Fig. 3: The plot of K versus ΔK to determine the optimum number of clusters present in global isolates of IDV based on the HEF gene. | Communications Biology

Fig. 3: The plot of K versus ΔK to determine the optimum number of clusters present in global isolates of IDV based on the HEF gene.

From: Rapid evolution leads to extensive genetic diversification of cattle flu Influenza D virus

Fig. 3

‘K’ represents the number of clusters. ‘ΔK’ represents the rate of change of posterior probability of the data given K. The optimum number of clusters (Kopt) for 146 global IDV isolates based on HEF-gene sequences is determined from the plot. A major peak for ΔK at K = 2 (D/OK and D/660 form 2 major clusters) and two minor peaks at K = 5 and 8 were observed.

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