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Author Cheng S., Huang Y., Zhu N., Zhao Y.
Title The rice WUSCHEL-related homeobox genes are involved in reproductive organ development, hormone signaling and abiotic stress response.
Abstract:
The WUSCHEL-related homeobox (WOX) genes are important transcription regulators participated in plant development processes. Rice (Oryza sativa L.) genome encodes at least 13 WOX members. In this study, a systematic microarray-based gene expression profiling of eleven WOX genes was performed for the whole life cycle of rice at 16 different tissues/organs of MH63 (rice indica cultivar), which included eight reproductive organs and eight vegetative tissues. The results demonstrated that four genes (OsWUS, OsNS1/OsNS2, OsWOX3 and OsWOX9A) were specifically expressed in panicle and endosperm development, and six genes (OsWOX5, OsWOX9B, OsWOX9D, OsWOX11, OsWOX12A and OsWOX12B) were preferentially expressed in seeds (72h after imbibitions) during root emergence or growth. In situ hybridization analysis revealed differential transcript levels of OsWOX4, OsWOX5, OsWOX9A and OsWOX12B during panicle development and embryogenesis. Results of qRT-PCR showed that expression of four rice WOX genes (OsWOX5, OsWOX11, OsWOX12B and OsWOX12A) was up- or down-regulated by plant hormones (auxin, cytokinin and gibberellin). More interestingly, most WOX genes were responsive to abiotic stress stimuli of drought, salt and cold. The molecular studies presented here will further provide insight in understanding the functions of rice WOX gene family in rice development, hormone signaling, and abiotic stress response.
Journal Gene
Country unknown
Volume 549(2)
Pages 266-74
Year 2014
PubMed ID 25106855
PubMed Central ID -
DOI 10.1016/j.gene.2014.08.003
URL -
Relation
Gene DWT1 NAL2 NAL3 QHB WOX1 WOX10 WOX11 WOX4 WOX6 WOX8 _
INSD -
Strain Wild Core Collection -
Induced Mutation Lines(NIG Collection) -
Sterile Seed Strain -
Lethal Embryo
Mutantion Strain
-
Stages in Each Organ
- Muant Lines (Gene)
-
Cultivated Varieties(NIG Collection) -
Stages in Each Organ -
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