Fig. 2From: Combined linkage and association mapping reveal QTL for host plant resistance to common rust (Puccinia sorghi) in tropical maizeNeighbor-joining tree constructed from a simple matching distance of 32,051 single nucleotide polymorphism (SNP) markers and showing the population structure of the DTMA panel of tropical maize inbred lines. The eight divergent groups identified are color-coded and designated I-VIIIBack to article page