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Screening of Rice Genotypes for Resistance to Brown Plant Hopper Biotype 4 and Detection of BPH Resistance Genes

Sri Chandana Bhogadhi1, J. S. Bentur1, Ch. V. Durga Rani2, G. Thappeta2, K. N. Yamini2, N. Arun Prem Kumar2, Md Jamaloddin2, G. Swathi2, V. Jhansi Lakshmi3, K. Vasantha Bhanu4 and P. V. Satynarayana4
1 Agribiotech Foundation, Rajendranagar, Hyderabad-500030, India
2 Institute Biotechnology, Rajendranagar, Hyderabad-500030, India
3 Directorate of Rice Research, Rajendranagar, Hyderabad-500030, India
4 Andhra Pradesh Rice Research Institute, Maruteru-534122, India
Abstract—Brown plant hopper [Nilaparvata lugens (Stål.)] is one of the most destructive pests of rice, which causes significant yield losses worldwide. Identification of resistant varieties is very important as the biotypes of the pest is changing its behaviour from time to time and the earlier released resistant rice varieties showing susceptibility to the pest. Identification of new sources of resistance and verification of resistance reaction of already reported donors is very important Field screening was carried out in 20 rice genotypes following standard evaluation system (IRRI, 1992). Further these genotypes were screened by standard seed box screening technique (SSST), honey dew test and nymphal survival test in the greenhouse in order to confirm the resistance and susceptibility. During screening, TN1 and PTB33 were used as susceptible and resistant checks, respectively. The results of field screening and SSST showed low BPH damage score (3.0) in BM71, ACC5098, ACC2398, MTU1001, Rathuheenathi. In addition, honeydew excretion test was carried to know the preference or non-preference of insect. Nymphal survival, nymphal duration, % male population, wing dimorphism studies helped to know the antibiosis mechanism of resistance. Low honeydew excretion and low nymphal survival rate was observed in BM71, ACC5098 and Rathuheenathi reflecting non-preference feeding behaviour and antibiosis mechanism of resistance, respectively. Molecular studies were taken up in these lines using reported gene linked markers of major BPH resistance genes and found more than one BPH resistance genes in each resistant genotype. These lines were used as donors in rice breeding programme to develop BPH resistant varieties.

Index Terms—brown plant hopper, Rice genotypes, SSR markers.

Cite: Sri Chandana Bhogadhi, J. S. Bentur, Ch. V. Durga Rani, G. Thappeta, K. N. Yamini, N. Arun Prem Kumar, Md Jamaloddin, G. Swathi, V. Jhansi Lakshmi, K. Vasantha Bhanu and P. V. Satynarayana, "Screening of Rice Genotypes for Resistance to Brown Plant Hopper Biotype 4 and Detection of BPH Resistance Genes," International Journal of Life Sciences Biotechnology and Pharma Research, Vol. 4, No. 2, pp. 90-95, April 2015.
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