CaltechAUTHORS
  A Caltech Library Service

A Genetic Screen for Modifiers of UFO Meristem Activity Identifies Three Novel FUSED FLORAL ORGANS Genes Required for Early Flower Development in Arabidopsis

Levin, Joshua Z. and Fletcher, Jennifer C. and Chen, Xuemei and Meyerowitz, Elliot M. (1998) A Genetic Screen for Modifiers of UFO Meristem Activity Identifies Three Novel FUSED FLORAL ORGANS Genes Required for Early Flower Development in Arabidopsis. Genetics, 149 (2). pp. 579-595. ISSN 0016-6731. PMCID PMC1460208. http://resolver.caltech.edu/CaltechAUTHORS:20161214-152551671

Full text is not posted in this repository. Consult Related URLs below.

Use this Persistent URL to link to this item: http://resolver.caltech.edu/CaltechAUTHORS:20161214-152551671

Abstract

In a screen to identify novel genes required for early Arabidopsis flower development, we isolated four independent mutations that enhance the Ufo phenotype toward the production of filamentous structures in place of flowers. The mutants fall into three complementation groups, which we have termed FUSED FLORAL ORGANS (FFO) loci. ffo mutants have specific defects in floral organ separation and/or positioning; thus, the FFO genes identify components of a boundary formation mechanism(s)acting between developing floral organ primordia. FFO1 and FFO3 have specific functions in cauline leaf/stem separation and in first- and third-whorl floral organ separation, with FFO3 likely acting to establish and FFO1 to maintain floral organ boundaries. FFO2 acts at early floral stages to regulate floral organ number and positioning and to control organ separation within and between whorls. Plants doubly mutant for two ffo alleles display additive phenotypes, indicating that the FFO genes may act in separate pathways. Plants doubly mutant for an ffo gene and for ufo, lfy, or clv3 reveal that the FFO genes play roles related to those of UFO and LFY in floral meristem initiation and that FFO2 and FFO3 may act to control cell proliferation late in inflorescence development.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://www.genetics.org/content/149/2/579PublisherArticle
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1460208/PubMed CentralArticle
ORCID:
AuthorORCID
Meyerowitz, Elliot M.0000-0003-4798-5153
Additional Information:© 1998 Genetics Society of America. Received January 2, 1998. Accepted March 6, 1998. Communicating editor: D. Preuss. We thank Mitsuhiro Aida for sharing cuc1 and cuc2 seeds prior to publication, Ki-Young Suh for help with the enhancer screening, Michael Frohlich for discussions about filamentous structures, and Pat Coen and Jean Edens of the Caltech Electron Microscope Facility for assistance with SEM and TEM. We are grateful to Detlef Weigel, Thomas Jack, and members of the Meyerowitz Laboratory for helpful comments on this manuscript. J.Z.L. was supported by the National Institutes of Health postdoctoral fellowship GM-15132, J.F. by the National Institutes of Health postdoctoral fellowship GM-17868, and X.C. by the National Institutes of Health postdoctoral fellowship GM-17512. This research was supported by National Science Foundation Grant MCB-9603821 to E.M.M.
Funders:
Funding AgencyGrant Number
NIH Postdoctoral FellowshipGM15132
NIH Postdoctoral FellowshipGM17868
NIH Postdoctoral FellowshipGM17512
NSFMCB-9603821
PubMed Central ID:PMC1460208
Record Number:CaltechAUTHORS:20161214-152551671
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20161214-152551671
Official Citation:A Genetic Screen for Modifiers of UFO Meristem Activity Identifies Three Novel FUSED FLORAL ORGANS Genes Required for Early Flower Development in Arabidopsis Joshua Z. Levin, Jennifer C. Fletcher, Xuemei Chen, Elliot M. Meyerowitz GENETICS June 1, 1998 vol. 149 no. 2 579-595
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:72833
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:15 Dec 2016 15:44
Last Modified:15 Dec 2016 15:44

Repository Staff Only: item control page