Mapping QTLs for developmental traits in raspberry from bud break to ripe fruit

Julie Graham, Christine A. Hackett, Kay Smith, Mary Woodhead, Ingo Hein, Susan McCallum

Research output: Contribution to journalArticlepeer-review

33 Citations (Scopus)

Abstract

Protected cropping systems have been adopted by the UK industry to improve fruit quality and extend the current season. Further manipulation of season, alongside consideration of climate change scenarios, requires an understanding of the processes controlling fruit ripening. Ripening stages were scored from May to July across different years and environments from a raspberry mapping population. Here the interest was in identifying QTLs for the overall ripening process as well as for the time to reach each stage, and principal coordinate analysis was used to summarise the ripening process. Linear interpolation was also used to estimate the time (in days) taken for each plot to reach each of the stages assessed. QTLs were identified across four chromosomes for ripening and the time to reach each stage. A MADS-box gene, Gene H and several raspberry ESTs were associated with the QTLs and markers associated with plant height have also been identified, paving the way for marker assisted selection in Rubus idaeus.

Original languageEnglish
Pages (from-to)1143-1155
Number of pages13
JournalTheoretical and Applied Genetics
Volume118
Issue number6
DOIs
Publication statusPublished - Apr 2009

Keywords

  • Chromosome Mapping
  • Chromosomes, Plant
  • Crops, Agricultural/anatomy & histology
  • Fruit/genetics
  • Genes, Plant
  • Genetic Linkage
  • Humans
  • MADS Domain Proteins/genetics
  • Molecular Sequence Data
  • Phenotype
  • Quantitative Trait Loci
  • Rosaceae/anatomy & histology

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