Geographic distribution and introgression signals of ancestral genetic clusters in North American wild cranberry populations. (IMAGE)
Caption
Geographic distribution and introgression signals of ancestral genetic clusters in North American wild cranberry populations. A) Geographic map showing ancestry proportions across collection sites of wild cranberry populations sampled in Delaware (DE), Massachusetts (MA), Maine (ME), Michigan (MI), Minnesota (MN), New Brunswick (NB), New Jersey (NJ), New York (NY), Pennsylvania (PA), and Wisconsin (WI). Pie charts at each sampling location represent the average ancestry composition of that population. The vertical bar below displays individual level admixture proportions for each accession. Four ancestral genetic clusters were identified at the optimal admixture level (K = 4) and are represented by red (C1), blue (C2), yellow (C3), and turquoise (C4). B) Heatmap showing introgression detected with the Fbranch statistic (*f*<sub>b</sub>), which assigns gene flow signals to specific clades of the population level phylogeny. The Y axis displays the population level tree rooted with Vaccinium oxycoccos as the outgroup. Darker red indicates higher *f*<sub>b</sub> values (ranging from 0 to 1), while gray denotes absence of introgression. Blue dotted lines mark internal nodes representing the most recent common ancestors.
Credit
Horticulture Research
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CC BY