Genomic and Transgenic Approaches to Modified Plants: Disease Resistance in the Brassica as a Model System.

  • Ekuere, Usukuma (Department of Biological Sciences, University of Alberta, Edmonton Alberta) ;
  • Good, Allen G. (Department of Biological Sciences, University of Alberta, Edmonton Alberta) ;
  • Mayerhofer, Reinhold (Department of Biological Sciences, University of Alberta, Edmonton Alberta)
  • Published : 2000.07.01

Abstract

Molecular genetic techniques can now be applied to the development of advanced plant genotypes, either through genetic transformation or genomic approaches which allow researchers to transfer specific traits using molecular markers. In this paper, we discuss the use of these techniques towards understanding the genetics of blackleg resistance in Brassica. In a comparative mapping study between Arabidopsis thaliana and Brassica napus, 6 R-ESTs, 7 B. napus RFLP markers and a B. napus EST were located in a collinear region of N7 (B. napus) and chromosome 1 (A. thaliana). One of the A. thaliana R-ESTs and 4 of the B. napus RFLPs co-segregated and mapped to the LmRl locus for blackleg resistance. Introgression of blackleg resistance from wild relatives is also investigated with the possibility of accelerating the introgression process via marker assisted selection.

Keywords

References

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