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Evolution. 1997 Aug;51(4):1156-1163. doi: 10.1111/j.1558-5646.1997.tb03963.x.

QUANTITATIVE GENETICS OF OVARIOLE NUMBER IN DROSOPHILA MELANOGASTER. I. SEGREGATING VARIATION AND FITNESS.

Evolution; international journal of organic evolution

Marta L Wayne, J Brant Hackett, Trudy F C Mackay

Affiliations

  1. 3513 Gardner Hall, Department of Genetics, North Carolina State University, Raleigh, North Carolina, 27695-7614.

PMID: 28565484 DOI: 10.1111/j.1558-5646.1997.tb03963.x

Abstract

The number of ovarioles of the Drosophila melanogaster ovary is a trait thought to be associated with female fecundity, and therefore is expected to be under strong natural selection. This hypothesis may be tested by examining patterns of genetic and environmental variation for ovariole number in natural populations, and by determining the association between ovariole number and fitness in isogenic lines derived from a natural population. We measured ovariole number, and competitive fitness and its components, for 48 homozygous chromosome 3 substitution lines in a standard inbred background; and body size in a sample of 15 chromosome 3 substitution lines. We found significant segregating genetic variation for ovariole number, with a broad-sense heritability (H

© 1997 The Society for the Study of Evolution.

Keywords: Drosophila melanogaster; ovariole; variation

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