Extended Data Fig. 3: Cluster analysis of 380 maize inbred lines based on root traits.
From: Genome-wide dissection of changes in maize root system architecture during modern breeding

(a) Cluster analysis of 380 inbred lines based on ROA, RMEW, and AREA. (b) Representative inbred lines from the three clusters (groups 1–3). (c) Comparison of eight root traits among groups 1–3. (d) Comparison of eight root traits among four subpopulations. (e) Proportion of lines from each of four subgroups in the three cluster groups. The four subgroups (Mixed, SS, NSS, and TST) are based on genetic relationships among the different inbred lines. Mixed, mixed group; SS, stiff stalk group; NSS, non-stiff stalk group; TST, tropical and subtropical group.