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PHYLOGENETIC UTILITY OFrbcS SEQUENCES: AN EXAMPLE FROMANTITHAMNIONAND RELATED GENERA (CERAMIACEAE, RHODOPHYTA)

Authors :
Jung Hyun Oak
Youngbae Suh
In Kyu Lee
Sang-Rae Lee
Source :
Journal of Phycology. 37:1083-1090
Publication Year :
2001
Publisher :
Wiley, 2001.

Abstract

We report the potential phylogenetic utility of the small RUBISCO subunit (rbc S) sequences from a sampling of Antithamnion and related genera in ceramiacean algae. The size of rbc S was 417 bp for all taxa examined. Analyses of the DNA sequence data indicated that pairwise divergences of rbc S sequences were 3.3%–9.8% among species of Antithamnion, and ranged from 13.6% to 18.0% between Antithamnion and related genera. Phylogenetic analyses fully resolved relationships at the intrageneric level with statistical significance supported by high bootstrap values. Two subgenera of Antithamnion, Pteroton and Antithamnion, were clearly distinguished in the molecular tree. In the clade of subgenus Pteroton, A. aglandum was allied with A. callocladum and separated from A. nipponicum. In the pairwise distance comparison of sequence variation, Ceramium showed the greatest genetic distances among genera examined in the study. All phylogenetic trees generated by the maximum parsimony, neighbor joining, and maximum likelihood were completely congruent in topology with high confidence.

Details

ISSN :
15298817 and 00223646
Volume :
37
Database :
OpenAIRE
Journal :
Journal of Phycology
Accession number :
edsair.doi...........2511548aaca2b3ed4cdae22e24fec523
Full Text :
https://doi.org/10.1046/j.1529-8817.2001.01038.x