A High-density Genetic Linkage Map and QTL Mapping for Growth and Sex of Yellow Drum (Nibea Albiflora)
Affiliations
A high-density genetic linkage map is essential for the studies of comparative genomics and gene mapping, and can facilitate assembly of reference genome. Herein, we constructed a high-density genetic linkage map with 8,094 SNPs selected from 113 sequenced fish of a F1 family. Ultimately, the consensus map spanned 3818.24 cM and covered nearly the whole genome (99.4%) with a resolution of 0.47 cM. 1,457 scaffolds spanning 435.15 Mb were anchored onto 24 linkage groups, accounting for 80.7% of the draft genome assembly of the yellow drum. Comparative genomic analyses with medaka and zebrafish genomes showed superb chromosome-scale synteny between yellow drum and medaka. QTL mapping and association analysis congruously revealed 22 QTLs for growth-related traits and 13 QTLs for sex dimorphism. Some important candidate genes such as PLA2G4A, BRINP3 and P2RY1 were identified from these growth-related QTL regions. A gene family including DMRT1, DMRT2 and DMRT3 was identified from these sex-related QTL regions on the linkage group LG9. We demonstrate that this linkage map can facilitate the ongoing marker-assisted selection and genomic and genetic studies for yellow drum.
QTL Mapping-Based Identification of Visceral White-Nodules Disease Resistance Genes in .
Li Q, Zhu J, Liu S, Liu H, Zhang T, Ye T Int J Mol Sci. 2024; 25(20).
PMID: 39456653 PMC: 11507142. DOI: 10.3390/ijms252010872.
Zhang W, Lu Z, Guo T, Yuan C, Liu J BMC Genomics. 2024; 25(1):641.
PMID: 38937677 PMC: 11212225. DOI: 10.1186/s12864-024-10535-4.
Zhang Y, Li J, Chu P, Shang R, Yin S, Wang T BMC Genomics. 2023; 24(1):645.
PMID: 37891474 PMC: 10604518. DOI: 10.1186/s12864-023-09740-4.
Zhu C, Liu H, Pan Z, Cheng L, Sun Y, Wang H DNA Res. 2022; 29(4).
PMID: 35861402 PMC: 9358014. DOI: 10.1093/dnares/dsac028.
DMRT2 Interacts With FXR and Improves Insulin Resistance in Adipocytes and a Mouse Model.
Tao J, Yu X, Yuan Y, Shen X, Liu J, Gu P Front Endocrinol (Lausanne). 2022; 12:723623.
PMID: 35250844 PMC: 8891600. DOI: 10.3389/fendo.2021.723623.