Differentiation of two hemp nettle species (Galeopsis bifida Boenn. and G. tetrahit L.) inferred from morphological characters and DNA markers

Differentiation of two hemp nettle species (Galeopsis bifida Boenn. and G. tetrahit L.) inferred... Two species of the genus Galeopsis L., G. tetrahit L. and G. bifida Boenn. (family Lamiaceae), are problematic to distinguish often wrongly recognized, and treated by some taxonomists as a single species. Morphological diagnostical characters of these species are variable and partly overlap. Species independence of G. tetrahit and G. bifida was evaluated and their diagnostic characters verified using ISSR and RAPD markers. A total of 57 ISSR and 28 RAPD fragments were obtained providing distinct subdivision of the accessions examined into two groups. Analysis of molecular data using the neighbor-joining method showed that the accessions studied fell into two clades in the same way as demonstrated by the analysis of 20 morphological characters using single linkage method. These results suggest that G. tetrahit and G. bifida are distinct species. The morphological characters were found to be more variable compared to the molecular markers, although the combined of these characters provided differentiation of the species. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

Differentiation of two hemp nettle species (Galeopsis bifida Boenn. and G. tetrahit L.) inferred from morphological characters and DNA markers

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Publisher
SP MAIK Nauka/Interperiodica
Copyright
Copyright © 2008 by Pleiades Publishing, Ltd.
Subject
Biomedicine; Microbial Genetics and Genomics; Animal Genetics and Genomics; Human Genetics
ISSN
1022-7954
eISSN
1608-3369
D.O.I.
10.1134/S1022795408030113
Publisher site
See Article on Publisher Site

Abstract

Two species of the genus Galeopsis L., G. tetrahit L. and G. bifida Boenn. (family Lamiaceae), are problematic to distinguish often wrongly recognized, and treated by some taxonomists as a single species. Morphological diagnostical characters of these species are variable and partly overlap. Species independence of G. tetrahit and G. bifida was evaluated and their diagnostic characters verified using ISSR and RAPD markers. A total of 57 ISSR and 28 RAPD fragments were obtained providing distinct subdivision of the accessions examined into two groups. Analysis of molecular data using the neighbor-joining method showed that the accessions studied fell into two clades in the same way as demonstrated by the analysis of 20 morphological characters using single linkage method. These results suggest that G. tetrahit and G. bifida are distinct species. The morphological characters were found to be more variable compared to the molecular markers, although the combined of these characters provided differentiation of the species.

Journal

Russian Journal of GeneticsSpringer Journals

Published: Jan 19, 2011

References

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