Mostrar el registro sencillo del ítem

dc.contributor.author
Ceballos, Santiago Guillermo  
dc.contributor.author
Lessa, E. P.  
dc.contributor.author
Licandeo, R.  
dc.contributor.author
Fernandez, Daniel Alfredo  
dc.date.available
2016-12-02T20:58:14Z  
dc.date.issued
2016-04  
dc.identifier.citation
Ceballos, Santiago Guillermo; Lessa, E. P.; Licandeo, R.; Fernandez, Daniel Alfredo; Genetic relationships between Atlantic and Pacific populations of the notothenioid fish Eleginops maclovinus: the footprints of Quaternary glaciations in Patagonia; Nature Publishing Group; Heredity; 116; 4-2016; 372-377  
dc.identifier.issn
0018-067X  
dc.identifier.issn
1365-2540  
dc.identifier.uri
http://hdl.handle.net/11336/8735  
dc.description.abstract
The genetic relationships between the Pacific and the Atlantic populations of marine coastal biota in Southern South America have been analyzed in few studies, most of them relying on a single mitochondrial locus. We analyzed 10 polymorphic microsatellite loci, isolated from a dinucleotide-enriched Eleginops maclovinus genomic library, in a total of 240 individuals (48 from each of 5 sampled sites: 2 Atlantic, 2 Pacific and 1 in Beagle Channel). The results were contrasted against a previous work on the same species with mitochondrial DNA (mtDNA). Observed heterozygosity within localities ranged from 0.85 to 0.88 with the highest overall number of alleles observed at the northernmost locality on the Pacific side (Concepción), but no clear geographic pattern arose from the data. On the other hand, the number of private alleles was negatively correlated with latitude (Spearman's rs test, P= 0.017). Among-population variance was low but significant (1.35%; Po0.0001, analysis of molecular variance (AMOVA)) and low genetic differentiation between populations was observed (pairwise FST values ranged from 0 to 0.021). A Mantel test revealed a significant correlation between geographic distances and FST (r= 0.56, P= 0.047). This could be partially accounted by the Atlantic versus Pacific population differentiation detected in three different analyses (STRUCTURE, SAMOVA (Spatial Analysis of MOlecular VAriance) and a population phylogeny). The observed pattern is compatible with a history of separation into two glacial refugia that was better captured by the multilocus microsatellite data than by the mtDNA analysis.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Nature Publishing Group  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Eleginops Maclovinus  
dc.subject
Microsatellites  
dc.subject
Glaciations  
dc.subject
Patagonia  
dc.subject.classification
Genética y Herencia  
dc.subject.classification
Ciencias Biológicas  
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS  
dc.title
Genetic relationships between Atlantic and Pacific populations of the notothenioid fish Eleginops maclovinus: the footprints of Quaternary glaciations in Patagonia  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2016-12-01T19:54:57Z  
dc.journal.number
116  
dc.journal.pagination
372-377  
dc.journal.pais
Reino Unido  
dc.journal.ciudad
Londres  
dc.description.fil
Fil: Ceballos, Santiago Guillermo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Universidad Nacional de Tierra del Fuego; Argentina  
dc.description.fil
Fil: Lessa, E. P.. Universidad de la Republica; Uruguay  
dc.description.fil
Fil: Licandeo, R.. University Of British Columbia; Canadá  
dc.description.fil
Fil: Fernandez, Daniel Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Universidad Nacional de Tierra del Fuego; Argentina  
dc.journal.title
Heredity  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.nature.com/hdy/journal/v116/n4/full/hdy2015106a.html  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http:/dx.doi.org/10.1038/hdy.2015.106