Marked changes in neuropeptide expression accompany broadcast spawnings in the gastropod Haliotis asinina.

Frontiers in Zoology
Patrick S YorkBernard M Degnan

Abstract

A huge diversity of marine species reproduce by synchronously spawning their gametes into the water column. Although this species-specific event typically occurs in a particular season, the precise time and day of spawning often can not be predicted. There is little understanding of how the environment (e.g. water temperature, day length, tidal and lunar cycle) regulates a population's reproductive physiology to synchronise a spawning event. The Indo-Pacific tropical abalone, Haliotis asinina, has a highly predictable spawning cycle, where individuals release gametes on the evenings of spring high tides on new and full moons during the warmer half of the year. These calculable spawning events uniquely allow for the analysis of the molecular and cellular processes underlying reproduction. Here we characterise neuropeptides produced in H. asinina ganglia that are known in egg-laying molluscs to control vital aspects of reproduction. We demonstrate that genes encoding APGWamide, myomodulin, the putative proctolin homologue whitnin, FMRFamide, a schistosomin-like peptide (SLP), a molluscan insulin-related peptide (MIP) and a haliotid growth-associated peptide (HGAP) all are differentially expressed in the anterior ganglia during th...Continue Reading

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Citations

Jun 30, 2016·Journal of Peptide Science : an Official Publication of the European Peptide Society·Tianfang WangScott F Cummins
Aug 16, 2019·G3 : Genes - Genomes - Genetics·Natasha A BotwrightScott F Cummins
May 25, 2016·ELife·Debashish BhattacharyaPaul G Falkowski
Dec 18, 2019·Proceedings of the National Academy of Sciences of the United States of America·Gabriele AndreattaFlorian Raible
Mar 16, 2018·ACS Chemical Neuroscience·Guo ZhangJian Jing

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Datasets Mentioned

BETA
159404
JN606063
GT067343

Methods Mentioned

BETA
acetylation
amidation
PCR
dissection

Software Mentioned

NeuroPred
SIG
geNorm
BLASTp
Pred
Primer3
Relative Expression Software Tool for Rotor - Gene 3000 and 6000
ClustalW
R
SignalP

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