干旱区生态环境知识资源中心(Arid): Contemporary genetic structure of Xantus's Hummingbird (Basilinna xantusii) in the Baja California peninsula

Arid

DOI	10.1111/ibi.13126
	Contemporary genetic structure of Xantus's Hummingbird (Basilinna xantusii) in the Baja California peninsula
	Garcia-De Leon, Francisco J.; Rodriguez-Estrella, Ricardo; Mendoza-Portillo, Veronica; Morales-Flores, Georgina; Danaee Jimenez-Guevara, Constanza
通讯作者	Garcia-De Leon, FJ
来源期刊	IBIS
ISSN	0019-1019
EISSN	1474-919X
出版年	2023
卷号	165 期号:1 页码:270-287
英文摘要	Genetic structure and phylogeographic patterns of natural populations are of great importance in assessing the conservation status of species. These population properties can be estimated using molecular markers of either mitochondrial DNA (mtDNA) or nuclear DNA (nDNA) to understand the historical, ecological and dispersal patterns that influence genetic exchange within and between populations. Basilinna xantusii is a sexually dimorphic hummingbird endemic to the Baja California Peninsula (BCP). It comprises three ancestral mitochondrial lineages linked to vicariant events, late Pleistocene climate changes and the geographical distribution of oases. This study aimed to determine and understand the current population genetic structure of this hummingbird. The genotypes of 16 microsatellite loci from 100 individuals collected across the geographical range of this species were compared with mtDNA sequences previously published. Cluster analyses identified five populations, two with almost no genetic admixture in the northern part of the BCP and three others with varying levels of admixed ancestry across the BCP. In San Jose de Magdalena, at the northernmost end of the range of Xantus's Hummingbird, 40% of individuals collected belong to one genetic cluster and the remaining 60% to another, both genetic clusters showing very little admixed ancestry. We hypothesize that, despite being in sympatry, these individuals do not interbreed, unlike the other populations where individuals showed ancestry coefficients of the other genetic groups. The philopatric behaviour of males and the long-range dispersal capacity of females probably determine the observed genetic differentiation pattern. The mito-nuclear discordance detected could be due to the molecular markers used and to female-biased dispersal. Gene flow is asymmetric in this species, being greater from north to south than vice versa, which is probably related to differences in the seasonality of precipitation across the BCP and to urbanization of the oases.
英文关键词	Basilinna xantusii landscape genetics microsatellite loci mito-nuclear discordance sex-biased dispersal
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000844110300001
WOS关键词	POPULATION-STRUCTURE ; MITOCHONDRIAL-DNA ; COMPUTER-PROGRAM ; BIASED DISPERSAL ; SOFTWARE ; BALANCE ; MICROSATELLITE ; PHYLOGEOGRAPHY ; BIOGEOGRAPHY ; PHILOPATRY
WOS类目	Ornithology
WOS研究方向	Zoology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/396897
推荐引用方式 GB/T 7714	Garcia-De Leon, Francisco J.,Rodriguez-Estrella, Ricardo,Mendoza-Portillo, Veronica,et al. Contemporary genetic structure of Xantus's Hummingbird (Basilinna xantusii) in the Baja California peninsula[J],2023,165(1):270-287.
APA	Garcia-De Leon, Francisco J.,Rodriguez-Estrella, Ricardo,Mendoza-Portillo, Veronica,Morales-Flores, Georgina,&Danaee Jimenez-Guevara, Constanza.(2023).Contemporary genetic structure of Xantus's Hummingbird (Basilinna xantusii) in the Baja California peninsula.IBIS,165(1),270-287.
MLA	Garcia-De Leon, Francisco J.,et al."Contemporary genetic structure of Xantus's Hummingbird (Basilinna xantusii) in the Baja California peninsula".IBIS 165.1(2023):270-287.