Fig. 1. blr mutant phenotype. (A) Wild-type Landsberg erecta and (B) blr-1 mutant plants. blr has additional leaves and flowers, is reduced in stature and has precocious outgrowth of axillary meristems. Phyllotaxy is also disturbed. (C) In the wild-type inflorescence siliques are arranged in a regular spiral phyllotactic pattern. (D) In blr mutant inflorescences siliques occur in aberrant positions and internodes are irregular.

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