Nucleic acid encoding GAI gene of Arabidopsis thaliana
AssigneePioneer Hi-Bred International, Inc.
InventorsNicholas P. Harberd, Jinrong Peng, Pierre Carol, Donald E. Richards
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Abstract
The GAI gene of Arabidopsis thaliana has been cloned, along with mutant and homologue gene sequences. Expression of such genes in plants affects characteristics of the plants including growth. GAI expression inhibits growth of plants, which inhibition is antagonised by gibberellin (GA). Expression of gai mutants confers a dwarf phenotype which is GA-insensitive. Manipulation of expression of GAI and gai genes in plants results in tall or dwarfed plants. Dwarf plants are useful in particular for reduction in crop losses resulting from lodging.
Claims17
An isolated nucleic acid having a nucleotide sequence coding or a polypeptide which comprises the amino acid sequence shown in FIG. 4 (SEQ ID NO:2), except that the polypeptide does not contain the 17 amino acid sequence underlined in FIG. 4
- wherein said nucleic acid confers gibberlin insensitive dwarfism when expressed in a transgenic plant.
An isolated nucleic acid having a nucleotide sequence coding or a polypeptide of which the amino acid sequence has at least 95% amino acid sequence identity with the amino acid sequence shown in FIG. 4 (SEQ ID NO:2) except that the polypeptide does not contain the 17 amino acid sequence underlined in FIG. 4
- wherein expression of said isolated nucleic acid in a plant confers a phenotype on the plant which is gibberlin-unresponsive dwarfism.
Dependencies are inferred from the claim text.