Molecular Breeding

, Volume 6, Issue 5, pp 441-449

First online:

Mapping candidate genes in Eucalyptus with emphasis on lignification genes

  • Jean-Marc GionAffiliated withProgramme Arbres et Plantations, CIRAD-Forêt
  • , Philippe RechAffiliated withProgramme Arbres et Plantations, CIRAD-ForêtPôle de Biotechnologie Végétale, UMR CNRS/Université Paul Sabatier no. 5546
  • , Jacqueline Grima-PettenatiAffiliated withPôle de Biotechnologie Végétale, UMR CNRS/Université Paul Sabatier no. 5546
  • , Daniel VerhaegenAffiliated withProgramme Arbres et Plantations, CIRAD-Forêt
  • , Christophe PlomionAffiliated withLaboratoire de Génétique et Amélioration des Arbres Forestiers, INRA

Rent the article at a discount

Rent now

* Final gross prices may vary according to local VAT.

Get Access


We used the single-strand conformation polymorphism (SSCP) technique to map eight genes on Eucalyptus urophylla and Eucalyptus grandis linkage maps. These included four genes involved in the common phenylpropanoid pathway (caffeic acid 3-0-methyltransferase, caffeoyl CoA 3-O-methyltransferase, 4-coumarate CoA ligase and phenylalanine ammonia-lyase), two genes involved in the `lignin specific' pathway (cinnamoyl CoA reductase and cinnamyl alcohol dehydrogenase), and two symbiosis regulated genes (EgHypar and EgTubA1). A novel source of variation which affects the SSCP pattern, i.e. the presence or absence of electrophoresis buffer upon loading the samples into the polyacrylamide gel, was found. The placement of these genes on the Eucalyptus maps was carried out using an interspecific hybrid mapping population. This will further facilitate the identification or exclusion of `positional' candidate genes for characterizing quantitative trait loci (QTL) for wood quality and vegetative propagation related traits.

candidate gene Eucalyptus lignins mapping single-strand conformation polymorphism