Characterization and diagnostic marker for TTG1 regulating tannin and anthocyanin biosynthesis in faba bean.

ABSTRACT: Condensed tannins, found in coloured-flowering varieties of faba bean (Vicia faba L) are, after vicine and convicine, one of the major anti-nutritional factors for monogastric animals. The development of tannin-free cultivars is a key goal in breeding to broaden the use of this legume in the animal feed industry. Two recessive genes, zt-1 and zt-2, control the zero-tannin content and promote white-flowered plants. Previous studies exploiting synteny with the model Medicago truncatula reported a mutation in TTG1, a gene encoding a WD40 transcription factor located in chromosome II, as the responsible for the zt-1 phenotypes. Here a comprehensive analysis of VfTTG1 (including phylogenetic relationships, gene structure and gene expression) has been conducted to confirm the identity of the gen

SUBMITTER: Gutierrez N 

PROVIDER: S-EPMC6838129 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature