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Plant height has long been an important agronomic trait in maize breeding. Many plant height QTLs have been reported, but few of these have been cloned. In this study, a major plant height QTL, qph1, was mapped to a 1.6kb interval in Brachytic2 (Br2) coding sequence on maize chromosome 1. A naturally occurring rare SNP in qph1, which resulted in an amino(More)
Asymmetric auxin distribution caused by polar auxin transport (PAT) regulates many plant developmental and physiological processes. Plant two closely ABC (ATP-binding cassette) transporter, AtPGP1 and AtPGP19 (AtMDR1), have been implicated in auxin transport. However, unlike atpgp19 mutant and atpgp1 atmdr1 double mutant show decreased apical dominance,(More)
Gene-background interaction is a commonly observed phenomenon in many species, but the molecular mechanisms of such an interaction is less well understood. Here we report the cloning of a maize mutant gene and its modifier. A recessive mutant with a virescent yellow-like (vyl) phenotype was identified in an ethyl methanesulfonate-mutagenized population(More)
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