Please use this identifier to cite or link to this item: https://doi.org/10.1002/pmic.200500591
Title: Proteomics profiling of epidermal mucus secretion of a cichlid (Symphysodon aequifasciata) demonstrating parental care behavior
Authors: Chong, K.
Joshi, S. 
Jin, L.T.
Shu-Chien, A.C.
Keywords: Discus fish
Mucus
Parental-care
Symphysodon aequifasciata
Issue Date: Apr-2006
Citation: Chong, K.,Joshi, S.,Jin, L.T.,Shu-Chien, A.C. (2006-04). Proteomics profiling of epidermal mucus secretion of a cichlid (Symphysodon aequifasciata) demonstrating parental care behavior. Proteomics 6 (7) : 2251-2258. ScholarBank@NUS Repository. https://doi.org/10.1002/pmic.200500591
Abstract: The discus fish (Symphysodon aequifasciata) is a cichlid demonstrating advanced mode of parental care towards fry. Both male and female fish utilized epidermal mucus secreted from specialized epidermal cells to feed developing fry. We utilized proteomics to compare protein profile from parental and nonparental fish. Gel analysis revealed a total of 35 spots that were up-regulated in parental mucus. In tandem, another 18 spots were uniquely expressed in parental mucus. MS analysis of these spots identified proteins such as fructose biphosphate aldolase, nucleoside diphosphate kinase, and heat shock proteins, which are essential to support energy provision, cell repair and proliferation, stress mediation, and defense mechanism in parental fish during parental-care period. Concurrently, the detection of several antioxidant-related proteins such as thioredoxin peroxidase and hemopexin suggests a need to overcome oxidative stress during hypermucosal production in parental-care behavior. A C-type lectin was also found to be uniquely expressed in parental mucus and could have important role in providing antimicrobial defense to both parental fish and fry. In summary, our study shows that discus mucus proteome undergoes changes in protein expression during parental-care period. © 2005 Wiley-VCH Verlag GmbH & Co. KGaA.
Source Title: Proteomics
URI: http://scholarbank.nus.edu.sg/handle/10635/101489
ISSN: 16159853
DOI: 10.1002/pmic.200500591
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