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Author Jain M., Jitendra P Khurana
Title Transcript profiling reveals diverse roles of auxin-responsive genes during reproductive development and abiotic stress in rice.
Abstract:
Auxin influences growth and development in plants by altering gene expression. Many auxin-responsive genes have been characterized in Arabidopsis in detail, but not in crop plants. Earlier, we reported the identification and characterization of the members of the GH3, Aux/IAA and SAUR gene families in rice. In this study, whole genome microarray analysis of auxin-responsive genes in rice was performed, with the aim of gaining some insight into the mechanism of auxin action. A comparison of expression profiles of untreated and auxin-treated rice seedlings identified 315 probe sets representing 298 (225 upregulated and 73 downregulated) unique genes as auxin-responsive. Functional categorization revealed that genes involved in various biological processes, including metabolism, transcription, signal transduction, and transport, are regulated by auxin. The expression profiles of auxin-responsive genes identified in this study and those of the members of the GH3, Aux/IAA, SAUR and ARF gene families were analyzed during various stages of vegetative and reproductive (panicle and seed) development by employing microarray analysis. Many of these genes are, indeed, expressed in a tissue-specific or developmental stage-specific manner, and the expression profiles of some of the representative genes were confirmed by real-time PCR. The differential expression of auxin-responsive genes during various stages of panicle and seed development implies their involvement in diverse developmental processes. Moreover, several auxin-responsive genes were differentially expressed under various abiotic stress conditions, indicating crosstalk between auxin and abiotic stress signaling.
Journal The FEBS journal
Country India
Volume 276(11)
Pages 3148-62
Year 2009
PubMed ID 19490115
PubMed Central ID -
DOI 10.1111/j.1742-4658.2009.07033.x
URL -
Relation
Gene IAA10 IAA19 IAA24 SAUR10 SAUR11 SAUR12 SAUR15 SAUR18 SAUR19 SAUR2 SAUR20 SAUR21 SAUR22 SAUR23 SAUR24 SAUR25 SAUR28 SAUR29 SAUR3 SAUR30 SAUR31 SAUR33 SAUR34 SAUR38 SAUR39 SAUR41 SAUR42 SAUR48 SAUR49 SAUR5 SAUR51 SAUR53 SAUR54 SAUR55 SAUR56 SAUR57 SAUR58 SAUR8 SAUR9
INSD -
Strain Wild Core Collection -
Induced Mutation Lines(NIG Collection) -
Sterile Seed Strain -
Lethal Embryo
Mutantion Strain
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Stages in Each Organ
- Muant Lines (Gene)
-
Cultivated Varieties(NIG Collection) -
Stages in Each Organ -
/rice/oryzabase