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The evolution of behaviour : a genetic approach
Item metadata
dc.contributor.advisor | Ritchie, Michael G. | |
dc.contributor.author | Parker, Darren J. | |
dc.coverage.spatial | [24], 187 p. | en_US |
dc.date.accessioned | 2015-06-03T15:30:25Z | |
dc.date.available | 2015-06-03T15:30:25Z | |
dc.date.issued | 2015-06-24 | |
dc.identifier.uri | https://hdl.handle.net/10023/6744 | |
dc.description.abstract | In this thesis I investigated the genetic basis of several behaviours to answer questions surrounding the evolution and mechanistic basis of behaviour. Firstly, I took a single-gene approach to investigate the influence of fruitless (fru) on the courtship behaviour of Drosophila. fru is an alternatively-spliced transcription factor that is necessary for the production of male sexual behaviours, and has also been implicated in producing species-specific differences in courtship song. I investigated the patterns of selection acting on fru at the sequence level and found that positive selection was restricted to the alternatively spliced exons of fru. From this I hypothesised that the positively selected changes in fru would contribute to species-specific differences in courtship song. To test this I examined how isoform-specific fru loss-of-function mutants influence courtship song, and generated “species-swapped” flies whereby regions of fru that showed evidence for positive selection were transferred from four species of Drosophila, into D. melanogaster. Contrary to prediction, I found flies that lacked isoforms containing positively selected regions did not show any differences in courtship song. Unfortunately “species-swapped” flies were not generated in time to examine phenotypes and neuroanatomy as intended. Next, I examined the genetic basis of cold acclimation in two species of Drosophila using a transcriptomic approach. I found that the genes differentially expressed in response to cold acclimation were largely different in each of the species; however, the biological processes they were involved in were broadly similar. Finally, I investigated the transcriptomic changes associated with parental care in the burying beetle Nicrophorus vespilloides to determine if males and females alter the genes they express when parenting alone versus with a partner. I found that males greatly reduced their transcriptional response when parenting with a partner, suggesting they reduce the care they provide when present with a female. | en_US |
dc.language.iso | en | en_US |
dc.publisher | University of St Andrews | |
dc.subject | Evolution | en_US |
dc.subject | Behaviour | en_US |
dc.subject | Genetics | en_US |
dc.subject | Drosophila | en_US |
dc.subject | Nicrophorus | en_US |
dc.subject.lcc | QL537.D76P2 | |
dc.subject.lcsh | Drosophila--Behavior--Genetic aspects | en_US |
dc.subject.lcsh | Drosophila--Behavior--Evolution | en_US |
dc.subject.lcsh | Courtship in animals | en_US |
dc.subject.lcsh | Burying beetles | en_US |
dc.title | The evolution of behaviour : a genetic approach | en_US |
dc.type | Thesis | en_US |
dc.contributor.sponsor | Natural Environment Research Council (NERC) | en_US |
dc.type.qualificationlevel | Doctoral | en_US |
dc.type.qualificationname | PhD Doctor of Philosophy | en_US |
dc.publisher.institution | The University of St Andrews | en_US |
dc.rights.embargodate | 2021-05-19 | en_US |
dc.rights.embargoreason | Thesis restricted in accordance with University regulations. Print and electronic copy restricted until 19th May 2021 | en_US |
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