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Fig. 1 | BMC Plant Biology

Fig. 1

From: A disease resistance locus on potato and tomato chromosome 4 exhibits a conserved multipartite structure displaying different rates of evolution in different lineages

Fig. 1

Physical and genetic location of R-gene clusters in the R2 locus in the potato RH-H0, DM and HB-H0 ortho-haplopype, in the HB-H1 haplotype and in the tomato HZ genotype. The top of the figure represents the physical location of genetic markers used to map quantitative and qualitative resistance to pest and pathogens at the R2 locus (STM3016 from Milbourne et al. .[42]; T1430, C2_At5g04810, TG123, TG370_F, T437_R, cLPT5-B19 from Bombarely et al. [43]; Th21 from Park et al. [44], C237 from Moloney et al. [39]; 11_4_f, 107O01_52, 40SSR2_f from Destefanis et al. unpublished results). The sequence of the R2 region in RH, DM and HB-H0 is represented as part of the same ortho-haplotype because of the extensive conserved orthology amongst the three haplotypes. The sequence of HB-H1 structurally forms an independent haplotype from the ortho-haplotype. Only genes belonging to the R2 gene family are represented as open arrows enclosed into boxes separating R-gene clusters. Conserved paralogs are highlighted in the same colours and patterns. The figure was not drawn in scale

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