Astyanax hastatus Myers, 1928 (Teleostei, Characidae): A new species complex within the genus Astyanax?

@inproceedings{Kavalco2009AstyanaxHM,
  title={Astyanax hastatus Myers, 1928 (Teleostei, Characidae): A new species complex within the genus Astyanax?},
  author={Karine Frehner Kavalco and Karina de Oliveira Brand{\~a}o and Rubens Pazza and Lurdes Foresti de Almeida-Toledo},
  booktitle={Genetics and molecular biology},
  year={2009}
}
Four populations of Astyanax hastatus Myers 1928 from the Guapimirim River basin (Rio de Janeiro State) were analyzed and three distinct cytotypes identified. These cytotypes presented 2n = 50 chromosomes, with 4M+8SM+10ST+28A (Cytotype A), 8M+10SM+14ST+18A (Cytotype B), 6M+8SM+4ST+32A (Cytotype C) and scanty heterochromatin, mainly located throughout pericentromeric regions of several chromosomal pairs. No homologies with the As-51 satellite DNA were observed in the three cytotypes, although… CONTINUE READING

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