THE MAIZE MUTANT BARREN STALK1 IS DEFECTIVE IN AXILLARY MERISTEM DEVELOPMENT
2002
barren stalk1 is a recessive mutant of maize that has no tassel branches, spikelets, tillers, or ears. Here we present a detailed characterization of the ba1 mutant phenotype, including scanning electron microscopy of developing inflorescences, in situ hybridization analysis using a meristem marker, molecular mapping, and genetic analysis demonstrating an epistatic relationship between ba1 and teosinte branched1 (tb1). These data show that the primary defect in the ba1 mutant is a failure in axillary meristem development.
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