Cytogenetic evidence and dmrt linkage indicate male heterogamety in a non-bilaterian animal.

ABSTRACT: The diversity of sex determination systems in animals suggests that sex chromosomes evolve independently across different lineages. However, the present data on these systems is largely limited and represented mainly by bilaterian animals. Sex chromosomes and sex determination system based on cytogenetic evidence remain a mystery among non-bilaterians, the most basal animals. Here, we investigated the sex determination system of a non-bilaterian (Goniopora djiboutiensis) based on karyotypic analysis and identification of locus of dmrt1, a known master sex-determining gene in many animals. Results showed that among the three isolated dmrt genes, GddmrtC was sperm-linked. Fluorescence in situ hybridization revealed that 47% of the observed metaphase cells contained the GddmrtC locus on the s

SUBMITTER: Vacarizas J 

PROVIDER: S-EPMC10194864 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature