Mating system and population analysis of the broad-snouted caiman (Caiman latirostris) using microsatellite markers

The knowledge about reproductive strategies of a species contributes to their conservation. Multiple paternity is a reproductive behavior increasing effective population size, which could increase genetic diversity particularly in populations submitted to bottlenecks events. In Argentina, wild popul...

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Autor principal: Amavet, P.S
Otros Autores: Vilardi, J.C, Rueda, E.C, Larriera, A., Saidman, B.O
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Publicado: 2012
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100 1 |a Amavet, P.S. 
245 1 0 |a Mating system and population analysis of the broad-snouted caiman (Caiman latirostris) using microsatellite markers 
260 |c 2012 
270 1 0 |m Amavet, P.S.; Departamento de Ciencias Naturales, Universidad Nacional Del Litoral, Ciudad Universitaria, Santa Fe 3000, Argentina; email: pamavet@fhuc.unl.edu.ar 
506 |2 openaire  |e Política editorial 
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520 3 |a The knowledge about reproductive strategies of a species contributes to their conservation. Multiple paternity is a reproductive behavior increasing effective population size, which could increase genetic diversity particularly in populations submitted to bottlenecks events. In Argentina, wild populations of Caiman latirostris are subject of a management plan devoted to their preservation and sustainable utilization based on its commercial interest. This program started in response to the evident numeric reduction of the populations, as a consequence of hunting pressure and habitat modification; it had a remarkable success in population recovery allowing the commercial use of C. latirostris. Data on reproductive behavior of C. latirostris are limited because mating occurs in the water and the information about their genetic diversity is scarce too. Our specific aims were to study the mating system and population genetic structure applying microsatellite markers in twelve C. latirostris families. The obtained results showed highly significant difference among populations and a lack of correspondence between geographical distance and genetic differentiation suggesting that populations of C. latirostris represent unstable metapopulations. In the paternity analysis was detected more than one father in two nests, which could be explained by capacity of storage sperm, proposed in females of a related species. The behavior of multipaternity could contribute to maintain viable populations of C. latirostris, since the maintenance of genetic variability within populations could help increase their capacity to respond to selective pressure. Further studies employing genetic and behavioral framework are needed to better understand the reproductive biology of C. latirostris. © 2012 Koninklijke Brill NV, Leiden.  |l eng 
593 |a Departamento de Ciencias Naturales, Universidad Nacional Del Litoral, Ciudad Universitaria, Santa Fe 3000, Argentina 
593 |a Departamento Ecologia, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires 1428, Argentina 
593 |a Proyecto Yacare-Laboratorio de Zoologia Aplicada Anexo Vertebrados (FHUC-UNL/MASPyMA), A. del Valle 8700, Santa Fe 3000, Argentina 
593 |a Carrera Del Investigador Cientifico (CIC), Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET), Argentina 
690 1 0 |a CAIMAN LATIROSTRIS 
690 1 0 |a MOLECULAR MARKERS 
690 1 0 |a MULTIPLE PATERNITY 
690 1 0 |a POPULATION GENETICS 
690 1 0 |a SUSTAINABLE USE 
690 1 0 |a CONSERVATION GENETICS 
690 1 0 |a CROCODILIAN 
690 1 0 |a EFFECTIVE POPULATION SIZE 
690 1 0 |a GENETIC MARKER 
690 1 0 |a GENETIC VARIATION 
690 1 0 |a HUNTING 
690 1 0 |a METAPOPULATION 
690 1 0 |a NATURAL SELECTION 
690 1 0 |a NEST 
690 1 0 |a PATERNITY 
690 1 0 |a POPULATION GENETICS 
690 1 0 |a PRESERVATION 
690 1 0 |a REPRODUCTIVE BEHAVIOR 
690 1 0 |a REPRODUCTIVE BIOLOGY 
690 1 0 |a REPRODUCTIVE STRATEGY 
690 1 0 |a SPECIES CONSERVATION 
690 1 0 |a SUSTAINABILITY 
690 1 0 |a WILD POPULATION 
690 1 0 |a CAIMAN 
690 1 0 |a CAIMAN LATIROSTRIS 
651 4 |a ARGENTINA 
700 1 |a Vilardi, J.C. 
700 1 |a Rueda, E.C. 
700 1 |a Larriera, A. 
700 1 |a Saidman, B.O. 
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