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Fig. 2 | Genome Biology

Fig. 2

From: Diversification and independent domestication of Asian and European pears

Fig. 2

Phylogenetic tree and gene flow analysis. a Phylogenetic tree and the population structure (K = 5) of all 113 pear accessions inferred from whole-genome SNPs, with apple (Malus× domestica) used as an outgroup. Each color corresponds to a single population as noted. In population structure, each accession is represented by a horizontal bar. Pyw and Pyc indicate wild and cultivated accessions, respectively, and other codes correspond to abbreviated names of pear species. b Population structure (K = 2) of European pears. c Detection of gene flow within Asian pears. d Detection of gene flow within European pears; subgroup 1 and subgroup 2. e Detection of gene flow between Asian and European pears. Lines represent gene flow; arrows indicate the direction of gene flow. The scale bar shows a tenfold average standard error of the entries in the sample covariance matrix. The color bar shows the migration weight: a red color denotes a strong gene flow, while a yellow color denotes a weak gene flow. f IBD analysis exploring the genetic background of P. sinkiangensis from a combination of Asian and European pears. Blocks originating from Asian and European pears were identified in P. sinkiangensis Pyc-si1

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