Fig. 4From: Genetic diversity and population structure of early and extra-early maturing maize germplasm adapted to sub-Saharan AfricaPrincipal coordinate analysis (PCoA) of the 439 maize inbred lines. Colour-coded according to membership (based on > 60% identity) to sub-populations identified from structure analysis at K = 4 (a) and 10 (c-d)Back to article page