Fig. 3

Genetic relationship of the main cultivated germplasm in China and their breeding history. Note that breeding history and relationships of strains were referenced from previous literature. Samples sequenced in this study are marked by their sample names in brackets. Group names in population analysis are shown after sample name, where b represented group b in the phylogenetic tree of Fig. 2, and I, II and III show subgroups in the population structure of 26 cultivars in Fig. S4