The loss of function of HEL, which encodes a cellulose synthase interactive protein, causes helical and vine-like growth of tomato.

ABSTRACT: Helical growth is an economical way for plant to obtain resources. The classic microtubule-microfibril alignment model of Arabidopsis helical growth involves restriction of the appropriate orientation of cellulose microfibrils appropriately in the cell walls. However, the molecular mechanism underlying tomato helical growth remains unknown. Here, we identified a spontaneous tomato helical (hel) mutant with right-handed helical cotyledons and petals but left-handed helical stems and true leaves. Genetic analysis revealed that the hel phenotype was controlled by a single recessive gene. Using map-based cloning, we cloned the HEL gene, which encodes a cellulose interacting protein homologous to CSI1 of Arabidopsis. We identified a 27 bp fragment replacement that generated a premature stop cod

SUBMITTER: Yang Q 

PROVIDER: S-EPMC7603515 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature