The Duplicated Y-specific amhy Gene Is Conserved and Linked to Maleness in Silversides of the Genus Odontesthes
Sex-determining genes have been successively isolated in several teleosts. In and , the gene has been identified as a master sex-determining gene. However, whether this gene is conserved along related species is still unknown. In this study, the presence of and its association with phenotypic sex wa...
Saved in:
Published in | Genes Vol. 10; no. 9; p. 679 |
---|---|
Main Authors | , , , , , , , |
Format | Journal Article |
Language | English |
Published |
Switzerland
MDPI AG
05.09.2019
MDPI |
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | Sex-determining genes have been successively isolated in several teleosts. In
and
, the
gene has been identified as a master sex-determining gene. However, whether this gene is conserved along related species is still unknown. In this study, the presence of
and its association with phenotypic sex was analyzed in 10 species of
genus. The primer sets from
that amplify both
successfully generated fragments that correspond to
and
in all species. The full sequences of
and
isolated for four key species revealed higher identity values among presumptive
, including the 0.5 Kbp insertion in the third intron and
-specific insertions/deletions.
was present in all specimens, regardless of species and sex, whereas
was amplified in most but not all phenotypic males. Complete association between
-homologue with maleness was found in
and
whereas
.
,
, and
showed varied degrees of phenotypic/genotypic sex mismatch. The conservation of
gene in
provide an interesting framework to study the evolution and the ecological interactions of genotypic and environmental sex determination in this group. |
---|---|
Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 2073-4425 2073-4425 |
DOI: | 10.3390/genes10090679 |