Genomic assessment reveals signal of adaptive selection in populations of the Spotted rose snapper Lutjanus guttatus from the Tropical Eastern Pacific.
|Identificador de recurso:||https://pubmed.ncbi.nlm.nih.gov/37009151/|
|Autor:||Mar-Silva, Adán F.; Diaz-Jaimes, Pindaro; Domínguez-Mendoza, Cristina; Domínguez-Domínguez, Omar; Valdiviezo-Rivera, Jonathan; Espinoza-Herrera, Eduardo.
The lack of barriers in the marine environment has promoted the idea of panmixia in marine organisms. However, oceanographic conditions and habitat characteristics have recently been linked to genetic structure in marine species. The Tropical Eastern Pacific (TEP) is characterized by dynamic current systems and heterogeneous oceanographic conditions. The Gulf of Panama (part of the equatorial segment for the TEP) is influenced by a complex current system and heterogeneous environment, which has been shown to limit the gene flow for shoreline species. Next Generation Sequencing (NGS) has contributed to detect genetic differences in previously reported panmictic species by the assessment of loci associated with selection and to understand how selection acts affects marine populations. Lutjanus guttatus is a species distributed in the TEP for which previous studies using mitochondrial data recovered a panmictic pattern along its distributional range. In this study, we used SNP data of L. guttatus individuals sampled along its range to evaluate population genetic structure and investigate whether oceanographic factors influence the species’ genetic architecture. Finally, we assessed the role of adaptive selection by evaluating the contribution of outlier and neutral loci to genetic divergence.
Fisheries; Gene flow; Genetic divergence; Selection.
|Tipo de recurso||texto|
|Nombre de archivo||https://doi.org/10.7717/peerj.15029|