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Chloroplast DNA ind...
Chloroplast DNA indicates a single origin of the allotetraploid Arabidopsis suecica
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- Säll, T. (författare)
- Department of Cell and Organism Biology, Genetics, Lund University
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- Jakobsson, M. (författare)
- Department of Cell and Organism Biology, Genetics, Lund University
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- Lind-Halldén, Christina, 1959- (författare)
- Högskolan Kristianstad,Institutionen för matematik och naturvetenskap,Biomedicin
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- Halldén, Christer, 1957- (författare)
- Lund University,Lunds universitet,Klinisk kemi, Malmö,Forskargrupper vid Lunds universitet,Clinical Chemistry, Malmö,Lund University Research Groups
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- Jakobsson, Mattias (författare)
- Lund University,Lunds universitet,Biologiska institutionen,Naturvetenskapliga fakulteten,Department of Biology,Faculty of Science
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Lind-Halldén, C (författare)
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- Säll, Torbjörn (författare)
- Lund University,Lunds universitet,MEMEG,Biologiska institutionen,Naturvetenskapliga fakulteten,Department of Biology,Faculty of Science
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(creator_code:org_t)
- John Wiley & Sons Inc. 2003
- 2003
- Engelska.
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Ingår i: Journal of Evolutionary Biology. - : John Wiley & Sons Inc.. - 1010-061X .- 1420-9101. ; 16:5, s. 1019-1029
- Relaterad länk:
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http://www.ncbi.nlm....
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http://dx.doi.org/10...
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https://doi.org/10.1...
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https://lup.lub.lu.s...
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Abstract
Ämnesord
Stäng
- DNA sequencing was performed on up to 12 chloroplast DNA regions [giving a total of 4288 base pairs (bp) in length] from the allopolyploid Arabidopsis suecica (48 accessions) and its two parental species, A. thaliana (25 accessions) and A. arenosa (seven accessions). Arabidopsis suecica was identical to A. thaliana at all 93 sites where A. thaliana and A. arenosa differed, thus showing that A. thaliana is the maternal parent of A. suecica. Under the assumption that A. thaliana and A. arenosa separated 5 million years ago, we estimated a substitution rate of 2.9 x 10(-9) per site per year in noncoding single copy sequence. Within A. thaliana we found 12 substitution (single bp) and eight insertion/deletion (indel) polymorphisms, separating the 25 accessions into 15 haplotypes. Eight of the A. thaliana accessions from central Sweden formed one cluster, which was separated from a cluster consisting of central European and extreme southern Swedish accessions. This latter cluster also included the A. suecica accessions, which were all identical except for one 5 bp indel. We interpret this low level of variation as a strong indication that A. suecica effectively has a single origin, which we dated at 20 000 years ago or more.
Ämnesord
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
- NATURVETENSKAP -- Biologiska vetenskaper (hsv//swe)
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Läkemedelskemi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Medicinal Chemistry (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine (hsv//eng)
Nyckelord
- Arabidopsis suecica
- Arabidopsis thaliana
- chloroplast
- DNA sequence polymorphism
- polyploid
- Biology
- Biologi
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)