Comparative Phylogenetic Analysis of Orthologues of Bacterial Leaf Blight Resistance Gene Xa27 in Rice

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Sangeeta Singh
Suresh Chand
N. K. Singh
T. R. Sharma

Abstract

Bacterial blight (BB), caused by Xanthomonas oryzae pv. oryzae (Xoo) has been one of the most serious diseases in rice. The present investigation was done to find out novel alleles of Xa27 gene from rice. Twenty nine orthologs of bacterial blight resistance genes Xa27 were used for comparative analysis. The phylogenetic analysis of cultivated and wild species of rice indicated clear phylogenetic relationship and Oryza alta was the farthest relative among all. Twenty nine orthologs have been divided into six groups. All twenty nine alleles studied in present investigation, have maximum ten motifs such as Protein kinase C phosphorylation site and Nmyristoylation site indicating its role in signal transduction process. Motif distribution shows high degree of conservation among Xa27 alleles. This study will help to understand molecular mechanism of Xa27 gene and its evolution in rice and related species. Besides, various resistant alleles cloned from wild species can be exploited in the effective management of bacterial blight disease after transferring these alleles either alone or in combination in the susceptible genotypes.

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How to Cite
Singh, S., Chand, S., Singh, N., & Sharma, T. (2018). Comparative Phylogenetic Analysis of Orthologues of Bacterial Leaf Blight Resistance Gene Xa27 in Rice. Indian Research Journal of Genetics and Biotechnology, 10(01), 27-36. Retrieved from https://irjgbt.in/index.php/IRJGBT/article/view/406
Section
Review Article