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The Evolution and Diversification of S-locus Haplotypes in the Brassicaceae Family.

Aaltonen, Kristina LU ; Widén, Björn LU and Ceplitis, Alf LU (2009) In Genetics 181(3). p.977-984
Abstract
Self-incompatibility (SI) in the Brassicaceae plant family is controlled by the SRK and SCR genes situated at the S locus. A large number of S haplotypes have been identified, mainly in cultivated species of the Brassica and Raphanus genera, but recently also in wild Arabidopsis species. Here, we used DNA sequences from the SRK and SCR genes of the wild Brassica species B. cretica, together with publicly available sequence data from other Brassicaceae species, to investigate the evolutionary relationships between S haplotypes in the Brassicaceae family. The results reveal that wild and cultivated Brassica species have similar levels of SRK diversity indicating that domestication has had but a minor effect on S-locus diversity in Brassica.... (More)
Self-incompatibility (SI) in the Brassicaceae plant family is controlled by the SRK and SCR genes situated at the S locus. A large number of S haplotypes have been identified, mainly in cultivated species of the Brassica and Raphanus genera, but recently also in wild Arabidopsis species. Here, we used DNA sequences from the SRK and SCR genes of the wild Brassica species B. cretica, together with publicly available sequence data from other Brassicaceae species, to investigate the evolutionary relationships between S haplotypes in the Brassicaceae family. The results reveal that wild and cultivated Brassica species have similar levels of SRK diversity indicating that domestication has had but a minor effect on S-locus diversity in Brassica. Our results also show that a common set of S haplotypes were present in the ancestor of the Brassica and Arabidopsis genera, that only a small number of haplotypes survived in the Brassica lineage after its separation from Arabidopsis, and that diversification within the two Brassica dominance classes occurred after the split between the two lineages. We also find indications that recombination may have occurred between the kinase domain of SRK and the SCR gene in Brassica. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Brassica cretica, Arabidopsis, SRK, SCR, Brassica
in
Genetics
volume
181
issue
3
pages
977 - 984
publisher
Genetics Society of America
external identifiers
  • wos:000270213500016
  • pmid:19087966
  • scopus:62549094935
ISSN
0016-6731
DOI
10.1534/genetics.108.090837
language
English
LU publication?
yes
id
39843e43-27dd-462d-b204-f326c1bf9a67 (old id 1276128)
date added to LUP
2009-01-21 12:41:51
date last changed
2017-01-01 04:29:16
@article{39843e43-27dd-462d-b204-f326c1bf9a67,
  abstract     = {Self-incompatibility (SI) in the Brassicaceae plant family is controlled by the SRK and SCR genes situated at the S locus. A large number of S haplotypes have been identified, mainly in cultivated species of the Brassica and Raphanus genera, but recently also in wild Arabidopsis species. Here, we used DNA sequences from the SRK and SCR genes of the wild Brassica species B. cretica, together with publicly available sequence data from other Brassicaceae species, to investigate the evolutionary relationships between S haplotypes in the Brassicaceae family. The results reveal that wild and cultivated Brassica species have similar levels of SRK diversity indicating that domestication has had but a minor effect on S-locus diversity in Brassica. Our results also show that a common set of S haplotypes were present in the ancestor of the Brassica and Arabidopsis genera, that only a small number of haplotypes survived in the Brassica lineage after its separation from Arabidopsis, and that diversification within the two Brassica dominance classes occurred after the split between the two lineages. We also find indications that recombination may have occurred between the kinase domain of SRK and the SCR gene in Brassica.},
  author       = {Aaltonen, Kristina and Widén, Björn and Ceplitis, Alf},
  issn         = {0016-6731},
  keyword      = {Brassica cretica,Arabidopsis,SRK,SCR,Brassica},
  language     = {eng},
  number       = {3},
  pages        = {977--984},
  publisher    = {Genetics Society of America},
  series       = {Genetics},
  title        = {The Evolution and Diversification of S-locus Haplotypes in the Brassicaceae Family.},
  url          = {http://dx.doi.org/10.1534/genetics.108.090837},
  volume       = {181},
  year         = {2009},
}