Article (Scientific journals)
Genetical metabolomics of flavonoid biosynthesis in Populus: a case study.
Morreel, Kris; Goeminne, Geert; Storme, Veronique et al.
2006In Plant Journal, 47 (2), p. 224-37
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Keywords :
Chromatography, High Pressure Liquid/methods; Chromosome Mapping/methods; Computational Biology/methods; Flavonoids/biosynthesis/chemistry/genetics; Genes, Plant; Lod Score; Populus/chemistry/genetics/metabolism; Quantitative Trait Loci
Abstract :
[en] Genetical metabolomics [metabolite profiling combined with quantitative trait locus (QTL) analysis] has been proposed as a new tool to identify loci that control metabolite abundances. This concept was evaluated in a case study with the model tree Populus. Using HPLC, the peak abundances were analyzed of 15 closely related flavonoids present in apical tissues of two full-sib poplar families, Populus deltoides cv. S9-2 x P. nigra cv. Ghoy and P. deltoides cv. S9-2 x P. trichocarpa cv. V24, and correlation and QTL analysis were used to detect flux control points in flavonoid biosynthesis. Four robust metabolite quantitative trait loci (mQTL), associated with rate-limiting steps in flavonoid biosynthesis, were mapped. Each mQTL was involved in the flux control to one or two flavonoids. Based on the identities of the affected metabolites and the flavonoid pathway structure, a tentative function was assigned to three of these mQTL, and the corresponding candidate genes were mapped. The data indicate that the combination of metabolite profiling with QTL analysis is a valuable tool to identify control points in a complex metabolic pathway of closely related compounds.
Disciplines :
Phytobiology (plant sciences, forestry, mycology...)
Genetics & genetic processes
Author, co-author :
Morreel, Kris
Goeminne, Geert
Storme, Veronique
Sterck, Lieven
Ralph, John
Coppieters, Wouter ;  Université de Liège - ULiège > Département de productions animales > Département de productions animales
Breyne, Peter
Steenackers, Marijke
Georges, Michel  ;  Université de Liège - ULiège > Département de productions animales > GIGA-R : Génomique animale
Messens, Eric
Boerjan, Wout
Language :
English
Title :
Genetical metabolomics of flavonoid biosynthesis in Populus: a case study.
Publication date :
2006
Journal title :
Plant Journal
ISSN :
0960-7412
eISSN :
1365-313X
Publisher :
Blackwell Publishing, Oxford, United Kingdom
Volume :
47
Issue :
2
Pages :
224-37
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 08 November 2011

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