Figure 1.

Phenotypic distributions for resistance to Fusarium wilt in a genome-wide association study (GWAS) in strawberry. Histograms are shown for phenotypes observed in (A) 2016 and (B) 2017 field experiments in Davis, California among 565 strawberry germplasm accessions artificially inoculated with isolate AMP132 of Fusarium oxysporum f. sp. fragariae. Phenotypes were observed four to nine weeks post-inoculation in 2016 and 26 to 36 weeks post-inoculation in 2017. Least square means were estimated from four clonal replicates per entry with entries arranged in a square lattice experiment design. Disease scores ranged from 1 to 5, where 1 = healthy and 5 = dead.