Identification and characterization of a crustacean female sex hormone in the giant freshwater prawn, Macrobrachium rosenbergii

Tipsuda Thongbuakaew; Saowaros Suwansa-ard; Prapee Sretarugsa; Prasert Sobhon; Scott F Cummins

doi:10.1016/j.aquaculture.2019.04.002

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Identification and characterization of a crustacean female sex hormone in the giant freshwater prawn, Macrobrachium rosenbergii

Journal article

Peer reviewed

Identification and characterization of a crustacean female sex hormone in the giant freshwater prawn, Macrobrachium rosenbergii

Tipsuda Thongbuakaew, Saowaros Suwansa-ard, Prapee Sretarugsa, Prasert Sobhon and Scott F Cummins

Aquaculture, Vol.507, pp.56-68

2019

DOI: https://doi.org/10.1016/j.aquaculture.2019.04.002

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Abstract

reproductive hormone

crustacean female sex hormone

CFSH

macrobrachium rosenbergii

serotonin

The giant freshwater prawn, Macrobrachium rosenbergii, is an important aquaculture species in many Asian-Pacific countries due to its high economic value. A better understanding of hormones that regulate reproductive processes, including development and maturation of gametes, will facilitate more efficient breeding and larval production in prawn aquaculture. In this study, we identified four gene transcripts from the M. rosenbergii that encode crustacean female sex hormones (CFSHs), which were designated as MroCFSH1a, MroCFSH1b, MroCFSH2a and MroCFSH2b, based on primary sequence and phylogeny. We also show that CFSH may have evolved from an ancestral protein similar to the interleukin 17. All MroCFSH genes are present in the central nervous system (CNS) as well as in other tissues, including the ovaries and testes. The expression level of all MroCFSH during ovarian development is significantly higher in the CNS compared to the ovary. In the brain, MroCFSH expression is localized to small-sized neurons of neuronal clusters 9, 10, and 11, and in the medium- and large-sized neurons of neuronal clusters 14 and 15; regions known to regulate feeding and reproductive behaviors. In the ovary, MroCFSHs expression are found in the oogonia, previtellogenic and early vitellogenic oocytes. A role for CFSHs in M. rosenbergii reproduction was supported following experimental administration of serotonin to ovarian explant cultures, showing an upregulation of MroCFSHs.

Details

Title: Identification and characterization of a crustacean female sex hormone in the giant freshwater prawn, Macrobrachium rosenbergii
Authors: Tipsuda Thongbuakaew (Author) - Walailak University
Saowaros Suwansa-ard (Author) - University of the Sunshine Coast - School of Science & Engineering
Prapee Sretarugsa (Author) - Mahidol University, Thailand
Prasert Sobhon (Author) - Mahidol University, Thailand
Scott F Cummins (Author) - University of the Sunshine Coast - School of Science & Engineering
Publication details: Aquaculture, Vol.507, pp.56-68
Publisher: Elsevier BV
Date published: 2019
DOI: 10.1016/j.aquaculture.2019.04.002
ISSN: 0044-8486
Organisation Unit: School of Science and Engineering - Legacy; University of the Sunshine Coast, Queensland; School of Science, Technology and Engineering; Centre for Bioinnovation
Language: English
Record Identifier: 99450889502621
Output Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Web Of Science research areas: Fisheries; Marine & Freshwater Biology

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