| Journal: | Genetics and molecular biology |
| Database: | PERIÓDICA |
| System number: | 000418122 |
| ISSN: | 1415-4757 |
| Authors: | Santos, Anelisie da Silva1 Trigo, Tatiane Campos2 Oliveira, Tadeu Gomes de3 Silveira, Leandro5 Eizirik, Eduardo4 |
| Institutions: | 1Pontificia Universidade Catolica do Rio Grande do Sul, Laboratorio de Biologia Genomica e Molecular, Porto Alegre, Rio Grande do Sul. Brasil 2Fundacao Zoobotanica do Rio Grande do Sul, Museu de Ciencias Naturais, Porto Alegre, Rio Grande do Sul. Brasil 3Universidade Estadual do Maranhao, Sao Luis, Maranhao. Brasil |
| Year: | 2018 |
| Volumen: | 41 |
| Pages: | 273-287 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Analítico |
| English abstract | The pampas cat is a small felid that occurs in open habitats throughout much of South America. Previous studies have revealed intriguing patterns of morphological differentiation and genetic structure among its populations, as well as molecular evidence for hybridization with the closely related L. tigrinus . Here we report phylogeographic anal- yses encompassing most of its distribution (focusing particularly on Brazilian specimens, which had been poorly sampled in previous studies), using a novel dataset comprising 2,143 bp of the mitogenome, along with previously reported mtDNA sequences. Our data revealed strong population strutucture and supported a west-to-east coloniza- tion process in this species’ history. We detected two population expansion events, one older ( ca. 200 thousand years ago [kya]) in western South America and another more recent ( ca. 60-50 kya) in eastern areas, coinciding with the expansion of savanna environments in Brazil. Analyses including L. tigrinus individuals bearing introgressed mtDNA from L. colocola showed a complete lack of shared haplotypes between species, indicating that their hybrid- ization was ancient. Finally, we observed a close relationship between Brazilian/Uruguayan L. colocola haplotypes and those sampled in L. tigrinus , indicating that their hybridization was likely related to the demographic expansion of L. colocola into eastern South America |
| Disciplines: | Biología, Demografía |
| Keyword: | Mamíferos, Genética, Características de la población, Filogeografía, Genética de poblaciones, Leopardus colocolo, Gato de las pampas, ADN mitocondrial, Conservación genética, Demografía histórica, América del Sur |
| Keyword: | Mammals, Genetics, Demographics, Phylogeography, Population genetics, Leopardus colocolo, Pampas cat, Mitochondrial DNA, Conservation genetics, Historical demographics, South America |
| Full text: | Texto completo (Ver PDF) |
