Next generation sequencing identified genomic region and diagnostic markers for resistance to bacterial wilt in peanut (Arachis hypogaea L.)

Bacterial wilt, caused by Ralstonia solanacearum, is a devastating disease affecting over 350 plant species. Only two resistance genes (R-genes) to this disease have been cloned in Arabidopsis, and its genetic basis was poorly studied in other plants, for example the peanut, an important legume crop possessing the most stable and durable resistance. Here, we deployed sequencing-based trait mapping approach, QTL-seq, to discover genomic regions, candidate genes and diagnostic markers for bacterial wilt resistance (BWR) in a recombination inbred line (RIL) population (195 progenies) of peanut.