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Master Thesis

Impact de l'approche moléculaire sur la classification systématique des Agaricomycetidae

Abstract : aAppeared in the 90s, the molecular methods, especially PCR and sequencing, have allowed for a major breakthrough in the area of mushroom phylogeny. This allowed for a deep reform of the systematic classification that was based only on morphological characteristics, opening the way for several new levels of classification. This highlighted several discrepancies between the molecular and systematic approaches. Thus, after a careful review of the principal systematic classification criteria and the various molecular markers, the sub-class of the Agaricomycetidae, which encompasses most of the edible and toxic mushrooms, will be compared to each type of approach. Although the molecular approach regroups several species with different morpho-anatomical features in a single phylogenetic group, it allows for easy distinction between species that are close morphologically, and for which confusing one for another could lead to food poisoning. Hence, shedding light on nucleotidic sequences mutations, molecular biology allowed us to distinguish species and genders Tricholoma, Lepista and Clitocybe for which systematic identification could be ambiguous. Nevertheless, the systematic approach remains inevitable in the field for identication (morpho-anatomical, environmental and key identification criteria).
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Master Thesis
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Contributor : Jean-Hugues Morneau <>
Submitted on : Friday, April 5, 2013 - 5:39:11 PM
Last modification on : Tuesday, May 11, 2021 - 11:36:16 AM
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  • HAL Id : dumas-00808615, version 1


Adrien Chaboud. Impact de l'approche moléculaire sur la classification systématique des Agaricomycetidae. Sciences pharmaceutiques. 2013. ⟨dumas-00808615⟩



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