Fig. 2

Effect analysis of allele variations on rice Al tolerance. a. RRE of varieties with reference and alternative allele at top 5 significant gene-based SNPs under Al toxic after 24 h. Sea blue bar represents RRE of reference allele (Nippobare), other five colors represent RRE of alternative alleles for top five significant SNPs; b. Root tips of variety with reference and alternative allele locating at 10,953,291 on chromosome 1 stained by hematoxylin without Al toxicity. Left root tip belongs to the variety (Youzhan) with alternative allele, while right belongs to reference allele (Nipponbare); c. Root tips of variety with reference and alternative allele locating at 10,953,291 on chromosome 1 stained by hematoxylin after 24 h under Al toxicity. Left root tip belongs to the variety (Youzhan) with alternative allele, while right belongs to reference allele (Nipponbare)