Genetic dissection of the five-way interaction.

<p>Genome-wide allele frequency plots are shown for mapping populations from backcrosses to BY (A) and 3S (B). Enriched loci are outlined in orange (causal allele from 3S parent), blue (causal allele from BY parent), or grey (allele is a selectable marker engineered into BY). Genes within the Chromosome IV (C), V (D), XV (E), XIII (F), and XIV (G) loci are shown. Grey boxes delimit regions of the loci that were subsequently excluded from consideration based on fine-mapping experiments. All non-essential genes within these windows were deleted in a multi-locus introgression strain that showed rough morphology. Genes that caused loss of the phenotype when deleted are colored red.