Comparative genome sequence analysis underscores mycoparasitism as the ancestral life style of Trichoderma. - Archive ouverte HAL Access content directly
Journal Articles Genome Biology Year : 2011

Comparative genome sequence analysis underscores mycoparasitism as the ancestral life style of Trichoderma.

Christian Kubicek
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Alfredo Herrera-Estrella
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Verena Seidl-Seiboth
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  • PersonId : 937936
Irina Druzhinina
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  • PersonId : 937937
Susanne Zeilinger
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Prasun Mukherjee
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Mala Mukherjee
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Luis Alcaraz
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Zsuzsanna Antal
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Lea Atanasova
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Fanny Coulpier
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Hans von Döhren
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Edgardo Esquivel-Naranjo
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Erzsébet Fekete
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Michel Flipphi
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Sabine Gruber
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Rosa Hermosa
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Miguel Hernández-Oñate
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Levente Karaffa
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Stéphane Le Crom
Antoine Margeot
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  • PersonId : 919327
Benjamin Metz
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Markus Omann
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Bernhard Seiboth
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Doris Tisch
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Abstract

Background: Mycoparasitism, a lifestyle where one fungus is parasitic on another fungus, has special relevance when the prey is a plant pathogen, providing a strategy for biological control of pests for plant protection. Probably, the most studied biocontrol agents are species of the genus Hypocrea/Trichoderma. Results: Here we report an analysis of the genome sequences of the two biocontrol species Trichoderma atroviride (teleomorph Hypocrea atroviridis) and Trichoderma virens (formerly Gliocladium virens, teleomorph Hypocrea virens), and a comparison with Trichoderma reesei (teleomorph Hypocrea jecorina). These three Trichoderma species display a remarkable conservation of gene order (78 to 96%), and a lack of active mobile elements probably due to repeat-induced point mutation. Several gene families are expanded in the two mycoparasitic species relative to T. reesei or other ascomycetes, and are overrepresented in non-syntenic genome regions. A phylogenetic analysis shows that T. reesei and T. virens are derived relative to T. atroviride. The mycoparasitism-specific genes thus arose in a common Trichoderma ancestor but were subsequently lost in T. reesei. Conclusions: The data offer a better understanding of mycoparasitism, and thus enforce the development of improved biocontrol strains for efficient and environmentally friendly protection of plants.
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hal-02879334 , version 1 (24-06-2020)

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Christian Kubicek, Alfredo Herrera-Estrella, Verena Seidl-Seiboth, Diego Martinez, Irina Druzhinina, et al.. Comparative genome sequence analysis underscores mycoparasitism as the ancestral life style of Trichoderma.. Genome Biology, 2011, 12 (4), pp.R40. ⟨10.1186/gb-2011-12-4-r40⟩. ⟨hal-02879334⟩
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