Transcriptome and metabolome analyses reveal gender-specific expression genes in sea cucumber (Holothuria leucospilota)
文献类型： 外文期刊
作者： Zhang, Jing 1 ; Liu, Xi 1 ; Wang, Ya-kun 3 ; Yu, Zong-he 4 ; Wang, Wen-jie 1 ; Jia, Wei-zhang 1 ;
作者机构： 1.Guangdong Pharmaceut Univ, Sch Life Sci & Biopharmaceut, Guangzhou, Peoples R China
2.Guangdong Pharmaceut Univ, Guangdong Prov Key Lab Biotechnol Drug Candidate R, Guangzhou, Peoples R China
3.Chinese Acad Fishery Sci, Pearl River Fisheries Res Inst, Minist Agr & Rural Affairs, Key Lab Trop & Subtrop Fishery Resource Applicat &, Guangzhou, Peoples R China
4.South China Agr Univ, Coll Marine Sci, Guangzhou, Peoples R China
关键词： Holothuria leucospilota; Gender; Transcriptome; Metabolome
期刊名称：COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS （ 影响因子：3.0； 五年影响因子：3.2 ）
ISSN： 1744-117X
年卷期： 2023 年 47 卷
页码：
收录情况： SCI
摘要： The sea cucumber Holothuria leucospilota, a nutritive and commercial marine species, has a high protein and low lipid content. To date, the mechanisms underlying gender determination and differentiation in sea cucumbers remain unclear. Identifying gender-specific molecular markers is an effective method of revealing the genetic basis of gender determination and differentiation. The inability to distinguish between male and female individuals causes reproductive efficiency to decline in aquaculture. In this study, we used the gonads of the sea cucumber H. leucospilota as samples to conduct the experiment. The differentially abundant metabolites (DAMs) detected by liquid chromatography-mass spectrometry were enriched in pathways associated with prolactin metabolism, insulin metabolism, hypoxia-inducible factor-1 signaling, and calcium signaling. At the transcriptome level, Illumina sequencing was performed on H. leucospilota, demonstrating that gender-specific expression genes were enriched in the retinoic acid-inducible gene I-like receptor signaling pathway, C-type lectin receptor signaling pathway, alpha-linolenic acid metabolism, and ether lipid metabolism by the Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis. By analyzing the common pathways between DAMs and differentially expressed genes, we found that gender-related genes of H. leucospilota were mostly enriched in the necroptosis pathway and the cysteine and methionine metabolism pathways. According to the common pathways, uch-sc1 and uch-sc2 are male-specific expression genes, and uch-sc3 and bhmt are female-specific expression genes at the mRNA level. These results provide information on gender differences in H. leucospilota.
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