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A Survey of Genome Size Diversity Within Scale Insects (Hemiptera: Coccoidea) and Cockroaches and Termites (Blattodea)

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Title: A Survey of Genome Size Diversity Within Scale Insects (Hemiptera: Coccoidea) and Cockroaches and Termites (Blattodea)
Author: Kelly, Darren
Department: Department of Integrative Biology
Program: Integrative Biology
Advisor: Gregory, Ryan
Abstract: This thesis is an investigation of the genome size diversity present within two diverse insect groups: the hemipteran superfamily Coccoidea (scale insects) and the order Blattodea (cockroaches and termites). Data have previously been lacking for these two groups, even though both present some intriguing potential patterns of genome size diversity related to unique aspects of their biology. More than 140 species from the two groups were estimated for genome size using Feulgen Image Analysis Densitometry (FIAD). Coccoidean genome sizes ranged from 0.15pg-2.1pg (n=62 species) while blattodeans ranged from 0.58pg-9.58pg (n=70 species). These data were then correlated with organismal traits related to ecology, morphology, metamorphosis, and reproduction. Genome size was found to be most strongly related to body size and geographic range size in scale insects and to the evolution of sociality in blattodeans.
Date: 2018-05
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