DISCUSSION
We enriched Silphium integrifolium libraries for R genes using
baits developed from the related Helianthus annuus genome to
characterize the diversity across a rainfall gradient. We found that the
baits recovered a substantial portion of R genes in the reference. We
found geographic associations between R gene count and rainfall. Here,
we discuss the Silphium R gene content across the rainfall
gradient, as well as the performance of the RenSeq enrichment method,
and the biological implications of the geographic pattern we
uncovered.
DISEASE RESISTANCE AND RAINFALL