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Fig. 2 | BMC Plant Biology

Fig. 2

From: Mapping of a novel clubroot resistance QTL using ddRAD-seq in Chinese cabbage (Brassica rapa L.)

Fig. 2

The clubroot disease resistance linkage map identified in chromosome A08 from Chinese cabbage (Brasssica rapa var. pekenensis) (a). The mapped locus is resistant to the pathotype 4 isolate Seosan. The SNP haplotyping was done by ddRAD-seq using a mapping population containing 45 resistant and 45 susceptible F2 genotypes and 3 resistant and 3 susceptible parents. ddRAD-seq was accomplished using 2152 markers. QTL mapping was done using Windows QTL cartographer with 1000 permutations and a significance level of 0.05. Four HRM probes separated resistant and susceptible members of the F2 population (b), see Additional file 6: Figure S1

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