气候变化领域集成服务门户(CCPortal): Past and future climate effects on population structure and diversity of North Pacific surfgrasses

CCPortal

DOI	10.1111/jbi.14964
	Past and future climate effects on population structure and diversity of North Pacific surfgrasses
	Tavares, Ana I.; Assis, Jorge; Anderson, Laura; Raimondi, Pete; Coelho, Nelson Castilho; Paulino, Cristina; Ladah, Lydia; Nakaoka, Masahiro; Pearson, Gareth A.; Serrao, Ester A.
发表日期	2024
ISSN	0305-0270
EISSN	1365-2699
英文摘要	AimUnderstanding the impacts of past and future climate change on genetic diversity and structure is a current major research gap. We ask whether past range shifts explain the observed genetic diversity of surfgrass species and if future climate change projections anticipate genetic diversity losses. Our study aims to identify regions of long-term climate suitability with higher and unique seagrass genetic diversity and predict future impacts of climate change on them.LocationNortheast Pacific.Time PeriodAnalyses considered a timeframe from the Last Glacial Maximum (LGM; 20 kybp) until one Representative Concentration Pathway (RCP) scenario of future climate changes (RCP 8.5; 2100).Major Taxa StudiedTwo seagrass species belonging to the genus Phyllospadix.MethodsWe estimated population genetic diversity and structure using 11 polymorphic microsatellite markers. We predicted the distribution of the species for the present, LGM, and near future (RCP 8.5, no climate mitigation) using Species Distribution Models (SDMs).ResultsSDMs revealed southward range shifts during the LGM and potential poleward expansions in the future. Genetic diversity of Phyllospadix torreyi decreases from north to south, but in Phyllospadix scouleri the trend is variable. Phyllospadix scouleri displays signals of genome admixture at the southernmost and northernmost edges of its distribution.Main ConclusionsThe genetic patterns observed in the present reveal the influence of climate-driven range shifts in the past and suggest further consequences of climate change in the future, with potential loss of unique gene pools. This study also shows that investigating climate links to present genetic information at multiple timescales can establish a historical context for analyses of the future evolutionary history of populations.
英文关键词	climate change; genetic diversity; marine biogeography; range shifts; SDMs; seagrasses
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Physical Geography
WOS类目	Ecology ; Geography, Physical
WOS记录号	WOS:001237432500001
来源期刊	JOURNAL OF BIOGEOGRAPHY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/307375
作者单位	Universidade do Algarve; Qatar University; Nord University; University of California System; University of California Santa Cruz; Pennsylvania Commonwealth System of Higher Education (PCSHE); University of Pittsburgh; Universidade do Algarve; CICESE - Centro de Investigacion Cientifica y de Educacion Superior de Ensenada; Hokkaido University
推荐引用方式 GB/T 7714	Tavares, Ana I.,Assis, Jorge,Anderson, Laura,et al. Past and future climate effects on population structure and diversity of North Pacific surfgrasses[J],2024.
APA	Tavares, Ana I..,Assis, Jorge.,Anderson, Laura.,Raimondi, Pete.,Coelho, Nelson Castilho.,...&Serrao, Ester A..(2024).Past and future climate effects on population structure and diversity of North Pacific surfgrasses.JOURNAL OF BIOGEOGRAPHY.
MLA	Tavares, Ana I.,et al."Past and future climate effects on population structure and diversity of North Pacific surfgrasses".JOURNAL OF BIOGEOGRAPHY (2024).