图2. 新疆野苹果10个种群105个个体的谱系分型与分组。A, ADMIXTURE的谱系分型结果。蓝色柱代表源于谱系A的可能性Q值, 橙色柱代表源于谱系B的可能性Q值。B, 主成分分析(PCA)分型结果。源于某一谱系的可能性Q值≥0.65的个体, 则确定为该谱系个体; 而两个谱系的可能性Q值均<0.65的个体, 确定为混合谱系个体。C, 最大似然法(ML)系统进化树结果。节点附近的数值为该节点的支持率(%)。图中种群编码信息与表1一致。

Fig. 2. Genetic clustering of the 105 individuals from ten populations of Malus sieversii. A, Result based on ADMIXTURE at K = 2. Blue columns indicate the Q estimates (possibility values) of lineage A, while orange columns indicate lineage B. B, Result based on principal component analysis (PCA). Individuals of each cluster were divided under the threshold of Q estimates (possibility values) ≥0.65, while individuals with Q estimates < 0.65 were defined as admixed. C, Result based on maximum-likelihood phylogenetic tree. Numbers near the branches showed the ultrafast bootstrap values of the nodes (%). Population codes are consistent with Table 1.