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. 2009 May 16;9:105. doi: 10.1186/1471-2148-9-105

Figure 7.

Figure 7

Nonlinear, single regression of average F1 pollen fertility (a) against average parental chloroplast genetic distance (K81uf + G model of nucleotide substitutions with gamma shape = 0.2834) and (b) against the average parental nuclear genetic distance (Tamura--Nei + I + Γ model of nucleotide substitutions with gamma shape = 0.8578, proportion of invariable sites = 0.3018). Dashed circles indicate data points showing strong discordance between chloroplast genetic distance and average F1 pollen fertility.