Quantitative resistance to Botrytis cinerea from Solanum neorickii

H.J. Finkers, Y. Bai, P.M.M.M. van den Berg, R. van Berloo, R.G. Meijer-Dekens, A. ten Have, J.A.L. van Kan, P. Lindhout, A.W. van Heusden

Research output: Contribution to journalArticleAcademicpeer-review

22 Citations (Scopus)

Abstract

Tomato (Solanum lycopersicum) is susceptible to gray mold (Botrytis cinerea). Quantitative resistance to B. cinerea was previously identified in a wild relative, S. neorickii G1.1601. The 122 F3 families derived from a cross between the susceptible S. lycopersicum cv. Moneymaker and the partially resistant S. neorickii G1.1601 were tested for susceptibility to B. cinerea using a stem bioassay. Three putative quantitative trait loci (pQTL) were detected: pQTL3 and pQTL9 reducing lesion growth (LG) and pQTL4 reducing disease incidence (DI). For each pQTL, a putative homologous locus was identified recently in another wild tomato relative, S. habrochaites LYC4. pQTL3 was confirmed by assessing disease resistance in BC3S1 and BC3S2 progenies of S. neorickii G1.1601. pQTL4 was not statistically confirmed but the presence of the S. neorickii resistance allele reduced DI in all three tested populations. The reduction in LG of pQTL9 was not confirmed but rather, this locus conferred a reduced DI, similar to observations in the QTL study using S. habrochaites. The results are discussed in relation to other disease resistance loci identified in studies with other wild tomato relatives.
Original languageEnglish
Pages (from-to)83-92
JournalEuphytica
Volume159
Issue number1-2
DOIs
Publication statusPublished - 2008

Keywords

  • lycopersicon-hirsutum cross
  • late blight resistance
  • oidium-lycopersici
  • bacterial wilt
  • isogenic lines
  • tomato plants
  • linkage maps
  • trait loci
  • 3 qtls
  • gene

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