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| Matte,Eunice M.; Castilho,Camila S.; Miotto,Renata A.; Sana,Denis A.; Johnson,Warren E.; O'Brien,Stephen J.; Freitas,Thales R. O. de; Eizirik,Eduardo. |
| The puma is an iconic predator that ranges throughout the Americas, occupying diverse habitats. Previous phylogeographic analyses have revealed that it exhibits moderate levels of genetic structure across its range, with few of the classically recognized subspecies being supported as distinct demographic units. Moreover, most of the species' molecular diversity was found to be in South America. To further investigate the phylogeographic structure and demographic history of pumas we analyzed mtDNA sequences from 186 individuals sampled throughout their range, with emphasis on South America. Our objectives were to refine the phylogeographic assessment within South America and to investigate the demographic history of pumas using a coalescent approach. Our... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Conservation genetics; Mammals; Mitochondrial DNA; Molecular time estimate; Phylogeography. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572013000400018 |
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| Soares,Thannya Nascimento; Telles,Mariana P.C.; Resende,Lucileide V.; Silveira,Leandro; Jácomo,Anah Tereza A.; Morato,Ronaldo G.; Diniz-Filho,José Alexandre F.; Eizirik,Eduardo; Brondani,Rosana P.V.; Brondani,Claudio. |
| We used microsatellite loci to test the paternity of two male jaguars involved in an infanticide event recorded during a long-term monitoring program of this species. Seven microsatellite primers originally developed for domestic cats and previously selected for Panthera onca were used. In order to deal with uncertainty in the mother's genotypes for some of the loci, 10000 values of W were derived by simulation procedures. The male that killed the two cubs was assigned as the true sire. Although the reasons for this behavior remain obscure, it shows, in principle, a low recognition of paternity and kinship in the species. Since the two cubs were not very young, one possibility is that the adult male did not recognize the cubs and killed them for simple... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ecological stress; Infanticide; Jaguar; Microsatellites; Paternity. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572006000400025 |
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| Tchaicka,Ligia; Freitas,Thales Renato Ochotorena de; Bager,Alex; Vidal,Stela Luengos; Lucherini,Mauro; Iriarte,Agustín; Novaro,Andres; Geffen,Eli; Garcez,Fabricio Silva; Johnson,Warren E.; Wayne,Robert K.; Eizirik,Eduardo. |
| Abstract To investigate the evolution and biogeography of an endemic group of South American foxes, we examined mitochondrial DNA control region sequences for 118 individuals belonging to all six extant species of the genus Lycalopex. Phylogenetic and molecular dating analyses supported the inference that this genus has undergone a very recent and rapid radiation, stemming from a common ancestor that lived ca. 1 million years ago. The Brazilian endemic L. vetulus was supported as the most basal species in this genus, whereas the most internal group is comprised by the recently diverged (ca. 350,000 years ago) Andean/Patagonian species L. griseus and L. culpaeus. We discuss the inferred phylogenetic relationships and divergence times in the context of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mitochondrial DNA control region; Lycalopex; Canidae; Carnivora. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572016000300442 |
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| da Silva Santos,Anelisie; Trigo,Tatiane Campos; de Oliveira,Tadeu Gomes; Silveira,Leandro; Eizirik,Eduardo. |
| 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 analyses 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 colonization process in this species’ history. We detected two population expansion... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phylogeography; Population genetics; Mitochondrial DNA; Conservation genetics; Historical demography. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572018000200273 |
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