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Comparative distribution of a putative egg-laying hormone in neural and reproductive tissues of four Decapoda crustaceans
journal contribution
posted on 2009-03-01, 00:00 authored by Z Liu, John DonaldJohn Donald, Peter Hanna, P Nuurai, P SobhonEvidence for the presence of a putative egg-laying (ELH) hormone has been previously described in the black tiger shrimp, Penaeus monodon, so a further investigation was carried out to detect its presence in a range of Decapoda crustaceans prior to a full molecular analysis. The crustaceans were represented by the Australian fresh water yabbie, Cherax destructor, the Australian southern rock lobster, Jasus edwardsii, the snow crab, Chionoecetes opilio, and the blue swimmer crab, Portunus pelagicus. Female cerebral ganglia, ventral nerve cords and gonads were investigated in a comparative study of the distribution of the immunoreactive hormone using immunoenzyme and immunofluorescence techniques. Immunoreactivity was detected in all tissues of interest, and the distribution patterns showed similarity within the four species, as well as that of P. monodon reported in the earlier study. There were minor variations. These data indicate that a putative ELH-like neuropeptide is widespread in crustaceans, and supports its previous identification in a range of molluscs and other invertebrates. Elucidation of the molecular structure of the peptide hormone and its encoding gene, as well as its involvement in spawning behaviour of crustaceans, is now fully under investigation.
History
Journal
Invertebrate neuroscienceVolume
9Issue
1Pagination
21 - 28Publisher
Springer Berlin / HeidelbergLocation
Berlin, GermanyPublisher DOI
ISSN
1354-2516eISSN
1439-1104Language
engPublication classification
C1 Refereed article in a scholarly journalCopyright notice
2009, Springer-VerlagUsage metrics
Categories
Keywords
egg-laying like hormoneDecapoda crustaceansimmunohistochemistryneurosecretory cellsovaryoocytesScience & TechnologyLife Sciences & BiomedicineNeurosciencesNeurosciences & NeurologyHALIOTIS-RUBRA LEACHLYMNAEA-STAGNALISPENAEUS-MONODONAPLYSIA-CALIFORNICAABDOMINAL-GANGLIONGENE FAMILYEXPRESSIONEYESTALKCELLSIDENTIFICATIONZoology
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