Oxidative stress response and programmed cell death guided by NAC013 modulate pithiness in radish taproots.

ABSTRACT: Radish, Raphanus sativus L., is an important root crop that is cultivated worldwide. Owing to its evolutionary proximity to Arabidopsis thaliana, radish can be used as a model root crop in research on the molecular basis of agronomic traits. Pithiness is a significant defect that reduces the production of radish with commercial value; however, traditional breeding to eliminate this trait has thus far been unsuccessful. Here, we performed transcriptomics and genotype-by-sequencing (GBS)-based quantitative trait locus (QTL) analyses of radish inbred lines to understand the molecular basis of pithiness in radish roots. The transcriptome data indicated that pithiness likely stems from the response to oxidative stress, leading to cell death of the xylem parenchyma during the root-thickening pro

SUBMITTER: Hoang NV 

PROVIDER: S-EPMC9298717 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature