Two related genotypes of Solanum microdontum carry different segregating alleles for field resistance to Phytophthora infestans

被引：0
作者：
Johannes M. Sandbrink
Leontine T. Colon
Petra J.C.C. Wolters
Willem J. Stiekema
机构：
[1] Centre for Plant Breeding and Reproduction Research (CPRO-DLO),
来源：
Molecular Breeding | 2000年 / 6卷
关键词：
late blight; durable resistance; RFLP; AFLP; SSR; CAPS; QTL mapping;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Six F1 populations produced from crosses between two Solanum microdontum genotypes and three S. tuberosum genotypes have been assessed for resistance to Phytophthora infestans (late blight; LB) in the field and proved to segregate for P. infestans resistance. The six populations were subjected to genetic mapping using AFLP markers in combination with a core map consisting of RFLPs and a few PCR-based markers. The two S. microdontum parents MCD167 and MCD178 harbour different alleles contributing to resistance. In the MCD167 set of populations a major QTL contributing to resistance was located on chromosome 4. This locus was not detected in the MCD178 set of populations. In the latter set of populations, a major QTL for resistance was detected on chromosome 10. This locus for resistance was not detected in the MCD167 set of populations. A third QTL contributing strongly to resistance was detected on chromosome 5. However, this locus was not consistently detected in all populations. For the loci on chromosome 5 and 10, segregation for resistance alleles from the susceptible parents was also observed. The results provide a starting point for future combinations of genes, to predict the value of each combination and finally to obtain potato germplasm carrying high levels of durable resistance to LB.
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页码：215 / 225
页数：10
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共 174 条
  • [1] Bendahmane A(1997)High resolution genetical and physical mapping of the Theor Appl Genet 95 153-162
  • [2] Kanyuka K(1988) gene for extreme resistance to potato virus X in tetraploid potato Euphytica volume suppl 77-86
  • [3] Baulcombe DC(1995)Resistance to late blight ( Theor Appl Genet 90 691-698
  • [4] Colon LT(1993) in ten wild Neth J Plant Path 99 57-67
  • [5] Budding DJ(1990) species J Mol Evol 31 132-150
  • [6] Colon LT(1993)Partial resistance to late blight ( Plant Dis 77 653-661
  • [7] Jansen RC(1995)) in hybrid progenies of four South American Mol Plant-Microbe Interact 8 886-891
  • [8] Budding DJ(1989) species crossed with diploid Theor Appl Genet 78 65-75
  • [9] Drenth A(1991)The occurrence of the A2 mating type of Theor Appl Genet 83 49-57
  • [10] Turkensteen LJ(1993) in the Netherlands: significance and consequences Theor Appl Genet 85 541-544
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