Evolutionary trends in the seagrass genus Halophila (Thouars): Insights from molecular phylogeny
- UNCW Author/Contributor (non-UNCW co-authors, if there are any, appear on document)
- Wilson Freshwater, Research Specialist (Creator)
- Institution
- The University of North Carolina Wilmington (UNCW )
- Web Site: http://library.uncw.edu/
Abstract: Relationships among members of the seagrass genus Halophila (Hydrocharitaceae)
were investigated using phylogenetic analysis of the internal transcribed spacer (ITS)
region of the nuclear ribosomal DNA. The final aligned ITS sequence data set of 705
base pairs from 36 samples in 11 currently recognised species included 18.7% parsimony
informative characters. Phylogenetic analysis yielded two most parsimonious trees with
strong support for six groups within the genus. Evolutionary trends in Halophila appear
to be toward a more reduced simple phyllotaxy. In addition, this study indicates that long
distance ‘jump’ dispersal between major ocean systems may have occurred at least in the
globally distributed H. decipiens. Results of ITS analyses also indicate that the widespread
pacific species H. ovalis is paraphyletic and may contain cryptic species. Likewise,
the geographically restricted species H. hawaiiana and H. johnsonii could not be
distinguished from H. ovalis with these data and warrant further investigation.
Evolutionary trends in the seagrass genus Halophila (Thouars): Insights from molecular phylogeny
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Additional Information
- Publication
- Waycott, M., Freshwater, D., York, R. A., Calladine, A., & Kenworthy, W. (2002). Evolutionary trends in the seagrass genus Halophila (Thouars): Insights from molecular phylogeny. Bulletin of Marine Science, 71(3), 1299-1308. Retrieved from http://www.ingentaconnect.com/content/umrsmas/bullmar/2002/00000071/00000003/art00016
- Language: English
- Date: 2002
- Keywords
- Halophila, Hydrocharitaceae, Phylogeny--Molecular aspects, Seagrasses--Ecology, Halophila hawaiiana
- Subjects
- Halophila
- Hydrocharitaceae
- Seagrasses--Ecology
- Phylogeny--Molecular aspects
- Hawaii seagrass
Title | Location & Link | Type of Relationship |
Evolutionary trends in the seagrass genus Halophila (Thouars): Insights from molecular phylogeny | http://www.ingentaconnect.com/content/umrsmas/bullmar/2002/00000071/00000003/art00016 | The described resource is a physical or logical part of the related resource. |