Developmental quantitative genetics of growth in Populus

Rongling Wu, H. D. Bradshaw, R. F. Stettler

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Nursery growth and dry weight were analyzed for F2 genotypes derived from Populus trichocarpa x P. deltoides that have been field tested with clonal replicates in three different environments. The correlations between nursery and plantation performance differed among the environments, with higher values at Boardman and Clatskanie (both planted with rooted cuttings) than Puyallup (planted with unrooted cuttings). At Puyallup, nursery height was more strongly associated with plantation growth than were nursery diameter and dry weight. Yet, this finding was not supported by QTL mapping. A single overdominant QTL on linkage group G affected the stem height of both seedlings and resprouts in the nursery but showed nonsignificant LOD scores for plantation height from ages 1 to 5 at Puyallup. A total of four QTLs were identified for nursery diameter, one of which on linkage group O also controlled plantation basal area at all ages. Two important nursery QTLs on linkage groups B and G were used to estimate the relative efficiency of marker-assisted selection for plantation productivity. Despite the fact that they were not detected in the plantation stage, these two QTLs could significantly increase the proportion of the phenotypic variance explained by plantation QTLs.

Original languageEnglish (US)
Pages (from-to)1110-1119
Number of pages10
JournalTheoretical and Applied Genetics
Volume97
Issue number7
DOIs
StatePublished - Dec 1 1998

Fingerprint

Populus
Nurseries
quantitative genetics
plantations
quantitative trait loci
Growth
linkage groups
Populus interamericana
Weights and Measures
Seedlings
phenotypic variation
marker-assisted selection
basal area
Genotype
stems
seedlings
genotype

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Agronomy and Crop Science
  • Genetics

Cite this

Wu, Rongling ; Bradshaw, H. D. ; Stettler, R. F. / Developmental quantitative genetics of growth in Populus. In: Theoretical and Applied Genetics. 1998 ; Vol. 97, No. 7. pp. 1110-1119.
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Developmental quantitative genetics of growth in Populus. / Wu, Rongling; Bradshaw, H. D.; Stettler, R. F.

In: Theoretical and Applied Genetics, Vol. 97, No. 7, 01.12.1998, p. 1110-1119.

Research output: Contribution to journalArticle

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