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Phylogeography of the European rock rose Helianthemum nummularium (Cistaceae): incongruent patterns of differentiation in plastid DNA and morphology

Soubani, Eman LU ; Hedrén, Mikael LU and Widén, Björn LU (2014) In Botanical Journal of the Linnean Society 176(3). p.311-331
Abstract
Helianthemum nummularium is a morphologically variable species that has been subdivided into several subspecies based on indumentum characters. We investigated four of these subspecies for variation in plastid DNA and leaf and petal shape in Europe. Three size-variable mononucleotide repeat regions were amplified by means of species-specific primers and 18 combined haplotypes were identified. The highest haplotype diversity was found in the Alps and the surrounding lowland areas, whereas marginal areas such as northern Europe and the south-eastern Balkans had a lower diversity. Most of the common haplotypes were shared between subspecies and showed a geographical structuring across the range of the species, whereas geographically... (More)
Helianthemum nummularium is a morphologically variable species that has been subdivided into several subspecies based on indumentum characters. We investigated four of these subspecies for variation in plastid DNA and leaf and petal shape in Europe. Three size-variable mononucleotide repeat regions were amplified by means of species-specific primers and 18 combined haplotypes were identified. The highest haplotype diversity was found in the Alps and the surrounding lowland areas, whereas marginal areas such as northern Europe and the south-eastern Balkans had a lower diversity. Most of the common haplotypes were shared between subspecies and showed a geographical structuring across the range of the species, whereas geographically restricted haplotypes were found elsewhere (e.g. in the Baltic area). Leaf and petal shape descriptors could not differentiate between subspecies. The role of hybridization and introgression between post-glacial migration lineages is discussed. As an alternative hypothesis to introgression between ancient taxa, we suggest that the poor correspondence between plastid haplotype distribution and subspecies circumscription could be a result of multiple origins of similar morphs (grouped into taxonomic subspecies) in different parts of the distribution range of the complex. (c) 2014 The Linnean Society of London, Botanical Journal of the Linnean Society, 2014, 176, 311-331. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
hybridization, introgression, microsatellites, moment invariants, Pleistocene, shape analysis
in
Botanical Journal of the Linnean Society
volume
176
issue
3
pages
311 - 331
publisher
Wiley-Blackwell
external identifiers
  • wos:000343923400003
  • scopus:84911477216
ISSN
1095-8339
DOI
10.1111/boj.12209
language
English
LU publication?
yes
id
d6b7badd-ec5f-4987-95e4-03620782ba43 (old id 4876011)
date added to LUP
2014-12-23 09:43:09
date last changed
2017-05-14 03:17:35
@article{d6b7badd-ec5f-4987-95e4-03620782ba43,
  abstract     = {Helianthemum nummularium is a morphologically variable species that has been subdivided into several subspecies based on indumentum characters. We investigated four of these subspecies for variation in plastid DNA and leaf and petal shape in Europe. Three size-variable mononucleotide repeat regions were amplified by means of species-specific primers and 18 combined haplotypes were identified. The highest haplotype diversity was found in the Alps and the surrounding lowland areas, whereas marginal areas such as northern Europe and the south-eastern Balkans had a lower diversity. Most of the common haplotypes were shared between subspecies and showed a geographical structuring across the range of the species, whereas geographically restricted haplotypes were found elsewhere (e.g. in the Baltic area). Leaf and petal shape descriptors could not differentiate between subspecies. The role of hybridization and introgression between post-glacial migration lineages is discussed. As an alternative hypothesis to introgression between ancient taxa, we suggest that the poor correspondence between plastid haplotype distribution and subspecies circumscription could be a result of multiple origins of similar morphs (grouped into taxonomic subspecies) in different parts of the distribution range of the complex. (c) 2014 The Linnean Society of London, Botanical Journal of the Linnean Society, 2014, 176, 311-331.},
  author       = {Soubani, Eman and Hedrén, Mikael and Widén, Björn},
  issn         = {1095-8339},
  keyword      = {hybridization,introgression,microsatellites,moment invariants,Pleistocene,shape analysis},
  language     = {eng},
  number       = {3},
  pages        = {311--331},
  publisher    = {Wiley-Blackwell},
  series       = {Botanical Journal of the Linnean Society},
  title        = {Phylogeography of the European rock rose Helianthemum nummularium (Cistaceae): incongruent patterns of differentiation in plastid DNA and morphology},
  url          = {http://dx.doi.org/10.1111/boj.12209},
  volume       = {176},
  year         = {2014},
}