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Unravelling the neuropeptidome of the ornate spiny lobster Panulirus ornatus: a focus on peptide hormones and their processing enzymes expressed in the reproductive tissues
Glendinning, S and Fitzgibbon, QP and Smith, GG and Ventura, T, Unravelling the neuropeptidome of the ornate spiny lobster Panulirus ornatus: a focus on peptide hormones and their processing enzymes expressed in the reproductive tissues, General and Comparative Endocrinology, 332 Article 114183. ISSN 0016-6480 (2023) [Refereed Article]
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Neuropeptides are commonly produced in the neural tissues yet can have effects on far-reaching targets, with varied biological responses. We describe here the neuropeptidome of the ornate spiny lobster, Panulirus ornatus, a species of emerging importance to closed-system aquaculture, with a focus on peptide hormones produced by the reproductive tissues.
Transcripts for a precursor to one neuropeptide, adipokinetic hormone/corazonin-related peptide (ACP) were identified in high numbers in the sperm duct of adult spiny lobsters suggesting a role for ACP in the reproduction of this species. Neuropeptide production in the sperm duct may be linked with physiological control of spermatophore production in the male, or alternatively may function in signalling to the female.
The enzymes which process nascent neuropeptide precursors into their mature, active forms have seldom been studied in decapods, and never before at the multi-tissue level. We have identified transcripts for multiple members of the proprotein convertase subtisilin/kexin family in the ornate spiny lobster, with some enzymes showing specificity to certain tissues. In addition, other enzyme transcripts involved with neuropeptide processing are identified along with their tissue and life stage expression patterns.
|Item Type:||Refereed Article|
|Keywords:||adipokinetic hhormone/corazonin-like peptide, neuropeptide, decapod, prohormone convertase|
|Research Division:||Agricultural, Veterinary and Food Sciences|
|Research Group:||Fisheries sciences|
|Objective Division:||Animal Production and Animal Primary Products|
|Objective Group:||Fisheries - aquaculture|
|Objective Field:||Aquaculture rock lobster|
|UTAS Author:||Fitzgibbon, QP (Associate Professor Quinn Fitzgibbon)|
|UTAS Author:||Smith, GG (Professor Gregory Smith)|
|Funding Support:||Australian Research Council (IH190100014)|
|Deposited By:||Fisheries and Aquaculture|
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