Detection of quantitative trait loci in Pinus sylvestris L. across years

Estelle Lerceteau, Alfred E. Szmidt, Bengt Andersson

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

In an earlier study, we reported the characterisation of quantitative trait loci (QTLs) for economically important traits related to wood production for a specific year of measurement. However, validating the detected QTLs across years is important for any strategy for marker-assisted selection (MAS). Therefore, we evaluated the consistency of the QTLs across four years in 9 to 12 year-old trees. Data related to tree height were analysed in two ways. The total height was used to characterise QTLs likely to be useful in MAS, and the increment values to evaluate growth regulation. Among the 11 QTLs detected, 4 were found in both the 1996 and 1997 evaluations. QTL numbers and locations related to total height were found to be highly stable. However, the QTL effects progressively changed in successive years, following either an increasing, decreasing or curvilinear trend. Depending on their specific trends, some QTLs may not be expressed at all later in maturity, or they may be expressed at a higher level. This will have direct consequences on the applicability of molecular markers in early screening programs, since a study at the mature stage may also be required. More variation in QTL number and effect was observed relating to height increment than to total height, indicating significant differences in gene expression during the growth periods involved.

Original languageEnglish
Pages (from-to)117-122
Number of pages6
JournalEuphytica
Volume121
Issue number2
DOIs
Publication statusPublished - Nov 13 2001

Fingerprint

Pinus sylvestris
Quantitative Trait Loci
quantitative trait loci
marker-assisted selection
Growth
screening

All Science Journal Classification (ASJC) codes

  • Agronomy and Crop Science
  • Genetics
  • Plant Science
  • Horticulture

Cite this

Detection of quantitative trait loci in Pinus sylvestris L. across years. / Lerceteau, Estelle; Szmidt, Alfred E.; Andersson, Bengt.

In: Euphytica, Vol. 121, No. 2, 13.11.2001, p. 117-122.

Research output: Contribution to journalArticle

Lerceteau, E, Szmidt, AE & Andersson, B 2001, 'Detection of quantitative trait loci in Pinus sylvestris L. across years', Euphytica, vol. 121, no. 2, pp. 117-122. https://doi.org/10.1023/A:1012076825293
Lerceteau, Estelle ; Szmidt, Alfred E. ; Andersson, Bengt. / Detection of quantitative trait loci in Pinus sylvestris L. across years. In: Euphytica. 2001 ; Vol. 121, No. 2. pp. 117-122.
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