Fig. 4

Genetic diversity of key African sweetpotato accessions. a Neighbor-joining phylogenetic tree of the Mwanga Diversity Panel accessions based on single nucleotide polymorphisms detected using the I. trifida genome as the reference. Population membership based on previous simple sequence repeat analysis is indicated by branch colors. Numbers at nodes indicate the percentage of 1000 bootstrap replications that support each clade. Huarmeyano was used as an outgroup for rooting. b Read depth analyses of “Beauregard” and “NASPOT 5” based on alignment to the I. trifida genome. For each box plot, the lower and upper bounds of the box indicate the first and third quartiles, respectively, and the center line indicates the median. c A metaphase cell of “Beauregard” showing 90 chromosomes and “NASPOT 5” showing 88 chromosomes. Bars represent 10 μm