Unraveling the genotype by environment interaction in a thermosensitive fish with a polygenic sex determination system.

ABSTRACT: In most animals, sex determination occurs at conception, when sex chromosomes are segregated following Mendelian laws. However, in multiple reptiles and fishes, this genetic sex can be overridden by external factors after fertilization or birth. In some species, the genetic sex may also be governed by multiple genes, further limiting our understanding of sex determination in such species. We used the European sea bass (Dicentrarchus labrax) as a model and combined genomic (using a single nucleotide polymorphism chip) and transcriptomic (RNA-Sequencing) approaches to thoroughly depict this polygenic sex determination system and its interaction with temperature. We estimated genetic sex tendency (eGST), defined as the estimated genetic liability to become a given sex under a liability

SUBMITTER: Geffroy B 

PROVIDER: S-EPMC8685686 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature