干旱区生态环境知识资源中心(Arid): Genetic studies of various Prosopis species (Leguminosae, Section Algarobia) co-occurring in oases of the Atacama Desert (northern Chile)

Arid

DOI	10.1002/ece3.7212
	Genetic studies of various Prosopis species (Leguminosae, Section Algarobia) co-occurring in oases of the Atacama Desert (northern Chile)
	Bessega, Cecilia; Pometti, Carolina; Fortunato, Renee; Greene, Francisca; Santoro, Calogero M.; McRostie, Virginia
通讯作者	Bessega, C (corresponding author), Univ Buenos Aires, Dept Ecol Genet & Evoluc EGE, Genet Especies Lenosas GEEL, Fac Ciencias Exactas & Nat, Buenos Aires, DF, Argentina.
来源期刊	ECOLOGY AND EVOLUTION
ISSN	2045-7758
出版年	2021
卷号	11 期号:5 页码:2375-2390
英文摘要	In the Atacama Desert from northern Chile (19-24 degrees S), Prosopis (Leguminosae) individuals are restricted to oases that are unevenly distributed and isolated from each other by large stretches of barren landscape constituting an interesting study model as the degree of connectivity between natural populations depends on their dispersal capacity and the barriers imposed by the landscape. Our goal was to assess the genetic diversity and the degree of differentiation among groups of Prosopis individuals of different species from Section Algarobia and putative hybrids (hereafter populations) co-occurring in these isolated oases from the Atacama Desert and determine whether genetic patterns are associated with dispersal barriers. Thirteen populations were sampled from oases located on three hydrographic basins (Pampa del Tamarugal, Rio Loa, and Salar de Atacama; northern, central, and southern basins, respectively). Individuals genotyped by eight SSRs show high levels of genetic diversity (H-O = 0.61, A(r) = 3.5) and low but significant genetic differentiation among populations (F-ST = 0.128, FST-ENA = 0.129, D-JOST = 0.238). The AMOVA indicates that most of the variation occurs within individuals (79%) and from the variance among individuals (21%); almost, the same variation can be found between basins and between populations within basins. Differentiation and structure results were not associated with the basins, retrieving up to four genetic clusters and certain admixture in the central populations. Pairwise differentiation comparisons among populations showed inconsistencies considering their distribution throughout the basins. Genetic and geographic distances were significantly correlated at global and within the basins considered (p < .02), but low correlation indices were obtained (r < .37). These results are discussed in relation to the fragmented landscape, considering both natural and non-natural (humans) dispersal agents that may be moving Prosopis in the Atacama Desert.
英文关键词	Algarrobo Chilenses genetic diversity microsatellites sociocultural factors structure
类型	Article
语种	英语
开放获取类型	DOAJ Gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000616644300001
WOS类目	Ecology ; Evolutionary Biology
WOS研究方向	Environmental Sciences & Ecology ; Evolutionary Biology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350032
作者单位	[Bessega, Cecilia; Pometti, Carolina] Univ Buenos Aires, Dept Ecol Genet & Evoluc EGE, Genet Especies Lenosas GEEL, Fac Ciencias Exactas & Nat, Buenos Aires, DF, Argentina; [Bessega, Cecilia; Pometti, Carolina] Univ Buenos Aires, Inst Ecol Genet & Evoluc IEGEBA, CONICET, Buenos Aires, DF, Argentina; [Fortunato, Renee] Consejo Nacl Invest Cient & Tecn, Inst Recursos Biol, CIRN, INTA, Buenos Aires, DF, Argentina; [Fortunato, Renee] Univ Moron, ESIIyCA, Moron, Argentina; [Santoro, Calogero M.] Univ Tarapaca, Inst Alta Investigac, Arica, Chile; [McRostie, Virginia] Pontificia Univ Catolica Chile, Fac Ciencias Sociales, Escuela Antropol, Santiago, Chile; [McRostie, Virginia] Ctr Desierto Atacama UC, Santiago, Chile
推荐引用方式 GB/T 7714	Bessega, Cecilia,Pometti, Carolina,Fortunato, Renee,et al. Genetic studies of various Prosopis species (Leguminosae, Section Algarobia) co-occurring in oases of the Atacama Desert (northern Chile)[J],2021,11(5):2375-2390.
APA	Bessega, Cecilia,Pometti, Carolina,Fortunato, Renee,Greene, Francisca,Santoro, Calogero M.,&McRostie, Virginia.(2021).Genetic studies of various Prosopis species (Leguminosae, Section Algarobia) co-occurring in oases of the Atacama Desert (northern Chile).ECOLOGY AND EVOLUTION,11(5),2375-2390.
MLA	Bessega, Cecilia,et al."Genetic studies of various Prosopis species (Leguminosae, Section Algarobia) co-occurring in oases of the Atacama Desert (northern Chile)".ECOLOGY AND EVOLUTION 11.5(2021):2375-2390.