期刊
ICHTHYOLOGICAL RESEARCH
卷 63, 期 1, 页码 187-191出版社
SPRINGER JAPAN KK
DOI: 10.1007/s10228-015-0487-2
关键词
Freshwater fish spawning; Fish reproduction; Molecular markers; Multiple paternity; Polygamy
资金
- Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES) through Programa de Doutorado Sanduiche no Exterior (PDSE) [1592/812]
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) [2010/52315-7]
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq)
- Sistema Nacional de Pesquisa em Biodiversidade (SISBIOTA-Brazil, MCTI/CNPq) [563299/2010-0]
- CAPES through a scholarship under Programa de Apoio a Projetos Institucionais com a Participacao de Recem-Doutores'' (PRODOC) [2637/2010]
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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