气候变化领域集成服务门户(CCPortal): Whole genome sequencing reveals stepping-stone dispersal buffered against founder effects in a range expanding seabird

CCPortal

DOI	10.1111/mec.17282
	Whole genome sequencing reveals stepping-stone dispersal buffered against founder effects in a range expanding seabird
	Herman, Rachael W.; Clucas, Gemma; Younger, Jane; Bates, John; Robinson, Bryce; Reddy, Sushma; Stepanuk, Julia; O'Brien, Katie; Veeramah, Krishna; Lynch, Heather J.
发表日期	2024
ISSN	0962-1083
EISSN	1365-294X
起始页码	33
结束页码	6
卷号	33 期号:6
英文摘要	Many species are shifting their ranges in response to climate-driven environmental changes, particularly in high-latitude regions. However, the patterns of dispersal and colonization during range shifting events are not always clear. Understanding how populations are connected through space and time can reveal how species navigate a changing environment. Here, we present a fine-scale population genomics study of gentoo penguins (Pygoscelis papua), a presumed site-faithful colonial nesting species that has increased in population size and expanded its range south along the Western Antarctic Peninsula. Using whole genome sequencing, we analysed 129 gentoo penguin individuals across 12 colonies located at or near the southern range edge. Through a detailed examination of fine-scale population structure, admixture, and population divergence, we inferred that gentoo penguins historically dispersed rapidly in a stepping-stone pattern from the South Shetland Islands leading to the colonization of Anvers Island, and then the adjacent mainland Western Antarctica Peninsula. Recent southward expansion along the Western Antarctic Peninsula also followed a stepping-stone dispersal pattern coupled with limited post-divergence gene flow from colonies on Anvers Island. Genetic diversity appeared to be maintained across colonies during the historical dispersal process, and range-edge populations are still growing. This suggests large numbers of migrants may provide a buffer against founder effects at the beginning of colonization events to maintain genetic diversity similar to that of the source populations before migration ceases post-divergence. These results coupled with a continued increase in effective population size since approximately 500-800 years ago distinguish gentoo penguins as a robust species that is highly adaptable and resilient to changing climate.
英文关键词	colonization; founder effects; range expansion; seabirds; stepping-stone dispersal; whole genome sequencing
语种	英语
WOS研究方向	Biochemistry & Molecular Biology ; Environmental Sciences & Ecology ; Evolutionary Biology
WOS类目	Biochemistry & Molecular Biology ; Ecology ; Evolutionary Biology
WOS记录号	WOS:001154325600001
来源期刊	MOLECULAR ECOLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/302560
作者单位	State University of New York (SUNY) System; State University of New York (SUNY) Stony Brook; Cornell University; University of Tasmania; Field Museum of Natural History (Chicago); University of Minnesota System; University of Minnesota Twin Cities; University of Minnesota System; University of Minnesota Twin Cities; University of Bath; State University of New York (SUNY) System; State University of New York (SUNY) Stony Brook
推荐引用方式 GB/T 7714	Herman, Rachael W.,Clucas, Gemma,Younger, Jane,et al. Whole genome sequencing reveals stepping-stone dispersal buffered against founder effects in a range expanding seabird[J],2024,33(6).
APA	Herman, Rachael W..,Clucas, Gemma.,Younger, Jane.,Bates, John.,Robinson, Bryce.,...&Lynch, Heather J..(2024).Whole genome sequencing reveals stepping-stone dispersal buffered against founder effects in a range expanding seabird.MOLECULAR ECOLOGY,33(6).
MLA	Herman, Rachael W.,et al."Whole genome sequencing reveals stepping-stone dispersal buffered against founder effects in a range expanding seabird".MOLECULAR ECOLOGY 33.6(2024).