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Genetic differentiation and postglacial migration of the Dactylorhiza majalis ssp traunsteineri/lapponica complex into Fennoscandia

Olofsson, Sofie LU and Hedrén, Mikael LU (2008) In Plant Systematics and Evolution 276(1-2). p.73-87
Abstract
Eight variable regions (microsatellites, insertion/deletion and duplication regions) from the plastid DNA genome were analyzed for 91 populations belonging to Dactylorhiza majalis ssp. traunsteineri and closely related taxa. A total of 36 composite plastid haplotypes were found. The two dominating haplotypes had a clear geographic distribution suggesting at least two separate immigration routes into Scandinavia after the last glaciation: one southwestern route and one or two southeastern routes. D. majalis ssp. traunsteineri could not be clearly separated from any of the other taxa included in the study except for D. majalis ssp. sphagnicola. The morphologically similar taxa D. majalis ssp. traunsteineri, D. majalis ssp. lapponica and D.... (More)
Eight variable regions (microsatellites, insertion/deletion and duplication regions) from the plastid DNA genome were analyzed for 91 populations belonging to Dactylorhiza majalis ssp. traunsteineri and closely related taxa. A total of 36 composite plastid haplotypes were found. The two dominating haplotypes had a clear geographic distribution suggesting at least two separate immigration routes into Scandinavia after the last glaciation: one southwestern route and one or two southeastern routes. D. majalis ssp. traunsteineri could not be clearly separated from any of the other taxa included in the study except for D. majalis ssp. sphagnicola. The morphologically similar taxa D. majalis ssp. traunsteineri, D. majalis ssp. lapponica and D. majalis ssp. russowii showed no genetic differentiation, and therefore we suggest an amalgamation of the three taxa into one broadly circumscribed subspecies; D. majalis ssp. lapponica. The plastid data also revealed incidents of hybridization and possible introgression between D. majalis ssp. lapponica and other members of the genus, e.g., D. incarnata. (Less)
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author
organization
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type
Contribution to journal
publication status
published
subject
keywords
Dactylorhiza traunsteineri, Lapland marsh-orchid, Narrow-leaved marsh-orchid, Hybridization, Phylogeography, Plastid DNA, Dactylorhiza, russowii, Dactylorhiza lapponica
in
Plant Systematics and Evolution
volume
276
issue
1-2
pages
73 - 87
publisher
Springer
external identifiers
  • wos:000260880000008
  • scopus:56249135544
ISSN
1615-6110
DOI
10.1007/s00606-008-0084-1
language
English
LU publication?
yes
id
fde39f2d-141a-4b76-b66c-e3beef63b14e (old id 1278994)
date added to LUP
2009-02-10 13:05:34
date last changed
2017-09-10 03:32:10
@article{fde39f2d-141a-4b76-b66c-e3beef63b14e,
  abstract     = {Eight variable regions (microsatellites, insertion/deletion and duplication regions) from the plastid DNA genome were analyzed for 91 populations belonging to Dactylorhiza majalis ssp. traunsteineri and closely related taxa. A total of 36 composite plastid haplotypes were found. The two dominating haplotypes had a clear geographic distribution suggesting at least two separate immigration routes into Scandinavia after the last glaciation: one southwestern route and one or two southeastern routes. D. majalis ssp. traunsteineri could not be clearly separated from any of the other taxa included in the study except for D. majalis ssp. sphagnicola. The morphologically similar taxa D. majalis ssp. traunsteineri, D. majalis ssp. lapponica and D. majalis ssp. russowii showed no genetic differentiation, and therefore we suggest an amalgamation of the three taxa into one broadly circumscribed subspecies; D. majalis ssp. lapponica. The plastid data also revealed incidents of hybridization and possible introgression between D. majalis ssp. lapponica and other members of the genus, e.g., D. incarnata.},
  author       = {Olofsson, Sofie and Hedrén, Mikael},
  issn         = {1615-6110},
  keyword      = {Dactylorhiza traunsteineri,Lapland marsh-orchid,Narrow-leaved marsh-orchid,Hybridization,Phylogeography,Plastid DNA,Dactylorhiza,russowii,Dactylorhiza lapponica},
  language     = {eng},
  number       = {1-2},
  pages        = {73--87},
  publisher    = {Springer},
  series       = {Plant Systematics and Evolution},
  title        = {Genetic differentiation and postglacial migration of the Dactylorhiza majalis ssp traunsteineri/lapponica complex into Fennoscandia},
  url          = {http://dx.doi.org/10.1007/s00606-008-0084-1},
  volume       = {276},
  year         = {2008},
}