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The European Arabidopsis Stock Centre

STAIRS (STepped Aligned Inbred Recombinant Strains)

Donated by

  • M.J. Kearsey School of Biosciences, University of Birmingham
  • TimothyMark Wilkes School of Biosciences, University of Birmingham

Click here to view all 74 of these lines.


Sets in this collection

Nasc code Description Stock contents
N721831 Complete set of STAIRS lines View set contents


You can order the complete set of STAIRS lines by clicking on the NASC code link N721831.

The STAIRS lines were derived from the Chromosome Substitution Strains. The CSS collection comprises of 4 individual homozygous chromosome substitution strains (CSS) for chromosomes 2,3,4 and 5, where a single Col-0 chromosome has been substituted for by the corresponding ler-0 chromosome. These have the names CSS2, CSS3, CSS4, and CSS5.

STepped Aligned Inbred Recombinant Strains (STAIRS)

Derived from the Chromosome Substitution Strains, the second resource is comprised of sets of single recombinant lines (SRLs) for each of the CSS lines. These have been selected to be Col-0 at one end of the substituted chromosome and Ler-0 at the other. When aligned these lines display a step wise progression on Ler introgression along the length of the chromosome.

STAIRS SRLS Chromosome 1 markers

STAIRS SRLS Chromosome 3 markers

STAIRS SRLS Chromosome 5 markers


  • Koumproglou, R. et al. 2002. STAIRS: a new genetic resource for functional genomic studies of Arabidopsis. The Plant Journal 31(3):355-364.PubMed ID: 12164814.