In:
Genome Biology, Springer Science and Business Media LLC, Vol. 12, No. 4 ( 2011-04)
Kurzfassung:
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.
Materialart:
Online-Ressource
ISSN:
1474-760X
DOI:
10.1186/gb-2011-12-4-r40
Sprache:
Englisch
Verlag:
Springer Science and Business Media LLC
Publikationsdatum:
2011
ZDB Id:
2040529-7