Biotech Updates

Cross-resistance between Mexican Rice Borer and Sugarcane Borer Studied

April 16, 2010

Mexican rice borer (MRB) and sugarcane borer (SCB) are two of the most economically significant sugarcane pests in the United States. The larvae of these two pests have resemblance in their feeding behavior. Thus, Marvellous M. Zhou of South African Sugarcane Research Institute, and colleagues Collins A. Kimbeng, Jorge A. da Silva and William H. White, conducted a case study to determine if SCB-resistance in sugarcane is correlated with its resistance to MRB. The scientists coined this occurrence as "cross-resistance." Genotypes from Louisiana and Texas sugarcane breeding populations were used in this study.

Results showed that there is significant association between SCB- and MRB-damaged internodes among the Louisiana and the SCB-resistant populations. Moreover, SCB-resistant genotypes were less likely to be bored by MRB compared to SCB-susceptible genotypes.

Read http://crop.scijournals.org/cgi/content/full/50/3/861?gca=50%2F3%2F861&sendit=Get+All+Checked+Abstract%28s%29&#BDY for more information.