scispace - formally typeset
H

Helena D'Cotta

Researcher at University of Montpellier

Publications -  49
Citations -  4417

Helena D'Cotta is an academic researcher from University of Montpellier. The author has contributed to research in topics: Nile tilapia & Sexual differentiation. The author has an hindex of 27, co-authored 47 publications receiving 4048 citations. Previous affiliations of Helena D'Cotta include University of Maryland, College Park & University of Zurich.

Papers
More filters
Journal ArticleDOI

The genomic substrate for adaptive radiation in African cichlid fish

David Brawand, +82 more
- 18 Sep 2014 - 
TL;DR: This article found an excess of gene duplications in the East African lineage compared to Nile tilapia and other teleosts, an abundance of non-coding element divergence, accelerated coding sequence evolution, expression divergence associated with transposable element insertions, and regulation by novel microRNAs.

The genomic substrate for adaptive radiation in African cichlid fish

David Brawand, +82 more
TL;DR: It is concluded that a number of molecular mechanisms shaped East African cichlid genomes, and that amassing of standing variation during periods of relaxed purifying selection may have been important in facilitating subsequent evolutionary diversification.
Journal ArticleDOI

Environment and sex determination in farmed fish

TL;DR: In gonochoristic fish, steroid hormones with estrogens in females and 11-oxygenated androgens in males, are probably key physiological steps in the regulation of gonadal sex differentiation.
Journal ArticleDOI

Environmental effects on fish sex determination and differentiation.

TL;DR: In tilapia and sea bass, domestic stocks and field-collected populations showed similar patterns of thermosensitivity under controlled conditions, and transitional forms within a genetic sex determination (GSD) and environmental sexdetermination (ESD) continuum seem to exist.
Journal ArticleDOI

DMRT1 expression during gonadal differentiation and spermatogenesis in the rainbow trout, Oncorhynchus mykiss

TL;DR: Cloned a DMRT1 homologue in the rainbow trout showed that this gene is expressed during testicular differentiation, but not during ovarian differentiation, and new DM-domain homologous sequences in fish suggest that at least four different genes bearing 'DM-domain' (DMRT genes) exist in fish just as in all vertebrate genomes.