GENETIC COVARIATION BETWEEN EMBRYONIC DEVELOPMENTAL RATE AND PRECOCIOUS MATURATION IN RAINBOW TROUT (ONCORHYNCHUS MYKISS)

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GENETIC COVARIATION BETWEEN EMBRYONIC DEVELOPMENTAL RATE AND PRECOCIOUS MATURATION IN RAINBOW TROUT (ONCORHYNCHUS MYKISS)

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dc.contributor.advisor Danzmann, Roy
dc.contributor.advisor Ferguson, Moira
dc.contributor.author Richardson, Colin
dc.date 2009-08-26
dc.date.accessioned 2011-09-13T15:02:45Z
dc.date.available 2011-09-13T15:02:45Z
dc.date.issued 2011-09-13
dc.identifier.uri http://hdl.handle.net/10214/2977
dc.description.abstract Co-variation in the genetic architecture, and co-localization of quantitative trait loci (QTL), for embryonic developmental rate and age at maturation in male rainbow trout (Oncorhynchus mykiss) was examined. Two lots (September and December spawning) of 2 x 5 (male x female) diallel crosses were performed and the resulting progeny were raised to maturity. Higher incidences of precocious maturation were observed in the September lot fish compared to December lot fish, which was uncoupled to developmental rate. However, precocious maturation and body size was higher in early hatching December lot fish. A genome scan was also completed across 4 linkage groups previously reported to possess embryonic developmental rate QTL and/or age at maturation QTL. No evidence of co-localization of QTL for the two traits was detected. However, the presence of QTL for embryonic developmental rate on RT-8 and RT-24 and one for age at maturation on RT-17 supports previous results. en_US
dc.language.iso en en_US
dc.subject embryonic developmental rate en_US
dc.subject precocious maturation en_US
dc.subject Quantitative Trait Loci en_US
dc.subject rainbow trout en_US
dc.title GENETIC COVARIATION BETWEEN EMBRYONIC DEVELOPMENTAL RATE AND PRECOCIOUS MATURATION IN RAINBOW TROUT (ONCORHYNCHUS MYKISS) 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


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