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Title: Biomolecular changes that occur in the antennal gland of the giant freshwater prawn (Machrobrachium rosenbergii)
Authors: Utpal Bose
Thanapong Kruangkum
Tianfang Wang
Min Zhao
Tomer Ventura
Shahida Akter Mitu
Mark P. Hodson
Paul N. Shaw
Prasert Sobhon
Scott F. Cummins
University of the Sunshine Coast
University of Queensland
Mahidol University
Burapha University
CSIRO Agriculture and Food
Keywords: Agricultural and Biological Sciences;Biochemistry, Genetics and Molecular Biology
Issue Date: 1-Jun-2017
Citation: PLoS ONE. Vol.12, No.6 (2017)
Abstract: © 2017 Bose et al.This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. In decapod crustaceans, the antennal gland (AnG) is a major primary source of externally secreted biomolecules, and some may act as pheromones that play a major role in aquatic animal communication. In aquatic crustaceans, sex pheromones regulate reproductive behaviours, yet they remain largely unidentified besides the N-acetylglucosamine-1,5-lactone (NAGL) that stimulates male to female attraction. In this study, we used an AnG transcriptome of the female giant freshwater prawn (Macrobrachium rosenbergii) to predict the secretion of 226 proteins, including the most abundantly expressed transcripts encoding the Spaetzle protein, a serine protease inhibitor, and an arthropodial cuticle protein AMP 8.1. A quantitative proteome analysis of the female AnG at intermolt, premolt and postmolt, identified numerous proteins of different abundances, such as the hemocyanin subunit 1 that is most abundant at intermolt. We also show that hemocyanin subunit 1 is present within water surrounding females. Of those metabolites identified, we demonstrate that the NAGL and Nacetylglucosamine (NAG) can bind with high affinity to hemocyanin subunit 1. In summary, this study has revealed components of the female giant freshwater prawn AnG that are released and contribute to further research towards understanding crustacean conspecific signalling.
ISSN: 19326203
Appears in Collections:Scopus 2016-2017

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