Biogeographical divides delineated by the three-step landforms of China and the East China Sea: Insights from the phylogeography of Kerria japonica

doi:10.1111/jbi.14002

KIB OpenIR

	Biogeographical divides delineated by the three-step landforms of China and the East China Sea: Insights from the phylogeography of Kerria japonica
	Luo,Dong; Xu,Bo ; Li,Zhi-Min ; Sun,Hang
	2021
发表期刊	JOURNAL OF BIOGEOGRAPHY
ISSN	0305-0270
卷号	48 期号:2 页码:372-385
摘要	Aim East Asia exhibits complex geomorphological and climatic characteristics. The aim of this study was to test whether the so-called three-step landforms of China, together with the East China Sea (ECS), have acted to shape specific phylogeographical patterns and affected the biogeographical history of the species belonging to the East Asian Flora.Location China and Japan.Taxon Kerria japonica (L.) DC.Methods Three chloroplast DNA regions and 15 nuclear microsatellite (nSSR) loci were sequenced and genotyped in 576/450 individuals of K. japonica. Phylogeographical analyses were performed to assess the genetic structure, historical gene flow and demographical history of these individuals, and climatic factors were examined to determine their effects on phylogeographical breaks. Furthermore, time-calibrated phylogenetic trees and ancestral range reconstruction were used to infer the biogeographical history of K. japonica. Potential habitats at present and during the last glacial maximum (LGM) were identified using ecological niche modelling.Results Distinct phylogeographical breaks were found across the ECS and along the boundary of the three-step landforms of China. Low historical gene flow and significant climatic differences were detected in each pair of adjacent regions. The results of molecular dating and ancestral range reconstruction indicated that K. japonica originated in North America during the mid-Miocene (14.76 Ma), and intra-specific diversification began in the late Miocene (7.78 Ma). Compared to the relatively stable distribution range of Chinese populations, Japanese populations experienced range expansion after the LGM in response to Quaternary climate change.Main conclusions Kerria japonica has a complex biogeographical history, with a mid-Miocene origin in North America and subsequent migration into East Asia via the Bering land bridge. The onset of intra-specific diversification was probably associated with Asian monsoon intensifications, while exposure to the ECS floor facilitated the formation of the Japanese lineage in the late Miocene. The spatiotemporal population differentiation on the Chinese mainland demonstrates the significant role of biogeographical divides delineated by the three-step landforms of China and provides clues to understand the floristic regionalization and evolutionary history of plant diversity in East Asia, especially with respect to the Hengduan Mountains, Central China and East China.
关键词	biogeographical divides East Asia East China Sea floristic regionalization Kerria japonica three‐ step landforms of China TIBETAN PLATEAU MOLECULAR PHYLOGEOGRAPHY QUATERNARY CLIMATE ASIA DNA CHLOROPLAST ENDEMISM HISTORY PLANTS DIVERSIFICATION
DOI	10.1111/jbi.14002
WOS记录号	WOS:000583189300001
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/73299
专题	中国科学院昆明植物研究所
作者单位	1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Div & Biogeog East Asia, 132 Lanhei Rd, Kunming 650201, Yunnan, Peoples R China 2.Southwest Forestry Univ, Coll Forestry, Kunming, Yunnan, Peoples R China 3.Yunnan Normal Univ, Sch Life Sci, Kunming, Yunnan, Peoples R China
推荐引用方式 GB/T 7714	Luo,Dong,Xu,Bo,Li,Zhi-Min,et al. Biogeographical divides delineated by the three-step landforms of China and the East China Sea: Insights from the phylogeography of Kerria japonica[J]. JOURNAL OF BIOGEOGRAPHY,2021,48(2):372-385.
APA	Luo,Dong,Xu,Bo,Li,Zhi-Min,&Sun,Hang.(2021).Biogeographical divides delineated by the three-step landforms of China and the East China Sea: Insights from the phylogeography of Kerria japonica.JOURNAL OF BIOGEOGRAPHY,48(2),372-385.
MLA	Luo,Dong,et al."Biogeographical divides delineated by the three-step landforms of China and the East China Sea: Insights from the phylogeography of Kerria japonica".JOURNAL OF BIOGEOGRAPHY 48.2(2021):372-385.