Fig. 2
From: Genome-wide association study (GWAS) reveals the genetic architecture of four husk traits in maize
Boxplot of husk traits distribution in different subpopulations. Analysis of variance (ANOVA) was applied to examine the difference of traits among subpopulations. Different numbers indicate statically significant difference at P ≤ 0.05. No. of inbred lines included in each subpopulation are 215, 70, 27 and 196 for MIXED, NSS, SS and TST, respectively. a HN; b HL; c HW; d HT