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127748.0 [No comment] 23.05.2011 13:20 Released

ID: 127748.0, MPI für Pflanzenzüchtungsforschung / Dept. Plant Breeding and Yield Physiology (Francesco Salamini)
The tomato Blind gene encodes a MYB transcription factor that controls the formation of lateral meristems
Authors:Schmitz, G.; Tillmann, E.; Carriero, F.; Fiore, C.; Cellini, F.; Theres, K.
Date of Publication (YYYY-MM-DD):2002-01-22
Title of Journal:Proceedings of the National Academy of Sciences of the United States of America
Journal Abbrev.:Proc. Natl. Acad. Sci. U. S. A.
Issue / Number:2
Start Page:1064
End Page:1069
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:The multitude of forms observed in flowering plants is largely because of their ability to establish new axes of growth during postembryonic development. This process is initiated by the formation of secondary meristems that develop into vegetative or reproductive branches. In the blind and torosa mutants of tomato, initiation of lateral meristems is blocked during shoot and inflorescence development, leading to a strong reduction in the number of lateral axes. In this study, it is shown that blind and torosa are allelic. The Blind gene has been isolated by positional cloning, and it was found that the mutant phenotype is caused by a loss of function of an R2R3 class Myb gene. RNA interference-induced blind phenocopies confirmed the identity of the isolated gene. Double mutant analysis shows that Blind acts in a novel pathway different from the one to which the previously identified Lateral suppressor gene belongs. The findings reported add a new class of transcription factors to the group of genes controlling lateral meristem initiation and reveal a previously uncharacterized function of R2R3 Myb genes.
External Publication Status:published
Document Type:Article
Communicated by:N.N.
Affiliations:MPI für Pflanzenzüchtungsforschung
External Affiliations:Max Planck Inst Plant Breeding Res, Carl Von Linne Weg 10, D-; 50829 Cologne, Germany; Max Planck Inst Plant Breeding Res, D-50829 Cologne, Germany; Univ Cologne, Inst Genet, D-50931 Cologne, Germany; Metapontum Agrobios, I-75010 Metaponto, Italy
Identifiers:ISI:000173450100094 [ID No:1]
ISSN:0027-8424 [ID No:2]