Patent ID: 7696405
Filing Date: 2010-04-13
Classification: A01H,C12N

Abstract:
1. A method of maintaining a male-sterile plant, comprising crossing the male sterile plant with a maintainer plant to produce a progeny plant, wherein the male sterile plant, the maintainer plant, and the progeny plant comprise a homozygous recessive genotype for male sterility; and wherein the maintainer plant comprises a hemizygous restoring transgene construct comprising (i) a first polynucleotide comprising a functional copy of a gene that complements the homozygous recessive genotype; and (ii) a second polynucleotide encoding a gene product which inhibits the formation, function, or dispersal of male gametes of the maintainer plant, by interfering with the normal accumulation of starch in pollen, wherein said second polynucleotide encodes alpha-amylase.