Seedling salt tolerance in tomato

J. Junming Li, L. Liu, Y. Bai, Pujuan Zhang, H.J. Finkers, Y. Du, R.G.F. Visser, A.W. van Heusden

Research output: Contribution to journalArticleAcademicpeer-review

16 Citations (Scopus)

Abstract

Soils with higher concentrations of salt are becoming more and more a constraint for many crops to obtain high yields. Wild tomato species, adapted to adverse environments, are a potential reservoir for genes underlying quantitative trait loci (QTL) related to salt tolerance in tomato. In this study two introgression line (IL) libraries derived from two different wild species, Solanum pennellii LA716 and Solanum lycopersicoides LA2951, were used to identify QTLs for salt tolerance in the seedling stage. In the S. pennellii IL library, four major QTLs were identified on chromosomes 6, 7 and 11. In the S. lycopersicoides IL library, six major QTLs were discovered which are located on chromosomes 4, 6, 9 and 12. Co-localization of QTLs on chromosome 6 in the two IL libraries and previously reports hinted that this locus might be conserved in the tomato crop. Three S. pennellii ILs (IL6-2, IL7-1 and IL7-5) harboring QTLs on chromosome 6 and 7 were crossed. Semi-dominance and dominance were shown for these three QTLs, and non-additive and epistatic interactions between them were observed
Original languageEnglish
Pages (from-to)403-414
JournalEuphytica
Volume178
Issue number3
DOIs
Publication statusPublished - 2011

Keywords

  • quantitative trait loci
  • introgression line population
  • lycopersicon-esculentum
  • vegetative growth
  • cultivated tomato
  • bacterial canker
  • qtl analysis
  • fruit yield
  • germination
  • salinity

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