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Phylogeography of the European rock rose Helianthemum nummularium s.l. (Cistaceae) : western richness and eastern poverty

Volkova, Polina A.; Schanzer, Ivan A.; Soubani, Eman LU ; Meschersky, Ilya G. and Widén, Björn LU (2016) In Plant Systematics and Evolution 302(7). p.781-794
Abstract

Helianthemum nummularium s.l. is a young, morphologically diverse species distributed from western Europe to the Caucasus and the Southern Urals in the east. We analysed the rps16-trnK plastid intergenic spacer sequences from 85 localities covering most of the range of H. nummularium. Thirteen haplotypes were very unevenly distributed throughout the range of the species, and exhibited a strong phylogeographic signal. The results confirm range expansions of H. nummularium from Mediterranean refugia northwards, but also show the major role of eastern European (the Caucasus and the Southern Urals) refugia in rapid postglacial colonization of east, north and central Europe. The plastid haplotypes form distinct clades, one representing an... (More)

Helianthemum nummularium s.l. is a young, morphologically diverse species distributed from western Europe to the Caucasus and the Southern Urals in the east. We analysed the rps16-trnK plastid intergenic spacer sequences from 85 localities covering most of the range of H. nummularium. Thirteen haplotypes were very unevenly distributed throughout the range of the species, and exhibited a strong phylogeographic signal. The results confirm range expansions of H. nummularium from Mediterranean refugia northwards, but also show the major role of eastern European (the Caucasus and the Southern Urals) refugia in rapid postglacial colonization of east, north and central Europe. The plastid haplotypes form distinct clades, one representing an eastern European lineage with few haplotypes and the other representing a western European lineage with many haplotypes. Parallel to this split in haplotype diversity is the pronounced differentiation in morphological variation displayed by the taxa found in west and east Europe. We discuss the role of topography in generating differences in morphological and genetic diversity between these two groups. We also discuss the taxonomical status of Helianthemum arcticum, which is regarded as an endangered local endemic of the Kola Peninsula. Helianthemum arcticum appears to represent an outlying peripheral population of H. nummularium preserved since the last postglacial major range expansion of this species, and bears the same plastid haplotype as the bulk of east and north European populations.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Endangered species, Helianthemum, Peripheral populations, Phylogeography, rps16-trnK
in
Plant Systematics and Evolution
volume
302
issue
7
pages
14 pages
publisher
Springer
external identifiers
  • scopus:84978387826
  • wos:000379851600003
ISSN
0378-2697
DOI
10.1007/s00606-016-1299-1
language
English
LU publication?
yes
id
f4c72f7d-fbd0-4872-9489-f06e29ec3767
date added to LUP
2016-12-15 11:19:47
date last changed
2017-09-18 11:31:25
@article{f4c72f7d-fbd0-4872-9489-f06e29ec3767,
  abstract     = {<p>Helianthemum nummularium s.l. is a young, morphologically diverse species distributed from western Europe to the Caucasus and the Southern Urals in the east. We analysed the rps16-trnK plastid intergenic spacer sequences from 85 localities covering most of the range of H. nummularium. Thirteen haplotypes were very unevenly distributed throughout the range of the species, and exhibited a strong phylogeographic signal. The results confirm range expansions of H. nummularium from Mediterranean refugia northwards, but also show the major role of eastern European (the Caucasus and the Southern Urals) refugia in rapid postglacial colonization of east, north and central Europe. The plastid haplotypes form distinct clades, one representing an eastern European lineage with few haplotypes and the other representing a western European lineage with many haplotypes. Parallel to this split in haplotype diversity is the pronounced differentiation in morphological variation displayed by the taxa found in west and east Europe. We discuss the role of topography in generating differences in morphological and genetic diversity between these two groups. We also discuss the taxonomical status of Helianthemum arcticum, which is regarded as an endangered local endemic of the Kola Peninsula. Helianthemum arcticum appears to represent an outlying peripheral population of H. nummularium preserved since the last postglacial major range expansion of this species, and bears the same plastid haplotype as the bulk of east and north European populations.</p>},
  author       = {Volkova, Polina A. and Schanzer, Ivan A. and Soubani, Eman and Meschersky, Ilya G. and Widén, Björn},
  issn         = {0378-2697},
  keyword      = {Endangered species,Helianthemum,Peripheral populations,Phylogeography,rps16-trnK},
  language     = {eng},
  month        = {08},
  number       = {7},
  pages        = {781--794},
  publisher    = {Springer},
  series       = {Plant Systematics and Evolution},
  title        = {Phylogeography of the European rock rose Helianthemum nummularium s.l. (Cistaceae) : western richness and eastern poverty},
  url          = {http://dx.doi.org/10.1007/s00606-016-1299-1},
  volume       = {302},
  year         = {2016},
}