length plastomes.AQUATIC BOTANY,170.
MLA	Qiu, Tianhang,et al."Evolutionary analysis for Phragmites ecotypes based on full-length plastomes".AQUATIC BOTANY 170(2021).