Pod shatter resistance in oilseed rape through reduced gibberellin synthesis

Lead Research Organisation: John Innes Centre
Department Name: Crop Genetics


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Description We identified four prologues of the gibberellin biosynthesis gene, GA3OX1 in oilseed rape. We identified an allelic series of mutations in all genes using an oilseed rape TILLING population. We grew promising mutants to single-mutant homozygosity and made crosses to generate combinations of mutants.
Exploitation Route We are continuing to bring the mutant combinations to homozygosity and are characterising the phenotypes with respect to pod shatter resistance. We are in contact with breeding companies who are interested in the approach and the resulting lines.
Sectors Agriculture, Food and Drink

Description Based on a previous project, we have identified the Arabidopsis gene, GA3OX1 (gibberellin biosynthesis gene) as important for efficient seed dispersal. We identified the mechanism by which gibberellin mediates degradation of DELLA repressor to de-repress the ALC transcription factor, which is a positive regulator of pod shatter.
Sector Agriculture, Food and Drink
Impact Types Economic