Patent ID: 7164006

Claim:
An isolated RRB polypeptide that is selected from the group of polypeptides consisting of a) SEQ ID NO: 2, b) a polypeptide encoded by a polynucleotide comprising SEQ ID NO: 1, c) a polypeptide encoded by a polynucleotide comprising SEQ ID NO: 9, d) a polypeptide encoded by a polynucleotide selected from the group of polynucleotides that hybridize under highly stringent conditions with SEQ ID NO: 1, e) a polypeptide encoded by a polynucleotide selected from the group of polynucleotides that hybridize under highly stringent conditions with SEQ ID NO: 9, and f) a polypeptide encoded by a polynucleotide selected from the group of polynucleotides that hybridize under highly stringent conditions with a polynucleotide that encodes SEQ ID NO: 2, and wherein said highly stringent hybridization conditions comprise hybridization in 40% formamide, 1 M NaCl concentration, 1% SDS at 37 deg C. and followed by at least one wash in 0.2×SSC at 60 deg C. for 20 minutes; wherein said RRB polypeptide, when expressed in a transgenic plant, causes attenuation of shoot and root apical meristem function.