Fine-scale genetic structure of suckermouth Hypostomus ancistroides populations: the importance of Neotropical streams for fish conservation

Our analyses revealed a spatial heterogeneity in genetic diversity within the basin, indicating fine-scale genetic structuring

Caroline Apolinário-Silva; Bruno Ambrozio Galindo; Raul Henrique Cardoso Nascimento; Wilson Frantine-Silva; Thais Kotelok-Diniz; Silvia Helena Sofia; Dhiego Gomes Ferreira

2021

Scholarcy highlights

  • In the Neotropics, freshwater streams harbour high fish diversity and are constantly threatened by anthropogenic disturbance
  • We aimed to assess, based on microsatellite and mitochondrial DNA markers, the population structure and genetic diversity of the suckermouth catfish, Hypostomus ancistroides, a Neotropical species widely distributed across the Upper Paraná River Basin in South America
  • Our analyses revealed a spatial heterogeneity in genetic diversity within the basin, indicating fine-scale genetic structuring
  • The fine-scale genetic structuring of H. ancistroides is probably related to the limited displacement capacity of this species

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