Sibling species of fragrant orchids (Gymnadenia: Orchidaceae, Magnoliophyta) in Russia

Sibling species of fragrant orchids (Gymnadenia: Orchidaceae, Magnoliophyta) in Russia Recent molecular phylogenetic studies of the genus Gymnadenia have demonstrated that it contains sibling taxa, i.e., species that are hardly distinguishable according to morphological traits, yet are phylogenetically rather distant and distinctly distinguishable by molecular methods, which is a rare phenomenon for angiosperms. By sequencing the ITS1-5.8S rDNA-ITS2 fragment the presence of G. densiflora was confirmed for Russia. Our data supported a high degree of genetic differentiation between G. conopsea s. str. and G. densiflora, which confirms their taxonomic rank of species. Morphological analysis has shown that the features that are best for the discrimination between these two species in Northwestern Russia are the length of the lower bract, length of the mid-lobe of the lip, and width of leaves. The ecological and phenological differentiation between G. conopsea s. str. and G. densiflora is briefly reviewed. The ITS sequence variation in these species has been analyzed; the molecular genetic differences of the G. conopsea individuals from the eastern part of the distribution area have been discovered for the first time. Different taxonomic interpretations of Gymnadenia phylogenetic tree topology taking into account the presence of sibling species are discussed in general. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

Sibling species of fragrant orchids (Gymnadenia: Orchidaceae, Magnoliophyta) in Russia

Loading next page...
 
/lp/springer_journal/sibling-species-of-fragrant-orchids-gymnadenia-orchidaceae-Mbbogx0tFc
Publisher
SP MAIK Nauka/Interperiodica
Copyright
Copyright © 2013 by Pleiades Publishing, Ltd.
Subject
Biomedicine; Human Genetics; Animal Genetics and Genomics; Microbial Genetics and Genomics
ISSN
1022-7954
eISSN
1608-3369
D.O.I.
10.1134/S102279541302004X
Publisher site
See Article on Publisher Site

Abstract

Recent molecular phylogenetic studies of the genus Gymnadenia have demonstrated that it contains sibling taxa, i.e., species that are hardly distinguishable according to morphological traits, yet are phylogenetically rather distant and distinctly distinguishable by molecular methods, which is a rare phenomenon for angiosperms. By sequencing the ITS1-5.8S rDNA-ITS2 fragment the presence of G. densiflora was confirmed for Russia. Our data supported a high degree of genetic differentiation between G. conopsea s. str. and G. densiflora, which confirms their taxonomic rank of species. Morphological analysis has shown that the features that are best for the discrimination between these two species in Northwestern Russia are the length of the lower bract, length of the mid-lobe of the lip, and width of leaves. The ecological and phenological differentiation between G. conopsea s. str. and G. densiflora is briefly reviewed. The ITS sequence variation in these species has been analyzed; the molecular genetic differences of the G. conopsea individuals from the eastern part of the distribution area have been discovered for the first time. Different taxonomic interpretations of Gymnadenia phylogenetic tree topology taking into account the presence of sibling species are discussed in general.

Journal

Russian Journal of GeneticsSpringer Journals

Published: Mar 26, 2013

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off