Related Experiment Video
Updated: Jul 10, 2026

Chromatin Immunoprecipitation Assay for the Identification of Arabidopsis Protein-DNA Interactions In Vivo
Published on: January 14, 2016
Changes in regulation of a transcription factor lead to autogamy in cultivated tomatoes
Kai-Yi Chen1, Bin Cong, Rod Wing
1Department of Plant Breeding and Genetics, Cornell University, Ithaca, NY 14853, USA.
Abstract:
We report the cloning of Style2.1, the major quantitative trait locus responsible for a key floral attribute (style length) associated with the evolution of self-pollination in cultivated tomatoes. The gene encodes a putative transcription factor that regulates cell elongation in developing styles. The transition from cross-pollination to self-pollination was accompanied, not by a change in the STYLE2.1 protein, but rather by a mutation in the Style2.1 promoter that results in a down-regulation of Style2.1 expression during flower development.
Related Concept Videos
Combinatorial Gene Control
The expression of more than 30,000 genes is controlled by approximately 2000-3000 transcription factors. This is possible because a single transcription factor can recognize more than one regulatory sequence. The specificity in gene...
Gene Regulation During Sporulation
Master Transcription Regulators
Master Transcription Regulators
Cis-regulatory Sequences
Monohybrid Crosses

