Richa Raghuwanshi
India
Research Article
Pathogenic and Genetic Characterization of Xanthomonas campestris Pv.
campestris Races Based on Rep-PCR and Multilocus Sequence Analysis
Author(s): Priyanka Singh Rathaur, Dinesh Singh, Richa Raghuwanshi and Yadava DK
Priyanka Singh Rathaur, Dinesh Singh, Richa Raghuwanshi and Yadava DK
Xanthomonas campestris pv. campestris (Pammel) Dowson (Xcc) is the causal agent of black rot disease of crucifers worldwide. Seventy five isolates of Xcc were collected from 12 agro-climatic regions of India to determine the distribution pattern of races and diversity of the population. Based on pathogenic reaction on seven standard differential crucifers, race 1, 4 & 6 were found to be prevalent. For assessing the pathogenic diversity, forty one cultivars of crucifers comprising seven Brassica and coeno species were inoculated artificially under field conditions. Brassica juncea cultivars (Pusa Bold, Varuna, Pusa Vijay, Pusa Mustard 21 and Pusa Mustard 25) showed resistance against all the strains of Xcc, whereas the Brassica olerecea cultivar Pusa Ageti was found to be resistant to races 1 and 4. Genetic characterization of these 75 strains of X.. View More»
DOI:
10.4172/2157-7471.1000317