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Developmental plasticity and phenotypic flexibility in the oxygen sensing system of the amphibious fish Kryptolebias marmoratus

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dc.contributor.advisor Wright, Patricia
dc.contributor.author Cochrane, Paige
dc.date.accessioned 2020-12-18T21:39:54Z
dc.date.available 2020-12-18T21:39:54Z
dc.date.copyright 2020-12
dc.date.created 2020-11-25
dc.date.issued 2020
dc.identifier.uri https://hdl.handle.net/10214/23666
dc.description.abstract Proper development of the O2 sensing system is essential for survival, particularly in amphibious fishes that may encounter a wide range of environmental O2 levels. In this thesis, I investigated how environmental conditions during early life stages modulate the development of O2-sensitive chemoreceptors (neuroepithelial cells; NECs) and the scope for NEC flexibility in the amphibious mangrove rivulus (Kryptolebias marmoratus). NEC development in K. marmoratus was largely unaffected by environmental O2 availability during embryonic stages. However, exposure to fluctuating water-air conditions during larval and juvenile development altered the constitutive skin NEC phenotype, as well as the scope for NEC flexibility in the gills and skin of adults. Collectively, my findings suggest that the larval and/or juvenile stages may represent a critical period during which the development of the O2 sensing system and its capacity for phenotypic flexibility can be shaped by environmental conditions. en_US
dc.description.sponsorship Funding was provided by Natural Sciences and Engineering Research Council of Canada (NSERC) and Ontario Graduate scholarships to P.V.C. en_US
dc.language.iso en en_US
dc.publisher The Company of Biologists Ltd en_US
dc.subject neuroepithelial cells en_US
dc.subject early development en_US
dc.subject phenotypic plasticity en_US
dc.subject oxygen en_US
dc.title Developmental plasticity and phenotypic flexibility in the oxygen sensing system of the amphibious fish Kryptolebias marmoratus en_US
dc.type Thesis en_US
dc.degree.programme Integrative Biology en_US
dc.degree.name Master of Science en_US
dc.degree.department Department of Integrative Biology en_US
dc.rights.license All items in the Atrium are protected by copyright with all rights reserved unless otherwise indicated.
dcterms.relation Rossi, G. S., Cochrane, P. V., and Wright, P. A. (2020). Fluctuating environments during early development can limit adult phenotypic flexibility: Insights from an amphibious fish. Journal of Experimental Biology. 223. jeb228304. https://doi.org/10.1242/jeb.228304 en_US


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