Metabolome and transcriptome analyses of the molecular mechanisms of flower color mutation in tobacco.

ABSTRACT:

Background

Anthocyanins determinate the flower color of many plants. Tobacco is a model plant for studying the molecular regulation of flower coloration. We investigated the mechanism underlying flower coloration in tobacco by profiling flavonoid metabolites,expression of anthocyanin biosynthetic structural genes and their regulator genes in the pink-flowered tobacco cultivar Yunyan 87 and white-flowered Yunyan 87 mutant.

Result

Significant down-accumulation of anthocyanins, including cyanidin 3-O-glucoside, cyanin, cyanidin 3-O-rutinoside, pelargonidin 3-O-beta-D-glucoside, cyanidin O-syringic acid, pelargonin, and pelargonidin 3-O-malonylhexoside (log₂ fold change < - 10), endowed the flower color mutation in Yunyan 87 mutant. Transcriptome analysis showed that

SUBMITTER: Jiao F 

PROVIDER: S-EPMC7487631 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature