Fig. 3

Genetic architecture and analysis of the population of oil-Camellia cultivars. A The PCA analysis of C. oleifera accessions. Different color of points indicates the origins of the cultivars that are collected from different areas of China. Source data are provided as Table S20. SEF, South East of Fujian; SWG, South West of Guangxi; MJX, Middle of Jiangxi; MZJHN, Middle of Zhejiang and Hunan. B The population structures of 221 accessions in association population by admixture analysis. Numbers in the y-axis indicate the membership coefficient. Each bar on the x-axis represents an accession; colored segments within one bar reflect the proportional contributions of each subpopulation to this individual. The subpopulations are separated by dashed lines. The black bracket indicates the wild accessions. C The phylogenetic analysis and phenotypic evaluation of 221 C. oleifera accessions. (a) The seven red frames are the seven subpopulations defined based on the phylogenetic tree. (b–h) are the distributions of average fruit yield of per tree (kg) for the seven subpopulations, respectively. (i–o) are the distributions of average weight per fruit (g) for the subpopulations, respectively. (p–v) are the distribution of seed number per fruit for the subpopulations, respectively