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.
journal_name
Genome Bioljournal_title
Genome biologyauthors
Kubicek CP,Herrera-Estrella A,Seidl-Seiboth V,Martinez DA,Druzhinina IS,Thon M,Zeilinger S,Casas-Flores S,Horwitz BA,Mukherjee PK,Mukherjee M,Kredics L,Alcaraz LD,Aerts A,Antal Z,Atanasova L,Cervantes-Badillo MG,Challacdoi
10.1186/gb-2011-12-4-r40subject
Has Abstractpub_date
2011-01-01 00:00:00pages
R40issue
4eissn
1474-7596issn
1474-760Xpii
gb-2011-12-4-r40journal_volume
12pub_type
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