BRR RNASeq collection - Cotton

Black root rot (BRR) disease of is an economically important disease of cotton and other crops, especially in cooler regions with short seasons. Symptoms include black discoloration of the roots, reduced number of lateral roots, and stunted or slow growth. The cultivated tetraploid species of cotton are susceptible. Resistance to BRR was identified in the G. arboreum accession BM13H and associated with reduced and restricted hyphae growth and sporulation. Transcriptome analysis indicated BM13H responded to infection at early time points 2- and three-days post inoculation, but that by day 5, few differentially expressed genes were observed between infected and uninfected roots. Inheritance of BM13H resistance to BRR was analysed in an F6 recombinant inbred population and was found to be conferred by a single dominant locus that was fine mapped to a region on chromosome 1, containing ten genes including five putative resistance-like genes.