Fig. 7

Neighbour-joining tree inferred from 12 rbcL gene sequences (610 bp). The numbers at the nodes indicate bootstrap values as a percentage greater than 50% obtained using distance as an optimality criterion with 500 replicates. The sequence determined in this study is indicated in bold. The sequences of Ulva australis and Ulva linza were designated as outgroup. The GenBank accession numbers are reported for each sequence. The scale marker represents 0.1 nucleotide substitution per sequence position