Abstract
Many relevant aspects of the breeding ecology of South American migratory fishes remain obscure. We conducted kinship analyses and parental reconstruction based on microsatellite genotypes of 41 Salminus brasiliensis larvae sampled from a single natural spawning event. Polygynandry involving 25 (12:13) potential parents was suggested, supporting ecological observations of aggregation during spawning. Some parents contributed up to five half-sibling larvae genotypes, implying a skewed contribution of genes to the progeny. This study contributed to preliminary insights into the S. brasiliensis genetic mating system.
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Acknowledgments
This study was carried out under permit and guidelines of the Animal Care Protocol PP00788 of the Federal University of Santa Catarina (UFSC). We are grateful to Michele C. Nunes M. C. and Pedro Iaczinki for help collecting biological material. We deeply thank Dr. DA Reynalte-Tataje for taxonomic identification of larvae, and Carolina B. M. Silva for collaboration in molecular identification. JR thanks the support of Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) through Programa de Doutorado Sanduíche no Exterior (PDSE) (no. 1592/81-2). PMGJ thanks Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP, Grant no. 2010/52315-7), Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) and Sistema Nacional de Pesquisa em Biodiversidade (SISBIOTA-Brazil, MCTI/CNPq no. 563299/2010-0). CIM is currently a fellow of Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET, Argentina), and during the initial drafting of this manuscript she was supported by CAPES through a scholarship under “Programa de Apoio a Projetos Institucionais com a Participação de Recém-Doutores” (PRODOC) (2637/2010).
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Ribolli, J., Miño, C.I., Zaniboni-Filho, E. et al. Preliminary insights into the genetic mating system of Neotropical Salminus brasiliensis: kinship assignment and parental reconstruction reveal polygynandry. Ichthyol Res 63, 187–191 (2016). https://doi.org/10.1007/s10228-015-0487-2
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DOI: https://doi.org/10.1007/s10228-015-0487-2