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Fig. 4 | BMC Genomics

Fig. 4

From: Restriction associated DNA-genotyping at multiple spatial scales in Arabidopsis lyrata reveals signatures of pathogen-mediated selection

Fig. 4

Genomic regions of elevated polymorphism and location of NLR genes across North American selfing populations. Smoothed nucleotide diversity plots based on (a) 4327 loci present in all, or (b) 7256 loci present in at least 50% of individuals. Regions of significantly elevated nucleotide and/or gene diversity (neighbouring windows, 450 kbp either side of a polymorphic locus; p < 0.05) are marked in purple, with the eight chromosomes shaded alternately in dark and light grey. The genomic locations of single outlier loci are marked along the top of the graph by downward pointing blue triangles (dark blue = single outlier based on nucleotide and gene diversity, or turquoise = based on observed heterozygosity). The location of 206 annotated NLR genes on the A. lyrata reference chromosomes 1–8 are denoted by blue squares, with two candidates (RPP5 [95] and At5g63020 [40]) marked by downward pointing blue arrows. These annotated candidates are present in high diversity regions for both sets of RAD loci and show a priori evidence for balancing selection in A. thaliana (Additional file 1: Table S6)

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