Open AccessCoordinated regulation of maize genes during increasing exposure to ultraviolet radiation: identification of ultraviolet‐responsive genes, functional processes and associated potential promoter motifs
Author(s) -
Blanding Carletha R.,
Simmons Susan J.,
Casati Paula,
Walbot Virginia,
Stapleton Ann E.
Publication year - 2007
Publication title -
plant biotechnology journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.525
H-Index - 115
eISSN - 1467-7652
pISSN - 1467-7644
DOI - 10.1111/j.1467-7652.2007.00282.x
Subject(s) - biology , gene , regulon , transcriptome , gene expression , genetics , regulation of gene expression , computational biology , identification (biology) , botany
Summary Genetic gain in the yield of modern maize reflects increased stress tolerance. The manipulation of genes for deliberate alterations in tolerance relies on an understanding of the regulation and components of stress responses. Transcriptome analysis of an ultraviolet (UV) radiation time course with paired treatment and control measurements yielded groups of coordinately regulated genes and gene ontology processes. A comparison of the patterns of gene expression with patterns of morphological changes allowed the identification of physiologically relevant gene expression regulons. A set of genes significantly affected by UV radiation in maize leaves was selected by linear modelling plus order‐restricted inference profile matches. This gene list was used to find upstream sequence motifs that predict the UV regulation of maize gene expression.