Recent genetic studies of the Bangiales (Rhodophyta) led to the resurrection of the marine red algal genus Wildemania De Toni. To gain a better understanding of the phylogenetic history of this genus and its plastid genome structure, the holotype specimen of Wildemania schizophylla (Hollenberg) S. C. Lindstrom was analyzed using next generation sequencing technology. The plastid genome of W. schizophylla is 193,008 bp in length and contains 249 genes, including 47 ribosomal, 34 tRNA, 29 photosystem, 27 open reading frames, 25 hypothetical proteins, 10 phycobiliprotein, 8 ATP synthase, and 8 cytochrome b/f complex genes. The plastid genome shows similar organization and content to other Bangiaceae, except that it lacks the typical 16S and 23S ribosomal RNA repeat. Phylogenetic analysis of the W. schizophylla plastid genome against other Bangiaceae places W. schizophylla in a robustly supported position, intermediate between Porphyra C. Agardh and Pyropia J. Agardh. These data support the recent resurrection of the genus Wildemania. Plastid genome analysis of the holotype specimen of W. schizophylla generated an authentic barcode that can be used for future taxonomic studies. Comparison of the rbcL sequence from the type material of W. schizophylla confirms it is endemic to California.
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Vol. 63 • No. 1