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PMID: 17962563 Published · ppublish English Journal Article Research Support, U.S. Gov't, Non-P.H.S.

Changes in regulation of a transcription factor lead to autogamy in cultivated tomatoes.

Science (New York, N.Y.) ·Vol. 318 ·No. 5850 ·2007-10-26 ·Pages 643-5

Chen KY, Cong B, Wing R, Vrebalov J, Tanksley SD

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.

MeSH Terms
Amino Acid Sequence Base Sequence Biological Evolution Chromosome Mapping Cloning, Molecular Crosses, Genetic Down-Regulation Flowers/anatomy & histology,genetics,growth & development Genes, Plant Genotype Helix-Loop-Helix Motifs Lycopersicon esculentum/anatomy & histology,genetics,physiology Molecular Sequence Data Plant Proteins/chemistry,genetics,metabolism Pollen/physiology Promoter Regions, Genetic Quantitative Trait Loci Reproduction Sequence Deletion Transcription Factors/chemistry,genetics,metabolism Transformation, Genetic
Chemicals
Plant Proteins Transcription Factors
Authors & Affiliations
5 authors, click to expand affiliations / ORCID
Chen Kai-Yi
Department of Plant Breeding and Genetics, Cornell University, Ithaca, NY 14853, USA.
Cong Bin
Wing Rod
Vrebalov Julia
Tanksley Steven D
Article Info
Journal
Science (New York, N.Y.)
Abbr.
Science
ISSN
1095-9203
DOI
10.1126/science.1148428
Published
2007-10-26
Pages
643-5
Language
English
Region
United States
NLM ID
0404511
Subset
IM
External Links
PubMed source DOI: 10.1126/science.1148428 View journal details
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