Figure 2From: Molecular evolution of psbA gene in ferns: unraveling selective pressure and co-evolutionary patternSummary estimated phylogeny against the accepted fern cladogram. Left phylogeny was inferred by combined matrix (dataset 6, Additional file 1 Table S3) via UCLD models, which is a summary structure of Figure 1. Right phylogeny is accepted fern cladogram based on several sources [33, 34].Back to article page