Donald W Pyle

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The aristae of Drosophila have been shown to play a role in mating behavior and geotaxis. Two populations of D. melanogaster were selected for increased and decreased numbers of major aristal branches. Selection was successful and resulted in two lines differing by an average of six aristal branches. Hybridization analyses of selected lines revealed that(More)
During characterization of the Netrin locus, we uncovered a background maternal effect mutation in which a small number of presumptive mesoderm cells fail to express the mesoderm determinant twist (twi). In contrast to twi mutants in which the mesoderm cells adopt alternative cell fates, the affected cells did not appear to differentiate. The cells failed(More)
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