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Fig. 1 | BMC Evolutionary Biology

Fig. 1

From: Molecular evolution of candidate male reproductive genes in the brown algal model Ectocarpus

Fig. 1

Species tree and species sexual compatibility. Maximum likelihood tree based on the cox3 gene from nine Ectocarpus strains and two Scytosiphon lomentaria specimens. Strains used in this study are marked with blue bars. ML bootstrap (left) and Bayesian posterior probability (right) values are shown. Red lines define species with prezygotic barriers to fertilization; dotted lines describe species with uncertain gamete compatibility; grey shading indicates pairwise d N /d S  > 1 (PAML) (see Additional file 4)

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