Genomic DNA library preparation for resistance gene enrichment and sequencing (RenSeq) in plants

Enrichment of genomic DNA for genes of interest prior to high-throughput sequencing offers an efficient and cost-effective approach to reduce genome complexity. Target enrichment typically yields higher read-depth for selected genes and is therefore suitable for determination of sequence polymorphisms and enables multiplexing of samples. Target enrichment also provides a means to annotate specific gene families within the sequenced organisms without the requirements for gene models. Here we describe enrichment procedures for NB-LRR-type plant resistance genes that can, for example, be used to establish the NB-LRR gene complements of individual plants and to map resistances more rapidly using a bulked segregant analysis.