Abstract
Plant height and tiller number are indispensible for the establishment of grain production in rice (Oryza sativa L.). A new rice mutant high-tillering dwarf 3 (htd3) exhibiting more tiller number and shorter culm length than the wild-type Guichao 2 (GC2, an indica cultivar) was used to investigate the global gene expression patterns at days after germination 25 (DAG25) and DAG60. In this study, we identified 305 and 987 genes with at least twofold change in gene expression level at DAG25 and DAG60 respectively using the rice microarray chip. Gene ontology enrichment analysis of these twofold change regulated genes revealed that large numbers of genes were involved in binding activity, catalytic activity and metabolic process. The chip results also showed that some of the regulated genes involved in diverse molecular pathways, including gibberellin pathway, brassinosteroid pathway and auxin signal, had significant differences in gene expression abundance at DAG60. This genome-wide gene expression analysis could provide a new opportunity to uncover the regulation mechanisms of the development of culm and tiller, two important components of yields in rice.
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This work was supported by FANEDD from the Ministry of Education of China (201063).
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Zhang, B., Sun, C., Xie, D. et al. Global gene expression analysis of a rice high-tillering dwarf mutant. Genes Genom 36, 485–496 (2014). https://doi.org/10.1007/s13258-014-0184-y
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DOI: https://doi.org/10.1007/s13258-014-0184-y