Modulation of auxin-binding protein 1 gene expression in maize and the teosintes by transposon insertions in its promoter.

Abstract excerpt

Auxin plays crucial roles in plant development. Auxin-binding protein 1 (ABP1) is an auxin receptor required to coordinate cell division and expansion during postembryonic shoot development, and differential auxin responses during root growth. While ABP1 is encoded by a single gene in maize, multiple gene copies exist in teosinte, the wild relatives of maize. We have previously shown that some of the differences...

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