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A unique recent ori...
A unique recent origin of the allotetraploid species Arabidopsis suecica: Evidence from nuclear DNA markers
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- Jakobsson, Mattias (författare)
- Lund University,Lunds universitet,Biologiska institutionen,Naturvetenskapliga fakulteten,Department of Biology,Faculty of Science,University of Michigan, Ann Arbor,University of Michigan, Ann Arbor,Department of Human Genetics University of Michigan
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- Hagenblad, Jenny, 1974- (författare)
- Linköpings universitet,Institutionen för fysik, kemi och biologi,Tekniska högskolan
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- Tavare, S (författare)
- University of Southern California,Molecular and Computational Biology University of Southern California
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- Säll, Torbjörn (författare)
- Lund University,Lunds universitet,MEMEG,Biologiska institutionen,Naturvetenskapliga fakulteten,Department of Biology,Faculty of Science,Department of Cell and Organism Biology, Genetics Lund University, Sweden
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- Halldén, Christer (författare)
- Kristianstad University,Lund University,Lunds universitet,Klinisk kemi, Malmö,Forskargrupper vid Lunds universitet,Clinical Chemistry, Malmö,Lund University Research Groups,Malmö University Hospital,Biomedicin,Malmö universitetssjukhus,Department of Clinical Chemistry Malmö university, Sweden
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Lind-Hallden, C (författare)
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- Nordborg, M (författare)
- University of Southern California,Molecular and Computational Biology University of Southern California
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(creator_code:org_t)
- 2006-03-20
- 2006
- Engelska.
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Ingår i: Molecular biology and evolution. - : Oxford University Press (OUP). - 0737-4038 .- 1537-1719. ; 23:6, s. 1217-1231
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Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Läkemedelskemi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Medicinal Chemistry (hsv//eng)
Nyckelord
- founders
- speciation
- polymorphism
- polyploidy
- Arabidopsis suecica
- Arabidopsis thaliana
- Arabidopsis suecica • Arabidopsis thaliana • polyploidy • polymorphism • speciation • founders
- NATURAL SCIENCES
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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