Advanced

Structure of allozyme variation in Nordic Silene nutans (Caryophyllaceae): population size, geographical position and immigration history

Van Rossum, F and Prentice, Honor C LU (2004) In Biological Journal of the Linnean Society 81(3). p.357-371
Abstract
We investigated allozyme variation in 34 populations of the perennial herb Silene nutans from Sweden and northern Finland, areas that were ice-covered during the last (Weichselian) glaciation. The present geographical structure of genetic variation in S. nutans in Sweden and northern Finland appears to have been mainly shaped by ancient historical processes. Patterns of variation in allele frequencies suggest two major postglacial immigration routes into Sweden, with populations entering the area from both the south and the east and forming a contact zone with admixed populations in central Sweden. While estimates of within-population genetic diversity and allelic richness are significantly correlated with present population size and... (More)
We investigated allozyme variation in 34 populations of the perennial herb Silene nutans from Sweden and northern Finland, areas that were ice-covered during the last (Weichselian) glaciation. The present geographical structure of genetic variation in S. nutans in Sweden and northern Finland appears to have been mainly shaped by ancient historical processes. Patterns of variation in allele frequencies suggest two major postglacial immigration routes into Sweden, with populations entering the area from both the south and the east and forming a contact zone with admixed populations in central Sweden. While estimates of within-population genetic diversity and allelic richness are significantly correlated with present population size and geographical position (latitude), population size is not correlated with latitude. Low genetic diversity in the northern populations is more likely to have resulted from ancient stochastic events during the process of immigration than from recent population fragmentation. F-IS values are high and increase with latitude. Evidence of recent bottlenecks was detected in several southern Swedish populations: these can be interpreted in terms of population fragmentation as a result of anthropogenic disturbance. Soil pH is uncorrelated with population size and position. (C) 2004 The Linnean Society of London, (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Biological Journal of the Linnean Society
volume
81
issue
3
pages
357 - 371
publisher
Linnean Society of London
external identifiers
  • wos:000220505200004
  • scopus:1642373354
ISSN
0024-4066
DOI
10.1111/j.1095-8312.2003.00301.x
language
English
LU publication?
yes
id
e7b23926-0eff-435a-9ebc-0746eb720b90 (old id 137504)
date added to LUP
2007-07-02 15:59:59
date last changed
2017-10-22 03:33:18
@article{e7b23926-0eff-435a-9ebc-0746eb720b90,
  abstract     = {We investigated allozyme variation in 34 populations of the perennial herb Silene nutans from Sweden and northern Finland, areas that were ice-covered during the last (Weichselian) glaciation. The present geographical structure of genetic variation in S. nutans in Sweden and northern Finland appears to have been mainly shaped by ancient historical processes. Patterns of variation in allele frequencies suggest two major postglacial immigration routes into Sweden, with populations entering the area from both the south and the east and forming a contact zone with admixed populations in central Sweden. While estimates of within-population genetic diversity and allelic richness are significantly correlated with present population size and geographical position (latitude), population size is not correlated with latitude. Low genetic diversity in the northern populations is more likely to have resulted from ancient stochastic events during the process of immigration than from recent population fragmentation. F-IS values are high and increase with latitude. Evidence of recent bottlenecks was detected in several southern Swedish populations: these can be interpreted in terms of population fragmentation as a result of anthropogenic disturbance. Soil pH is uncorrelated with population size and position. (C) 2004 The Linnean Society of London,},
  author       = {Van Rossum, F and Prentice, Honor C},
  issn         = {0024-4066},
  language     = {eng},
  number       = {3},
  pages        = {357--371},
  publisher    = {Linnean Society of London},
  series       = {Biological Journal of the Linnean Society},
  title        = {Structure of allozyme variation in Nordic Silene nutans (Caryophyllaceae): population size, geographical position and immigration history},
  url          = {http://dx.doi.org/10.1111/j.1095-8312.2003.00301.x},
  volume       = {81},
  year         = {2004},
}