Process for selectively producing male or female stereotypes

摘要

"PROCESS FOR SELECTIVELY PRODUCING STERILE MALE OR FEMALE PLANTS". The present invention relates to a process for producing sterile male or female plants comprising the steps of transforming plant material with a polynucleotide encoding at least one enzyme that reacts with a non-phytotoxic substance to produce a phytotoxic substance, and regenerating the material thus transformed into a plant, wherein said non-phytotoxic substance is applied to the plant until the period of formation of male or female gametes and / or maturation, so that the non-phytotoxic substance causes the production of a phytotoxic substance which avoids selectively the formation of or otherwise renders said gametes non-functional, wherein the enzyme is expressed preferentially in both male and female reproductive structures, characterized in that (i) the non-phytotoxic substance is selected from the group consisting of ester derivatives of non-phosphonate herbicides, which herbicides are directly phytotoxic to non-green tissue, D-alpha amino acids, non-protein D-alpha amino acid peptide derivatives, aryloxyphenoxypropionate senantiomers and S-enantiomers of aryloxyphenoxypropionate ester derivatives and (ii) the enzyme is selected from the group consisting of carboxylesterases, D amino acid oxidases, D-amino acid dehydrogenases, D-amino acid racemases, 2-arylpropionyl-CoA epimerases, alpha-methylac-CoA racemases, thiesterases and acyl-CoA synthetases.