Molecular Genetics and Genomics

, Volume 276, Issue 6, pp 565–575

Genome-wide analysis of the stress associated protein (SAP) gene family containing A20/AN1 zinc-finger(s) in rice and their phylogenetic relationship with Arabidopsis

Original Paper

DOI: 10.1007/s00438-006-0165-1

Cite this article as:
Vij, S. & Tyagi, A.K. Mol Genet Genomics (2006) 276: 565. doi:10.1007/s00438-006-0165-1


Proteins with the A20/AN1 zinc-finger domain are present in all eukaryotes and are well characterized in animals, but little is known about their function in plants. Earlier, we have identified an A20/AN1 zinc-finger containing stress associated protein 1 gene (SAP1) in rice and validated its function in abiotic stress tolerance. In this study, genome-wide survey of genes encoding proteins possessing A20/AN1 zinc-finger, named SAP gene family, has been carried out in rice and Arabidopsis. The genomic distribution and gene architecture as well as domain structure and phylogenetic relationship of encoded proteins numbering 18 and 14 in rice and Arabidopsis, respectively, have been studied. Expression analysis of the rice SAP family was done to investigate their response under abiotic stress conditions. All the genes were inducible by one or the other abiotic stresses indicating that the OsSAP gene family is an important component of stress response in rice. Manipulation of their expression and identification of their superior alleles should help confer stress tolerance in target crops.


A20 Abiotic stress AN1 Arabidopsis Expression analysis Rice Stress associated protein Zinc-finger 

Supplementary material

438_2006_165_MOESM1_ESM.doc (42 kb)
Supplementary material

Copyright information

© Springer-Verlag 2006

Authors and Affiliations

  1. 1.Interdisciplinary Centre for Plant Genomics and Department of Plant Molecular BiologyUniversity of Delhi South CampusNew DelhiIndia

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