Journal article
A transcriptomic investigation of appetite-regulation and digestive processes in giant grouper Epinephelus lanceolatus during early larval development
Journal of Fish Biology, Vol.93(4), pp.694-710
2018
PMID: 30232812
Abstract
The giant grouper Epinephelus lanceolatus is an ecologically vulnerable species with high market demand. However, efforts to improve larval husbandry are hindered by a lack of knowledge surrounding larval developmental physiology. To address this shortfall, a transcriptomic approach was applied to larvae between 1 and 14 days post hatch (dph) to characterise the molecular ontogenesis of genes that influence appetite and digestion. Appetite regulating factors were detected from 1 dph, including neuropeptide Y, nesfatin-1, cocaine and amphetamine regulated transcript, cholecystokinin and pituitary adenylate cyclase activating peptide and the expression level of several genes changed sharply with the onset of exogenous feeding. The level of expression for proteases, chitinases, lipases and amylases typically followed one of two expression patterns, a general increase as development progressed, or an inverted U-shape with maximal expression at c. 6 dph. Similarly, the tendency among both expression patterns was for the level of expression to increase around the time of mouth-opening. There was also evidence to suggest the presence of putative isoforms for several digestion-related genes. We have provided an insight into appetite-regulation and digestive processes in groupers during early larval development and have developed a transcriptomic database that will aid future efforts to rear this species in an aquaculture setting.
Details
- Title
- A transcriptomic investigation of appetite-regulation and digestive processes in giant grouper Epinephelus lanceolatus during early larval development
- Authors
- Kelli Anderson (Corresponding Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and EngineeringR Knuckey (Author) - Company OneMaximiliano Canepa (Author) - Company OneAbigail Elizur (Corresponding Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
- Publication details
- Journal of Fish Biology, Vol.93(4), pp.694-710
- Publisher
- Wiley-Blackwell Publishing Ltd.
- Date published
- 2018
- DOI
- 10.1111/jfb.13798
- ISSN
- 0022-1112
- PMID
- 30232812
- Copyright note
- Copyright © 2018 Wiley-Blackwell Publishing Ltd. This is the accepted version of the following article: Anderson, KC, Knuckey, R, Cánepa, M, Elizur, A. A transcriptomic investigation of appetite-regulation and digestive processes in giant grouper Epinephelus lanceolatus during early larval development. J Fish Biol. 2018; 93: 694-710. https://doi.org/10.1111/jfb.13798, which has been published in final form at https://doi.org/10.1111/jfb.13798
- Organisation Unit
- School of Science and Engineering - Legacy; University of the Sunshine Coast, Queensland; GeneCology Research Centre - Legacy; Centre for Bioinnovation
- Language
- English
- Record Identifier
- 99451484202621
- Output Type
- Journal article
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- Collaboration types
- Domestic collaboration
- Web Of Science research areas
- Fisheries
- Marine & Freshwater Biology