In Silico Chromosome Mapping of the Male-Specific/Linked Loci in the Jade Perch (Scortum barcoo) Suggests Chromosome 19 as the Putative Y Sex Chromosome

• Type: Article in International Scientific Journal
• Date: 2023

Authors

Panthum, T (Author) Other; Wattanadilokchatkun, P (Author) Other; Jaisamut, K (Author) Other; Singchat, W (Author) Other; Ahmad, SF (Author) Other; Muangmai, N (Author) Other; Duengkae, P (Author) Other; Agostinho Antunes (Author) FCUP; Srikulnath, K (Author) Other

Journal

Title: Fishes

Vol. 8

Final page: 482

Publisher: MDPI

Indexing

ISI Web of Knowledge - 0 Citations

Scopus - 0 Citations

Other information

Authenticus ID: P-00Z-3EH

DOI: 10.3390/fishes8100482

Abstract (EN): Jade perch (Scortum barcoo) has an XX/XY sex-determination system (SDS); however, its sex chromosomes and sex-determining region remain unknown. The recent availability of the jade perch chromosome-level genomic data provides a valuable resource for pinpointing the location of functional genes and the whole genomic structure. In this study, we conducted. In silico chromosome mapping of male-specific/linked loci of jade perch and identified a potential 11.18 Mb male-linked region localized on chromosome 19 (SBA19). Repeat annotations of the male-linked region revealed an abundance of transposable elements, particularly Ty3/Gypsy and novel repeats. Sequence analysis of this region identified a remnant of amh gene, which is considered a potential candidate for SDS in many teleosts. A duplicate copy of amh remnant was located at SBA6. These duplicated amh copies were highly similar to those of XX/XY SDS in teleosts, in which one copy of amh was identified on the Y sex chromosome. Taken all together, we hypothesize SBA19 as the putative sex chromosome and the 11.18 Mb male-linked region to be a potential male-determining region.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 20