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Genetic variation in Scandinavian Anthericum liliago (Anthericaceae): allopolyploidy, hybridization and immigration history

Rosquist, Gabrielle LU and Prentice, Honor C LU (2002) In Plant Systematics and Evolution 236(1-2). p.55-72
Abstract
We investigated patterns of isozyme variation and the hierarchic structure of genetic diversity in 25 Scandinavian populations of the lilioid herb, Anthericum liliago. Isozyme data suggest that tetraploid A. liliago has an allopolyploid origin and that A. ramosum may be one of its diploid progenitors. Two populations contained known or suspected hybrids between A. liliago and A. ramosum. Isozymes show that one population from S Sweden contains both triploid (hybrid) and tetraploid individuals whereas a putatively hybrid Danish population represents diploid A. liliago. There is an overall northward and eastward decline in allelic richness in the tetraploid populations, with the highest numbers of alleles in Denmark and SW Sweden. This... (More)
We investigated patterns of isozyme variation and the hierarchic structure of genetic diversity in 25 Scandinavian populations of the lilioid herb, Anthericum liliago. Isozyme data suggest that tetraploid A. liliago has an allopolyploid origin and that A. ramosum may be one of its diploid progenitors. Two populations contained known or suspected hybrids between A. liliago and A. ramosum. Isozymes show that one population from S Sweden contains both triploid (hybrid) and tetraploid individuals whereas a putatively hybrid Danish population represents diploid A. liliago. There is an overall northward and eastward decline in allelic richness in the tetraploid populations, with the highest numbers of alleles in Denmark and SW Sweden. This pattern is consistent with a progressive loss of allelic variation during the species' postglacial colonization of Scandinavia. The between-population component of genetic diversity is 4% (compared with 12% in diploid A. ramosum), the between-region diversity component is 7% and 89% of the total diversity is stored within populations. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Plant Systematics and Evolution
volume
236
issue
1-2
pages
55 - 72
publisher
Springer
external identifiers
  • wos:000180234400005
  • scopus:0036931709
ISSN
1615-6110
DOI
10.1007/s00606-002-0238-5
language
English
LU publication?
yes
id
9f29939e-c6cb-4b75-a726-0483ba09ec87 (old id 137702)
date added to LUP
2007-07-02 13:54:50
date last changed
2017-01-01 05:13:02
@article{9f29939e-c6cb-4b75-a726-0483ba09ec87,
  abstract     = {We investigated patterns of isozyme variation and the hierarchic structure of genetic diversity in 25 Scandinavian populations of the lilioid herb, Anthericum liliago. Isozyme data suggest that tetraploid A. liliago has an allopolyploid origin and that A. ramosum may be one of its diploid progenitors. Two populations contained known or suspected hybrids between A. liliago and A. ramosum. Isozymes show that one population from S Sweden contains both triploid (hybrid) and tetraploid individuals whereas a putatively hybrid Danish population represents diploid A. liliago. There is an overall northward and eastward decline in allelic richness in the tetraploid populations, with the highest numbers of alleles in Denmark and SW Sweden. This pattern is consistent with a progressive loss of allelic variation during the species' postglacial colonization of Scandinavia. The between-population component of genetic diversity is 4% (compared with 12% in diploid A. ramosum), the between-region diversity component is 7% and 89% of the total diversity is stored within populations.},
  author       = {Rosquist, Gabrielle and Prentice, Honor C},
  issn         = {1615-6110},
  language     = {eng},
  number       = {1-2},
  pages        = {55--72},
  publisher    = {Springer},
  series       = {Plant Systematics and Evolution},
  title        = {Genetic variation in Scandinavian Anthericum liliago (Anthericaceae): allopolyploidy, hybridization and immigration history},
  url          = {http://dx.doi.org/10.1007/s00606-002-0238-5},
  volume       = {236},
  year         = {2002},
}