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ABSTRACT: gonadal development of Macrobrachium rosenbergii after androgenic gland ablation

PROVIDER: PRJNA787407 | ENA |

REPOSITORIES: ENA

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Dataset's files

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			Action	DRS
	SRR17175834.fastq.gz	Fastqsanger.gz
	SRR17175835.fastq.gz	Fastqsanger.gz
	SRR17175836.fastq.gz	Fastqsanger.gz
	SRR17175837.fastq.gz	Fastqsanger.gz
	SRR17175838.fastq.gz	Fastqsanger.gz

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RNA-sequencing and function analysis of adult gonad tissue identify potential key transcription factors in Macrobrachium resenbergii with sex determination

Project description:M. rosenbergii is a classical aquatic organism with sex-reversed phenomenon by gene-expressed regulation. Reversal of gonad development in M. rosenbergii received great attention but the role of transcription factors for gonadal maintenance and sex determination in adult shrimps remain unclearly. In this study, we sequencing the transcriptomes for the adult testis, ovary and androgenic gland by third-generation sequencing plus second-generation sequencing, and 21,345 were identified. In total, 9,199 differentially expressed genes (DEGs) were identified in pairwise comparison where 2,990 DEGs were upregulated expression in testis than other tissues, and 5,775 DEGs were upregulated expression in ovary, and 2,244 DEGs were upregulated expression in androgenic. There are 272 differentially expressed transcription factors (DETs) in total. The upregulated DETs in one of the testis, ovary and androgenic glands compared to the others were 107, 152 and 13 respectively. The GO and KEGG of DETs analysis suggested that MAPK signaling pathway and transcriptional misregulation pathway have key function in testis, the thyroid hormone signaling pathway and neuroactive ligand-receptor interaction play a important role in ovary. We determined the existence of networks containing significant DETs related to sex determination in the adult goands of M. rosenbergii. The key DETs are Piwi (only expression in testis and ovary) and Argonaute 2 (only expression in ovary) might be involved with the regulation of ovary development.

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Gut microbiomes associated with hepatopancreatic and gonadal transcriptomes and their impact on growth traits in M. rosenbergii

Project description:With the increasing global demand for high-quality protein resources, improving the feed utilization rate and growth rate of aquaculture animals is the main way to solve the shortage of high-quality animal protein for humans. Improving the growth rate of Macrobrachium rosenbergii, the world's second most-produced freshwater prawn, is of particular importance for increasing the supply of high-quality protein to humans. In this study, we found that growth traits, such as body weight and weight gain of M. rosenbergii, were associated with gut microbes by applying 16s sequencing technology, as well as associated with hepatopancreatic and gonadal transcriptomes. By comparing the relative abundance of gut microbes between the male (high weight gain, HiWG) and female (low weight gain, LoWG) animals, we have shown that at the phyla, family and genera level, the abundance of microbes existed significantly difference between both groups. At the genera level, the abundance of Candidatus Hepatoplasma and unidentified Chloroplast lower in the LoWG animals than in the HiWG animals, and Lactobacillus and Ligilactobacillus have opposed trend. The abundance of Candidatus Hepatoplasma and unclassfied Chloroplast was associated with the growth traits in the HiWG group, as well as with the expression of glutathione peroxidase and collagen, which were highly expressed in the hepatopancreas and gonads of HiWG group animals and significantly associated with protein digestion, absorption and metabolism of M. rosenbergii and might promote growth and development. These associations were not detected in the female LoWG group.

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