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CRISPR/Cas9‐mediatededitingof1‐aminocyclopropane‐1‐carboxylateoxidase1(ACO1)enhancesPetuniaflowerlongevity

Firstauthor:JunpingXu;Affiliations:KyungpookNationalUniversity(庆北国立大学):Daegu,SouthKorea

Correspondingauthor:ChangKilKim

Thegenesthatencodetheethylenebiosynthesisenzyme1‐aminocyclopropane‐1‐carboxylateoxidase(ACO)arethoughttobeinvolvedinflowersenescence.Hence,weinvestigatedwhetherthetranscriptlevelsofPhACOgenes(PhACO1,PhACO3,andPhACO4)inPetuniacv.MirageRoseareassociatedwithethyleneproductionatdifferentfloweringstages.Hightranscriptlevelsweredetectedinthelatefloweringstageandlinkedtohighethylenelevels.PhACO1wassubsequentlyeditedusingtheCRISPR/Cas9systemanditsroleinethyleneproductionwasinvestigated.PhACO1‐editedT0mutantlines,regardlessofmutanttype(homozygousormonoallelic),exhibitedsignificantlyreducedethyleneproductionandenhancedflowerlongevity



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