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Phylogenetic relationships within the tribe Janieae (Corallinales, Rhodophyta) based on molecular and morphological data: a reappraisal of Jania1
Article first published online: 7 DEC 2007
© 2007 Phycological Society of America
Journal of Phycology
Volume 43, Issue 6, pages 1310–1319, December 2007
How to Cite
Kim, J. H., Guiry, M. D., Oak, J. H., Choi, D.-S., Kang, S.-H., Chung, H. and Choi, H.-G. (2007), Phylogenetic relationships within the tribe Janieae (Corallinales, Rhodophyta) based on molecular and morphological data: a reappraisal of Jania. Journal of Phycology, 43: 1310–1319. doi: 10.1111/j.1529-8817.2007.00410.x
Received 11 October 2006. Accepted 31 May 2007.
- Issue published online: 7 DEC 2007
- Article first published online: 7 DEC 2007
- nuclear SSU rDNA;
Generic boundaries among the genera Cheilosporum, Haliptilon, and Jania—currently referred to the tribe Janieae (Corallinaceae, Corallinales, Rhodophyta)—were reassessed. Phylogenetic relationships among 42 corallinoidean taxa were determined based on 26 anatomical characters and nuclear SSU rDNA sequence data for 11 species (with two duplicate plants) referred to the tribe Corallineae and 15 species referred to the tribe Janieae (two species of Cheilosporum, seven of Haliptilon, and six of Jania, with five duplicate plants). Results from our approach were consistent with the hypothesis that the tribe Janieae is monophyletic. Our data indicate, however, that Jania and Haliptilon as currently delimited are not monophyletic, and that Cheilosporum should not be recognized as an independent genus within the Janieae. Our data resolved two well-supported biogeographic clades for the included Janieae, an Indian-Pacific clade and a temperate North Atlantic clade. Among anatomical characters, reproductive structures reflected the evolution of the Janieae. Based on our results, three genera, Cheilosporum, Haliptilon, and Jania, should be merged into a single genus, with Jania having nomenclatural priority. We therefore propose new combinations where necessary of some species previously included in Cheilosporum and Haliptilon.