Title

Genetics of Larval Heart Rate in Drosophila melanogaster

Document Type

Thesis

Publication Date

2006

Advisor

Rodell, Biology

Abstract

In order to assess the genetic influence of larval heart rate in Drosophila, I have examined the characteristic mean heart rates of five strains, analyzed the outcomes of all possible interstrain crosses, and estimated heritability of heart rate in specific parent-offspring relationships. I show that significant differences that exist among strains and that larval rates of offspring have evidence of maternal, dominant, and additive genetic effects. I further show that heritability is positive for each strain. Based on these results, I assert that there are several types of genetic effects influencing inheritance of heart rate in natural populations of Drosophila melanogaster and that there exists significant genetic variability of this character.

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