Putative chemosensory receptors are differentially expressed in the sensory organs of male and female crown-of-thorns starfish, Acanthaster planci

Rebecca Roberts; Daniel Powell; Tianfang Wang; M H Hall; C A Motti; Scott F Cummins

doi:10.1186/s12864-018-5246-0

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Putative chemosensory receptors are differentially expressed in the sensory organs of male and female crown-of-thorns starfish, Acanthaster planci

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Putative chemosensory receptors are differentially expressed in the sensory organs of male and female crown-of-thorns starfish, Acanthaster planci

Rebecca Roberts, Daniel Powell, Tianfang Wang, M H Hall, C A Motti and Scott F Cummins

BMC Genomics, Vol.19, 853

2018

DOI: https://doi.org/10.1186/s12864-018-5246-0

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Abstract

chemosensation

olfaction

GPCR

starfish

COTS

RNASeq

differential gene expression

Background: Chemosensation is a critical signalling process for all organisms and is achieved through the interaction between chemosensory receptors and their ligands. The Crown-of-thorns starfish, Acanthaster planci species complex (COTS), is a predator of coral polyps and Acanthaster cf. solaris is currently considered to be one of the main drivers of coral loss on the Great Barrier Reef in Queensland, Australia. Results: This study reveals the presence of putative variant Ionotropic Receptors (IRs) which are differentially expressed in the olfactory organs of COTS. Several other types of G protein-coupled receptors such as adrenergic, metabotropic glutamate, cholecystokinin, trace-amine associated, GRL101 and GPCR52 receptors have also been identified. Several receptors display male-biased expression within the sensory tentacles, indicating possible reproductive significance. Conclusions: Many of the receptors identified in this study may have a role in reproduction and are therefore key targets for further investigation. Based on their differential expression within the olfactory organs and presence in multiple tissues, it is possible that several of these receptor types have expanded within the Echinoderm lineage. Many are likely to be species-specific with novel ligand-binding affinity and a diverse range of functions. This study is the first to describe the presence of variant Ionotropic Glutamate Receptors in any Echinoderm, and is only the second study to investigate chemosensory receptors in any starfish or marine pest. These results represent a significant step forward in understanding the chemosensory abilities of COTS.

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Title: Putative chemosensory receptors are differentially expressed in the sensory organs of male and female crown-of-thorns starfish, Acanthaster planci
Authors: Rebecca Roberts (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
Daniel Powell (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
Tianfang Wang (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
M H Hall (Author) - Australian Institute of Marine Science (AIMS)
C A Motti (Author) - Australian Institute of Marine Science (AIMS)
Scott F Cummins (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
Publication details: BMC Genomics, Vol.19, 853; 13
Publisher: BioMed Central Ltd.
Date published: 2018
DOI: 10.1186/s12864-018-5246-0
ISSN: 1471-2164
Copyright note: Copyright © The Author(s). 2018 Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
Organisation Unit: School of Science and Engineering - Legacy; University of the Sunshine Coast, Queensland; GeneCology Research Centre - Legacy; Office of Research; School of Science, Technology and Engineering; Centre for Bioinnovation
Language: English
Record Identifier: 99451348002621
Output Type: Journal article

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