Variation in the ability to form ectomycorrhizas in the F1 progeny of an interspecific poplar (Populus spp.) cross |
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| Authors: | D Tagu Patricia Faivre Rampant Frédéric Lapeyrie Pascale Frey-Klett Patrice Vion Marc Villar |
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| Institution: | (1) INRA–Nancy, Microbiologie Forestière, 54280 Champenoux, France e-mail: tagu@nancy.inra.fr Tel.: +33-383-394013, Fax: +33-383-394069, FR;(2) Université Henri Poincaré, Nancy I, Faculté des Sciences, Laboratoire de Biologie Forestière, BP 239, 54506 Vandoeuvre cedex, France, FR;(3) INRA, Unité Amélioration, Génétique et Physiologie des Arbres Forestiers, BP 20619, 45160 Ardon, France, FR |
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| Abstract: | The aim of this study was to determine the existence of a genetic basis for the ability to form ectomycorrhiza on a model
angiosperm tree (Populus, poplar). Parental clones and 18 progeny from a controlled interspecific cross between Populus deltoides and Po- pulus trichocarpa were grown in a glasshouse and inoculated with mycelium of the ectomycorrhizal fungus Laccaria bicolor. Three months after inoculation, the percentage of mycorrhizal root tips was determined for each inoculated plant. The data
indicate variability in the ability to form ectomycorrhizas among the F1 progeny, including individual progeny which are different
to either parent. This suggests a genetic basis for mycorrhiza formation.
Accepted: 6 November 2000 |
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| Keywords: | Ectomycorrhiza Fungus Genetics Heritability Poplar |
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