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Wilfrid Laurier University Leaf
October 25, 2016
Canadian Excellence

Tristan A.F. Long


email: Tristan A.F. Long
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Tristan A.F. Long

Estimating the heritability of adult female fitness in a locally adapted Drosophila melanogaster population. Journal of Evolutionary Biology. 22: 637-643.

T.A.F. Long, P.M. Miller, A.D. Stewart and W.R. Rice

published: 2009 | Research publication | Tristan A.F. Long

The heritability of genome-wide fitness that is expected in finite populations is poorly understood, both theoretically and empirically, despit its relevance to many fundamental concepts in evolutionary biology. In this study, we used two independent methds of estimating the heritability of lifetime female fecundity (the predominant female fitness component in this population) in a large, outbred population of Drosophila melanogaster that had adapted to the laboratory environment for over 400 generations. Despite strong directional selection on adult female fecundity, we uncovered high heritability for this trait that cannot be explained by antogonitic pleiotropy with juvenile fitness. The evolutionary significance of this high heritability of lifetime fecundity is discussed.

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revised Dec 15/10

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