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Identification of gonadal associated genes in black tiger shrimp (Penaeus monodon) using transcriptome analysis and high-throughput sequencing

文献类型： 外文期刊

作者： Li, Yundong 1 ; Zhou, Falin 1 ; Su, Ningning 1 ; Jiang, Song 1 ; Yang, Qibin 1 ; Huang, Jianhua 1 ; Yang, Lishi 1 ; Jiang, Shigui 1 ;

作者机构： 1.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Minist Agr & Rural Affairs, Key Lab South China Sea Fishery Resources Exploit, Guangzhou, Peoples R China

2.Sanya Trop Fisheries Res Inst, Key Lab Efficient Utilizat & Proc Marine Fishery, Sanya, Peoples R China

3.Hainan Univ, Coll Marine Sci, Hainan Aquaculture Breeding Engn Res Ctr, Key Lab Trop Hydrobiol & Biotechnol Hainan Prov, Haikou, Hainan, Peoples R China

4.Hainan Yazhou Bay Seed Lab, Sanya, Peoples R China

5.South China Agr Univ, Guangdong Lab Lingnan Modern Agr, Coll Marine Sci, Guangzhou, Peoples R China

关键词： black tiger shrimp; gonadal development; Penaeus monodon; reproductive maturation; transcriptome analysis

期刊名称：AQUACULTURE RESEARCH （ 影响因子：2.184； 五年影响因子：2.447 ）

ISSN： 1355-557X

年卷期：

页码：

收录情况： SCI

摘要： Black tiger shrimp (Penaeus monodon) is a commercially important species. It is reported to have low reproductive maturation rates in captivity. To improve the production of this species via sustainable aquaculture, genetic techniques are required to improve its maturation rates. However, to date, reports on P. monodon reproduction at a transcriptional level are limited. To address this, we conducted transcriptome sequencing of the ovaries and testes of P. monodon using high-throughput sequencing to identify sex-related pathways and genes. A total of 75.74 Gb of clean data were generated from nine gonadal tissue libraries. We obtained 62,276 unigenes with a mean length of 1452 bp and N50 of 2423 bp. A total of 11,411 significantly differentially expressed genes (DEGs) were identified between the testis and developed ovaries. Enrichment analysis of the DEGs identified 415 significantly enriched GO terms and 106 enriched KEGG pathways. Genes related to the P. monodon ovaries were enriched in the steroid biosynthesis, mRNA surveillance, nucleocytoplasmic transport, oxidative phosphorylation and DNA replication pathways. Five upregulated and five downregulated ovarian genes were confirmed using RT-PCR. This investigation has thus identified important sex-related functional genes, GO terms and pathways in P. monodon. In particular, we identified several important genes and pathways related to gonadal development, such as GnRH/GnRHR-like, Hsp90, PCNA, cathepsin L, Wnt signalling pathway and ovarian steroidogenesis pathway, which provide important insights into the mechanism analysis and sex regulation of shrimp gonadal development. The results will provide reference data for future research into the reproductive biology of shrimp, which will aid in improved black tiger shrimp breeding in captivity.

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