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A unique recent origin of the allotetraploid species Arabidopsis suecica: Evidence from nuclear DNA markers

Jakobsson, Mattias LU ; Hagenblad, J; Tavare, S; Säll, Torbjörn LU ; Halldén, Christer LU ; Lind-Hallden, C and Nordborg, M (2006) In Molecular biology and evolution 23(6). p.1217-1231
Abstract
A coalescent-based method was used to investigate the origins of the allotetraploid Arabidopsis suecica, using 52 nuclear microsatellite loci typed in eight individuals of A. suecica and 14 individuals of its maternal parent Arabidopsis thaliana, and four short fragments of genomic DNA sequenced in a sample of four individuals of A. suecica and in both its parental species A. thaliana and Arabidopsis arenosa. All loci were variable in A. thaliana but only 24 of the 52 microsatellite loci and none of the four sequence fragments were variable in A. suecica. We explore a number of possible evolutionary scenarios for A. suecica and conclude that it is likely that A. suecica has a recent, unique origin between 12,000 and 300,000 years ago. The... (More)
A coalescent-based method was used to investigate the origins of the allotetraploid Arabidopsis suecica, using 52 nuclear microsatellite loci typed in eight individuals of A. suecica and 14 individuals of its maternal parent Arabidopsis thaliana, and four short fragments of genomic DNA sequenced in a sample of four individuals of A. suecica and in both its parental species A. thaliana and Arabidopsis arenosa. All loci were variable in A. thaliana but only 24 of the 52 microsatellite loci and none of the four sequence fragments were variable in A. suecica. We explore a number of possible evolutionary scenarios for A. suecica and conclude that it is likely that A. suecica has a recent, unique origin between 12,000 and 300,000 years ago. The time estimates depend strongly on what is assumed about population growth and rates of mutation. When combined with what is known about the history of glaciations, our results suggest that A. suecica originated south of its present distribution in Sweden and Finland and then migrated north, perhaps in the wake of the retreating ice. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
founders, speciation, polymorphism, polyploidy, Arabidopsis suecica, Arabidopsis thaliana
in
Molecular biology and evolution
volume
23
issue
6
pages
1217 - 1231
publisher
Oxford University Press
external identifiers
  • wos:000237696800015
  • pmid:16549398
  • scopus:33646890870
ISSN
0737-4038
DOI
10.1093/molbev/msk006
language
English
LU publication?
yes
id
8b6ed671-9a31-43a6-944c-bb6fa2c4183b (old id 408565)
date added to LUP
2007-10-05 13:37:16
date last changed
2019-02-20 04:48:25
@article{8b6ed671-9a31-43a6-944c-bb6fa2c4183b,
  abstract     = {A coalescent-based method was used to investigate the origins of the allotetraploid Arabidopsis suecica, using 52 nuclear microsatellite loci typed in eight individuals of A. suecica and 14 individuals of its maternal parent Arabidopsis thaliana, and four short fragments of genomic DNA sequenced in a sample of four individuals of A. suecica and in both its parental species A. thaliana and Arabidopsis arenosa. All loci were variable in A. thaliana but only 24 of the 52 microsatellite loci and none of the four sequence fragments were variable in A. suecica. We explore a number of possible evolutionary scenarios for A. suecica and conclude that it is likely that A. suecica has a recent, unique origin between 12,000 and 300,000 years ago. The time estimates depend strongly on what is assumed about population growth and rates of mutation. When combined with what is known about the history of glaciations, our results suggest that A. suecica originated south of its present distribution in Sweden and Finland and then migrated north, perhaps in the wake of the retreating ice.},
  author       = {Jakobsson, Mattias and Hagenblad, J and Tavare, S and Säll, Torbjörn and Halldén, Christer and Lind-Hallden, C and Nordborg, M},
  issn         = {0737-4038},
  keyword      = {founders,speciation,polymorphism,polyploidy,Arabidopsis suecica,Arabidopsis thaliana},
  language     = {eng},
  number       = {6},
  pages        = {1217--1231},
  publisher    = {Oxford University Press},
  series       = {Molecular biology and evolution},
  title        = {A unique recent origin of the allotetraploid species Arabidopsis suecica: Evidence from nuclear DNA markers},
  url          = {http://dx.doi.org/10.1093/molbev/msk006},
  volume       = {23},
  year         = {2006},
}