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Alterations in Hox gene expression patterns have been implicated in both large and small-scale morphological evolution. An improved understanding of these changes requires a detailed understanding of Hox gene cis-regulatory function and evolution. cis-regulatory evolution of the Hox gene Ultrabithorax (Ubx) has been shown to contribute to evolution of trichome patterns on the posterior second femur...
The developmental mechanisms that regulate the relative size and shape of organs have remained obscure despite almost a century of interest in the problem and the fact that changes in relative size represent the dominant mode of evolutionary change. Here, I investigate how the Hox gene Ultrabithorax (Ubx) instructs the legs on the third thoracic segment of Drosophila melanogaster to develop with a...
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