Open AccessGenetic Diversity within the Population of Xanthomonas oryzae pv. oryzae in India
Author(s) -
J. Yashitola,
D. Krishnaveni,
A. P. K. Reddy,
Ramesh V. Sonti
Publication year - 1997
Publication title -
phytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.264
H-Index - 131
eISSN - 1943-7684
pISSN - 0031-949X
DOI - 10.1094/phyto.1997.87.7.760
Subject(s) - xanthomonas oryzae , xanthomonas oryzae pv. oryzae , biology , pathovar , oryza sativa , population , lineage (genetic) , genetic diversity , pathogen , genetics , gene , bacteria , pseudomonadaceae , pseudomonas , demography , sociology
Xanthomonas oryzae pathovar oryzae causes a serious disease of rice in India and is endemic in all of the major rice-growing areas of the country. Sixty-seven X. oryzae pv. oryzae strains, collected mostly in 1994 and 1995, from 18 locations in India were analyzed by DNA fingerprinting methods using two separate repeat element probes from the X. oryzae pv. oryzae genome. These results show that strains belonging to a single pathogen lineage can be isolated from 16 of the 18 locations sampled; many of these locations are separated from each other by hundreds of kilometers and represent ecologically diverse rice-growing areas. Pathotyping analysis indicated that the strains in this lineage belong to pathotype 1b of X. oryzae pv. oryzae.