The present disclosure provides methods, recombinant DNA molecules, recombinant host cells containing the DNA molecules, and transgenic plant cells, plant tissue and plants which contain and express at least one antisense or interference RNA specific for a thiamine biosynthetic coding sequence or a thiamine...http://www.google.com/patents/US7667096?utm_source=gb-gplus-sharePatent US7667096 - Conditional sterility in plants
