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. 2021 Oct 15;22:746. doi: 10.1186/s12864-021-07999-z

Fig. 1.

Fig. 1

A Micrographs of six Skeletonema strains. B Phylogenetic tree of Skeletonema inferred from cox1 genes. The six Skeletonema strains in blue were obtained in this study, and their cox1 sequences have been uploaded to NCBI (MW438979-MW438984); the other sequences were downloaded from NCBI GenBank. Phylogenetic trees were generated using the Maximum Likelihood (ML) method with 1000 bootstrap replicates. Evolutionary model was Tamura-Nei model with gamma distribution (G = 0.187)