The male and female genomes of golden pompano (Trachinotus ovatus) provide insights into the sex chromosome evolution and rapid growth

• DOI: 10.1016/j.jare.2023.11.030
• Publication Date: 2023-12-02T16:20:26Z
• Authors: Honglin Luo; Yongde Zhang; Fuyan Liu; Yongzhen Zhao; Jinxia Peng; Yuhui Xu; Xiuli Chen; Yin Huang; Changmian Ji; Qingyun Liu; Pingping He; Pengfei Feng; Chunling Yang; Pinyuan Wei; Zhenhua Ma; Jianguang Qin; Shengjie Zhou; Shiming Dai; Yaoyao Zhang; Zhongquan Zhao; Hongling Liu; Hongkun Zheng; Jisen Zhang; Yong Lin; Xiaohan Chen
• Keywords: SNP

Golden pompano (Trachinotus ovatus) is economically significant important for offshore cage aquaculture in China and Southeast Asian countries. Lack of high-quality genomic data accurate gene annotations greatly restricts its genetic breeding progress. To decode the mechanisms sex determination rapid growth golden facilitate sex- growth-aimed breeding. Genome assemblies male female were generated using Illumina, PacBio, BioNano, maps Hi-C sequencing data. Genomic comparisons, whole genome re-sequencing 202 F1 individuals, QTL mapping gonadal transcriptomes used to analyze determining region, chromosome evolution, SNP loci, candidate genes. Zebrafish model was investigate functions gene. Female (644.45 Mb) (652.12 genomes assembled annotated at level. Both are highly conserved no new or differentiated chromosomes occur. A 3.5 Mb region on LG15 identified, where Hsd17b1, Micall2 Lmx1a putative candidates determination. Three loci significantly linked pinpointed, a growth-linked gpsstr1 identified by locus BSNP1369 (G→C, 17489695, Chr23). Loss sstr1a (homologue gpsstr1) zebrafish caused retardation. This study provides insights into pompano.