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Evolution of genome size in bats (Mammalia: chiroptera)

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dc.contributor.advisor Gregory, T.R.
dc.contributor.author Smith, Jillian Dinah Leigh
dc.date.accessioned 2021-07-21T14:17:05Z
dc.date.available 2021-07-21T14:17:05Z
dc.date.copyright 2009
dc.identifier.uri https://hdl.handle.net/10214/26091
dc.description.abstract This thesis concerns genome evolution in mammals, using the order Chiroptera to test hypotheses concerning the influence of biological traits on genome size. In 164 species of bats, genome size varied from 1.63 pg in ' Lophostoma carrikeri' to 3.17 pg in 'Rhinopoma hardwickii', averaging 2.35 pg ± 0.02SE. 43 estimates represented species from the previously unstudied family Pteropodidae ("megabats"). Consistent with previous hypotheses on genome evolution in bats (and flying vertebrates), bats have constrained genomes relative to other mammals, implying a link between genome size and the origins of flight. Surprisingly, megabats have even more highly constrained genomes than microbats. However, unlike patterns observed in avian species, bats did not show any relationships between genome size and metabolism, or flight-related characteristics. Rather, body size (or some other trait relating to it) seems to be a more relevant biological factor explaining the current extent of genome size variation in bats.
dc.language.iso en
dc.subject genome size
dc.subject bats
dc.subject Chiroptera
dc.subject biological traits
dc.subject origins of flight
dc.title Evolution of genome size in bats (Mammalia: chiroptera)
dc.type Thesis
dc.degree.name Master of Science
dc.degree.department Department of Zoology
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