Alignment_complete_rbcL_Eunotia

Alignment of complete rbcL sequences of the Eunotia bilunaris/flexuosa complex used for phylogeny reconstruction (Fig. S1)

BI_consensus_phylogeny_cox1_Sellaphora_capitata

Tree file of Sellaphora Bayesian Inference phylogeny based on partial cox1 sequences (Fig. S2)

MLG_data_Sellaphora_capitata

Microsatellite allelic composition of Sellaphora capitata strains

MLG_data_Ebilunaris_robust

Microsatellite allelic composition of Eunotia bilunaris "robust" strains

Isolation_by_distance

Matrices of pairwise standardized Fst values and (log-transformed) geographic distances between sampling locations of Eunotia bilunaris "robust" and Sellaphora capitata respectively, for assessment of isolation-by-distance patterns (Fig. 3)

Alignment_cox1_Sellaphora_capitata

Alignment of partial cox1 sequences of Sellaphora used for phylogeny reconstruction (Fig. S2)

Alignment_partial_rbcL_Eunotia

Partial rbcL sequences of Eunotia bilunaris "robust" strains used for phylogeography of the species in Western Europe (Fig. 2)