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Sex Dev. 2017;11(5-6):298-306. doi: 10.1159/000485270. Epub 2017 Dec 15.

Sex Determination and Sex Chromosomes in Amphibia.

Author information

1
Amphibian Research Center, Hiroshima University, Higashi-Hiroshima, Japan.

Abstract

Sex chromosomes in most amphibians are homomorphic (undifferentiated) in both sexes and are characterized by frequent turnover. This is in sharp contrast to sex chromosomes in 2 major vertebrate groups, the mammals and birds, where they are heteromorphic in one sex and are highly conserved. Sex-determining mechanisms in anuran amphibians, particularly in relation to the turnover of sex-determining genes and sex chromosomes, are summarized and their evolution is discussed.

KEYWORDS:

Evolution; Heteromorphy; Homomorphy; Turnover

PMID:
29241181
DOI:
10.1159/000485270
[Indexed for MEDLINE]
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