Five SNP linkage maps for linkage group 6D. Maps were derived from successive steps in map construction: I) 413 PHR SNPs on the full family (n = 79); II) using 75 progeny (four individuals removed due to poor performance based on graphical genotyping results or because they were duplicates; III) after scrutinizing genotype calls, some data points were replaced with missing values thus removing singletons and a pair; IV) adding 10 previously mapped SSR loci ; and V) a full data set totaling 10 SSRs and 667 SNPs consisting of 413 PHR, 247 NMH and 7 OTV SNPs. Black, blue and pink locus lines indicate PHR, NMH and OTV SNPs respectively, and green lines indicate SSR loci. The outer PHR SNPs of the maps are highlighted. PHR markers 1 to 3 refer to AX-89840764, AX-89799050 and AX-89799050 respectively. OTV markers 1 to 7 refer to the SNP (of the cross) AX-89814809 (∅∅ × A∅), AX-89869370 (∅∅ × A∅), AX-89866711 (A∅ × ∅∅), AX-89871559 (A∅ × ∅∅), AX-89896961 (AB × BB), AX-89897092 (AB × BB), and AX-89808404 (A∅ × B∅), respectively.