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. 2019 Jul 4;10:820. doi: 10.3389/fpls.2019.00820

Figure 7.

Figure 7

Natural variation in ZmRAP2.7 gene was significantly associated with number of brace roots within a maize association panel (AM508). (A) ZmRAP2.7-based association mapping and pairwise linkage disequilibrium (LD) analysis. The dots represent SNPs. A SNP variant at fifth exon (SNP1499) associated with number of brace roots was highlighted in red. (B) Number of crown roots and brace roots in haplotypes of ZmRAP2.7 (GG and CC alleles at SNP1499). n denotes the number of genotypes belonging to each haplotype group. Significant difference within each group was indicated by an asterisk (**p < 0.01) according to Student’s t-tests, and no significant was indicated as n.s.