Female-specific genomic regions and molecular sex identification of the clearhead icefish (Protosalanx hyalocranius).

ABSTRACT:

Background

The clearhead icefish, Protosalanx hyalocranius, is an economically important fishery species in China. Since 1980s, P. hyalocranius was widely introduced into lakes and reservoirs of northern China for aquaculture. However, the lack of a rapid and cost-effective sex identification method based on sex specific genetic markers has hindered study on sex determination mechanisms and breeding applications.

Results

Female-specific genomic regions were discovered by comparing whole genome re-sequencing data of both males and females. Two female-specific genomic regions larger than 50 bp were identified, and one (598 bp) contained a putative FOXI gene, which was paralogous to another FOXI gene with sex-associated SNPs. The two FOXI sequences displayed significant length

SUBMITTER: Xing TF 

PROVIDER: S-EPMC8254354 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature