The Theobroma cacao B3 domain transcription factor TcLEC2 plays a duel role in control of embryo development and maturation.

ABSTRACT:

Background

The Arabidopsis thaliana LEC2 gene encodes a B3 domain transcription factor, which plays critical roles during both zygotic and somatic embryogenesis. LEC2 exerts significant impacts on determining embryogenic potential and various metabolic processes through a complicated genetic regulatory network.

Results

An ortholog of the Arabidopsis Leafy Cotyledon 2 gene (AtLEC2) was characterized in Theobroma cacao (TcLEC2). TcLEC2 encodes a B3 domain transcription factor preferentially expressed during early and late zygotic embryo development. The expression of TcLEC2 was higher in dedifferentiated cells competent for somatic embryogenesis (embryogenic calli), compared to non-embryogenic calli. Transient overexpression of TcLEC2 in immature zygotic embryos resulted in ch

SUBMITTER: Zhang Y 

PROVIDER: S-EPMC4021495 | biostudies-literature | 2014 Apr

REPOSITORIES: biostudies-literature