IiWRKY34 positively regulates yield, lignan biosynthesis and stress tolerance in Isatis indigotica.

ABSTRACT: Yield potential, pharmaceutical compounds production and stress tolerance capacity are 3 classes of traits that determine the quality of medicinal plants. The autotetraploid Isatis indigotica has greater yield, higher bioactive lignan accumulation and enhanced stress tolerance compared with its diploid progenitor. Here we show that the transcription factor IiWRKY34, with higher expression levels in tetraploid than in diploid I. indigotica, has large pleiotropic effects on an array of traits, including biomass growth rates, lignan biosynthesis, as well as salt and drought stress tolerance. Integrated analysis of transcriptome and metabolome profiling demonstrated that IiWRKY34 expression had far-reaching consequences on both primary and secondary metabolism, repr

SUBMITTER: Xiao Y 

PROVIDER: S-EPMC7745056 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature