Journal article
First discovery of the charophycean green alga Lychnothamnus barbatus (Charophyceae) extant in the New World
American journal of botany, v 104(7), pp 1108-1116
01 Jul 2017
PMID: 28751529
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
PREMISE OF THE STUDY: Although some species of Characeae, known as stoneworts, can be found on every continent except Antarctica, many species and some genera have limited geographic distributions. The genus Lychnothamnus, represented by a single extant species L. barbatus, was known only from scattered localities in Europe and Australasia until it was recently discovered in North America.
METHODS: Morphological identifications were made from specimens collected in Minnesota and Wisconsin, USA. DNA sequences were obtained for three plastid-encoded genes (atpB, psbC, rbcL) from seven putative Lychnothamnus samples from two states in the USA Distribution and abundance were estimated in each lake using point intercept surveys where surveyors sampled aquatic vegetation.
KEY RESULTS: Fourteen lakes in Wisconsin and two lakes in Minnesota, USA, were found to harbor L ychnothamnus barbatus. These represent the first report of this rare charophycean extant in the New World. The North American specimens matched the morphological description for L. barbatus and were compared directly with the neotype. Phylogenetic results using three plastid-encoded genes confirmed the identification placing New World samples with those from Europe and Australasia. Our phylogenetic analyses also confirmed the sister relationship between L. barbatus and Nitellopsis obtusa.
CONCLUSIONS: Because this taxon is not known for aggressive invasiveness in its native range, it may have existed in heretofore-undiscovered native populations, although the possibility that it is a recent introduction cannot be eliminated. The potential for discovery of novel lineages of green algae in even well-studied regions is apparently far from exhausted.
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Details
- Title
- First discovery of the charophycean green alga Lychnothamnus barbatus (Charophyceae) extant in the New World
- Creators
- Kenneth G. Karol - New York Botanical GardenPaul M. Skawinski - University of Wisconsin–Stevens PointRichard M. McCourt - Drexel UniversityMichelle E. Nault - Wisconsin Department of Natural ResourcesReesa Evans - Adams County Land & Water Conservation Department, Friendship, Wisconsin 53934 USA.Martha E. Barton - Mississippi State UniversityMatthew S. Berg - Endangered Resources Services, LLC, St. Croix Falls, Wisconsin 54024 USA.Donna J. Perleberg - Minnesota Department of Natural ResourcesJohn D. Hall - Academy of Natural Sciences of Drexel University
- Publication Details
- American journal of botany, v 104(7), pp 1108-1116
- Publisher
- Wiley
- Number of pages
- 9
- Grant note
- 1036466 / Direct For Biological Sciences; National Science Foundation (NSF); NSF - Directorate for Biological Sciences (BIO) DEB-1020660; DEB-1036466; DEB-1020948; DEB-1036478 / National Science Foundation; National Science Foundation (NSF)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Biodiversity, Earth, and Environmental Science (BEES); Academy of Natural Sciences of Drexel University
- Web of Science ID
- WOS:000406691800015
- Scopus ID
- 2-s2.0-85026807285
- Other Identifier
- 991019167803804721
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- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Plant Sciences