Fig. 4: Population structure and variation in Armeniaca wild and cultivated apricots.
From: Population genomics of apricots unravels domestication history and adaptive events
a Principal component analysis (PCA) from a set of 95,686 SNPs; the first PCA component explained 46.59% of total variation, the second component only 3.62%. The colors and signs correspond to the ones depicted in Fig. 1a-b. b PCA after removal of P. mume, P. brigantina and P. mandshurica individuals. Orange circles: P. brigantina, pink circles: P. mume, beige circles: P. mandshurica; rectangles: P. armeniaca cultivars and landraces (European in grey, Chinese in purple, Central Asian in blue); red stars: wild Southern Central Asian P. armeniaca (S_Par); yellow stars: wild Northern Central Asian P. armeniaca (N_Par); blue triangles: wild Northern Eastern Chinese P. sibirica (NE_Psib); green triangles: wild Western Chinese P. sibirica (NW_Psib). c PCA after removal of P. sibirica accessions from the NE_Psib populations. d fastSTRUCTURE barplot of the 917 Armeniaca individuals at K = 12 and 95,686 SNPs. EIC, European Irano Caucasian; CA, Central Asian; CH, Chinese; S_Par, Southern Central Asian P. armeniaca; N_Par, Northern Central Asian P. armeniaca; NW, North_Western P. sibirica; NE, North_Eastern P. sibirica. Source data are provided as a Source Data file.
