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Creators/Authors contains: "Kholwadwala, Akhil"

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  1. ; ; ; ; ; (, Proceedings of the National Academy of Sciences)
    Understanding how morphology evolves requires identifying the types of mutations that contribute to changes in development. We integrated comparative genomics and transcriptomics to reconstruct the evolution and regulation offollistatinparalogs in relation to the evolution of aphid winged and wingless morphs. We find that different pea aphidfollistatinduplicates play an essential molecular role in both the male and female wing dimorphisms, linking the genetic and environmental control of morph determination in each sex, respectively. We also find that an ancestralfollistatingene likely had multiple promoters and that thefollistatinduplicates that evolved wingless-specific expression retained only the ancestral wingless-specific promoter. Our work provides a roadmap for how alternative promoter usage and subsequent gene duplication can enable the evolution of animal form. 
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    Free, publicly-accessible full text available February 25, 2026