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PMID: 1840903 Published · ppublish English Journal Article Research Support, Non-U.S. Gov't

Expression patterns of myb genes from Antirrhinum flowers.

The Plant cell ·Vol. 3 ·No. 2 ·1991-02-00 ·Pages 115-25

Jackson D, Culianez-Macia F, Prescott AG, Roberts K, Martin C

Abstract

Six genes that contain sequence encoding the DNA binding domain of the Myb oncoproteins have been isolated from a cDNA library prepared from Antirrhinum majus (snapdragon) flowers using oligonucleotide probes directed against part of this domain. The derived amino acid sequences of these genes reveal acidic domains in their carboxy termini, suggesting that they might act as transcriptional activators. Analysis of their expression patterns with respect to organ specificity, floral differentiation, and response to light suggests that these genes are not involved in controlling anthocyanin biosynthesis, unlike the characterized myb-related genes C1 and Pl from maize. One of the genes is expressed mainly in the nectary and the transmitting tract of the style, two major secretory tissues of the flower, suggesting that the function of this gene is related to active carbohydrate secretion. We conclude that plants contain a number of myb-related transcriptional activators involved in a diversity of gene regulation.

MeSH Terms
Amino Acid Sequence Base Sequence DNA-Binding Proteins/genetics Gene Expression Genes, Plant In Situ Hybridization Light Molecular Sequence Data Oncogenes Plant Proteins/genetics Plants/genetics Proto-Oncogene Proteins c-myb Sequence Alignment Transcription Factors/genetics
Chemicals
DNA-Binding Proteins Plant Proteins Proto-Oncogene Proteins c-myb Transcription Factors
Authors & Affiliations
5 authors, click to expand affiliations / ORCID
Jackson D
Department of Cell Biology, John Innes Institute, Norwich, United Kingdom.
Culianez-Macia F
Prescott A G
Roberts K
Martin C
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Article Info
Journal
The Plant cell
Abbr.
Plant Cell
ISSN
1040-4651
DOI
10.1105/tpc.3.2.115
Published
1991-02-00
Pages
115-25
Language
English
Region
England
NLM ID
9208688
PMCID
PMC159984
Subset
IM
External Links
PubMed source DOI: 10.1105/tpc.3.2.115 PMC Full Text View journal details
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