Differential Expression of dmrt1 in Astyanax scabripinnis (Teleostei, Characidade) Is Correlated with B Chromosome Occurrence
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Data
2018-12-18
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Mary Ann Liebert, Inc
Resumo
Astyanax is an abundant fish genus in South America. Some species of this group are characterized by the presence of B chromosomes and absence of morphologically differentiated sex chromosomes. In this study, we used quantitative real-time polymerase chain reaction to characterize mRNA expression of dmrt1 in Astyanax scabripinnis gonads. Maturing gonads of males with the B chromosome overexpressed dmrt1. Our findings suggest that B chromosomes may have an adaptive role in A. scabripinnis sex determination and maintenance.
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dmrt1, sex determination, sex differentiation, sex ratio, hermaphroditism, fish
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Zebrafish. New Rochelle: Mary Ann Liebert, Inc, v. 16, n. 2, p. 182-188, 2019.