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Plastid DNA microsatellite data do not support recognition of subspecies of Coeloglossum viride (L.)Hartm. (Orchidaceae) in northern Europe

Hedrén, Mikael LU and Pedersen, Henrik (2016) In Symbolae Botanicae Upsalienses 38. p.81-91
Abstract (Swedish)
The orchid Coeloglossum viride (L.) Hartm. has a circumboreal distribution and is widespread in the Nordic countries, especially in the boreal and montane regions. Whereas plants from the lowlands are generally slender and have greenish-yellowish flowers, plants from mountain areas tend to be low-growing with fewer, reddish-brown flowers, leading some authors to recognize the latter as a separate subspecies, C. viride subsp. islandica (Lindl.) Kreutz. In course of collecting data for the treatment of the Orchidaceae in the Flora Nordica, we have analysed material of C. viride for plastid microsatellite variation in order to assess the taxonomic justification of subsp. islandica. We found two major groups of haplotypes in C. viride in the... (More)
The orchid Coeloglossum viride (L.) Hartm. has a circumboreal distribution and is widespread in the Nordic countries, especially in the boreal and montane regions. Whereas plants from the lowlands are generally slender and have greenish-yellowish flowers, plants from mountain areas tend to be low-growing with fewer, reddish-brown flowers, leading some authors to recognize the latter as a separate subspecies, C. viride subsp. islandica (Lindl.) Kreutz. In course of collecting data for the treatment of the Orchidaceae in the Flora Nordica, we have analysed material of C. viride for plastid microsatellite variation in order to assess the taxonomic justification of subsp. islandica. We found two major groups of haplotypes in C. viride in the Flora Nordica area. The two groups were widespread in both mountain and lowland regions in Scandinavia, but only one of the groups was present in material from Iceland. Accordingly, plastid microsatellite data give no support for the recognition of mountain/Icelandic plants as a separate taxon. Based on the distribution of haplotypes and their relationships, we suggest that the present-day population of C. viride in the Nordic countries originated from populations in refugia close to the Weichselian ice sheet. (Less)
Abstract
The orchid Coeloglossum viride (L.) Hartm. has a circumboreal distribution and is widespread in the Nordic countries, especially in the boreal and montane regions. Whereas plants from the lowlands are generally slender and have greenish-yellowish flowers, plants from mountain areas tend to be low-growing with fewer, reddish-brown flowers, leading some authors to recognize the latter as a separate subspecies, C. viride subsp. islandica (Lindl.) Kreutz. In course of collecting data for the treatment of the Orchidaceae in the Flora Nordica, we have analysed material of C. viride for plastid microsatellite variation in order to assess the taxonomic justification of subsp. islandica. We found two major groups of haplotypes in C. viride in the... (More)
The orchid Coeloglossum viride (L.) Hartm. has a circumboreal distribution and is widespread in the Nordic countries, especially in the boreal and montane regions. Whereas plants from the lowlands are generally slender and have greenish-yellowish flowers, plants from mountain areas tend to be low-growing with fewer, reddish-brown flowers, leading some authors to recognize the latter as a separate subspecies, C. viride subsp. islandica (Lindl.) Kreutz. In course of collecting data for the treatment of the Orchidaceae in the Flora Nordica, we have analysed material of C. viride for plastid microsatellite variation in order to assess the taxonomic justification of subsp. islandica. We found two major groups of haplotypes in C. viride in the Flora Nordica area. The two groups were widespread in both mountain and lowland regions in Scandinavia, but only one of the groups was present in material from Iceland. Accordingly, plastid microsatellite data give no support for the recognition of mountain/Icelandic plants as a separate taxon. Based on the distribution of haplotypes and their relationships, we suggest that the present-day population of C. viride in the Nordic countries originated from populations in refugia close to the Weichselian ice sheet. (Less)
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Contribution to journal
publication status
published
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in
Symbolae Botanicae Upsalienses
volume
38
pages
81 - 91
publisher
Acta Universitatis Upsaliensis
ISSN
0082-0644
language
English
LU publication?
yes
id
d360c4d0-db58-486a-acaa-ce82b4e5a521
date added to LUP
2018-11-05 13:52:47
date last changed
2018-11-21 21:42:59
@article{d360c4d0-db58-486a-acaa-ce82b4e5a521,
  abstract     = {The orchid Coeloglossum viride (L.) Hartm. has a circumboreal distribution and is widespread in the Nordic countries, especially in the boreal and montane regions. Whereas plants from the lowlands are generally slender and have greenish-yellowish flowers, plants from mountain areas tend to be low-growing with fewer, reddish-brown flowers, leading some authors to recognize the latter as a separate subspecies, C. viride subsp. islandica (Lindl.) Kreutz. In course of collecting data for the treatment of the Orchidaceae in the Flora Nordica, we have analysed material of C. viride for plastid microsatellite variation in order to assess the taxonomic justification of subsp. islandica. We found two major groups of haplotypes in C. viride in the Flora Nordica area. The two groups were widespread in both mountain and lowland regions in Scandinavia, but only one of the groups was present in material from Iceland. Accordingly, plastid microsatellite data give no support for the recognition of mountain/Icelandic plants as a separate taxon. Based on the distribution of haplotypes and their relationships, we suggest that the present-day population of C. viride in the Nordic countries originated from populations in refugia close to the Weichselian ice sheet.},
  author       = {Hedrén, Mikael and Pedersen, Henrik},
  issn         = {0082-0644},
  language     = {eng},
  pages        = {81--91},
  publisher    = {Acta Universitatis Upsaliensis},
  series       = {Symbolae Botanicae Upsalienses},
  title        = {Plastid DNA microsatellite data do not support recognition of subspecies of Coeloglossum viride (L.)Hartm. (Orchidaceae) in northern Europe},
  volume       = {38},
  year         = {2016},
}