Gene flow and genetic structure of the puma and jaguar in Mexico
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Data
2016
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Resumo
Gene flow among populations and subpopulations
homogenizes allele frequencies. This mechanism is strongly
influenced by species dispersal ability, frequently correlating
genetic variation with distance among individuals, which is
also known as an isolation-by-distance pattern. Species with
high dispersal abilities are expected to show a limited
isolation-by-distance pattern compared to those with reduced
dispersal. Here, we use non-invasive genetic sampling of faeces to evaluate how isolation-by-distance is differentially
structured in jaguar and puma populations in Mexico. We
have optimized and validated a reliable and standardized
non-invasive genetic sampling protocol to monitor pumas
based on 12 microsatellite markers, as well as applied a previously published and consistent protocol for jaguars. We
found that jaguars and pumas were not uniform and panmictic
populations. Spatial trends in allele frequencies for both species generated clinal patterns. However, pumas showed a
stronger isolation-by-distance pattern than jaguars, which
was expected since pumas seem to have a lower dispersal
ability than jaguars. The genetic structures of both species
differed at the level of subpopulations. These results reinforce
the differences in intensity of isolation-by-distance between
two generalist species with high dispersal ability
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Palavras-chave
Faeces, Spatial principal component analysis, Genetic clusters, Microsatellitemarkers
Citação
ZANIN, Marina et al. Gene flow and genetic structure of the puma and jaguar in Mexico. European Journal of Wildlife Research, Berlim, v. 62, p. 461-469, 2016. DOI; 10.1007/s10344-016-1019-8. Disponível em: https://link.springer.com/article/10.1007/s10344-016-1019-8. Acesso em: 5 jun. 2023.