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Título: | First Record on Sex Chromosomes in a Species of the Family Cynodontidae: Cynodon gibbus (Agassiz, 1829) |
Autor: | Pinheiro Figliuolo, Vanessa S. Goll, Leonardo Gusso Viana, Patrik Ferreira Feldberg, Eliana Gross, Maria Claudia |
Data do documento: | 2020 |
Revista: | Cytogenetic and Genome Research |
Abstract: | The fish family Cynodontidae belongs to the superfamily Curimatoidea, together with the Hemiodontidae, Serrasalmidae, Parodontidae, Prochilodontidae, Chilodontidae, Curimatidae, and Anostomidae. The majority of the species of this superfamily that have been analyzed to date have a diploid chromosome number of 2n = 54. Differentiated sex chromosomes (with female heterogamety) have been observed only in the Prochilodontidae, Parodontidae, and Anostomidae. The present study provides the first description of differentiated sex chromosomes in the cynodontid species Cynodon gibbus, which has a ZZ/ZW system, and shows that repetitive DNA has played a fundamental role in the differentiation of these sex chromosomes. © 2020 S. Karger AG, Basel. |
DOI: | 10.1159/000505889 |
Aparece nas coleções: | Artigos |
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