Os02g0766700

The rice Os02g0766700 was reported as OsbZIP23 in 2016 by researchers from India.

Annotated Information

Gene Symbol

• Os02g0766700 <=> OsbZIP23 bZIP23

Function

• OsbZIP23 is a positive transcriptional-regulator of the ABA-signaling pathway.
• Enhanced gene expression rather than natural polymorphism in coding sequence of OsbZIP23 is accountable for improved drought tolerance and yield performance in rice genotypes.

Phenotypic analysis

• Analyses of the coding DNA sequence (CDS) of the cloned OsbZIP23 gene revealed single nucleotide polymorphism at four places and a 15-nucleotide deletion at one place.
• The overexpression of any of the two polymorphic forms(1083 bp and 1068 bp CDS) of OsbZIP23 improved drought tolerance and yield-related traits significantly by retaining higher content of cellular water, soluble sugar and proline; and exhibited decrease in membrane lipid peroxidation in comparison to RNAi lines and non-transgenic plants.

Expression

• The single-copy OsbZIP23 gene is expressed at relatively higher level in leaf tissues of drought-tolerant genotypes, and its abundance is more in reproductive stage.

Evolution

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Labs working on this gene

• Adv. Lab. for Plant Genetic Engineering, Advanced Technology Development Center, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
• Department of Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur 721302, India