Fig. 1: Spatial genetic structure of 244 B1K+ accessions and results of gene flow analysis. | Heredity

Fig. 1: Spatial genetic structure of 244 B1K+ accessions and results of gene flow analysis.

From: Physical geography, isolation by distance and environmental variables shape genomic variation of wild barley (Hordeum vulgare L. ssp. spontaneum) in the Southern Levant

Fig. 1

A A geographical map of accession origins. Countries of origin of IPK accessions are colored in light red. The green close circle represents the Levant region. The blue open circle indicates the origin of B1K+ collection. B PCA plot of the first and second PC axes. C PCA plot of the first and third PC axes. Pie charts in PCA plots represent ancestry coefficients of individuals estimated by ALStructure with K = 4. D Distribution of genetic clusters and effective migration surface. Pie charts give the average ancestry coefficients of individuals in collection sites. Color gradient represents gene flow rates estimated by EEMS. E Population pairs with unPC scores higher than the top 2.5% threshold which indicate a significantly low genetic similarity over a short geographical distance. F Population pairs with unPC scores lower than the bottom 2.5% threshold which indicate significantly high genetic similarity over a large geographical distance. G Gene flow rates inferred by the coalescent-based inference method, representing the probabilities per unit of time that individuals in a region i are descended from a region j (Lundgren and Ralph 2019). The thickness of arrows and the depth of red color is proportional to gene flow rates. The full results are given in Table S4.

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