Fig. 1From: Construction of a high-density linkage map and graphical representation of the arrangement of transcriptome-based unigene markers on the chromosomes of onion, Allium cepa L.Linkage maps. Left, SNP-based map including PCR-based markers (F2 population A). Middle, PCR-based map (F2 population B). Right, linkage map constructed using a gynogenic population derived from F1 (population C) (Wako, 2016)Back to article page