Characterization of the F Locus Responsible for Floral Anthocyanin Production in Potato.

ABSTRACT: Anthocyanins are pigmented secondary metabolites produced via the flavonoid biosynthetic pathway and play important roles in plant stress responses, pollinator attraction, and consumer preference. Using RNA-sequencing analysis of a cross between diploid potato (Solanum tuberosum L.) lines segregating for flower color, we identified a homolog of the ANTHOCYANIN 2 (AN2) gene family that encodes a MYB transcription factor, herein termed StFlAN2, as the regulator of anthocyanin production in potato corollas. Transgenic introduction of StFlAN2 in white-flowered homozygous doubled-monoploid plants resulted in a recovery of purple flowers. RNA-sequencing revealed the specific anthocyanin biosynthetic genes activated by StFlAN2 as well as expression differ

SUBMITTER: Laimbeer FPE 

PROVIDER: S-EPMC7534420 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature