KUBICEK, Christian, P.,LINKE, Rita,SEIBOTH, Bernhard,HAARMANN, Thomas,LORENZ, Patrick
申请号:
EP20130814970
公开号:
EP2938727(B1)
申请日:
2013.12.23
申请国别(地区):
欧洲专利局
年份:
2018
代理人:
摘要:
The invention relates to a process for identifying gene(s)/genetic element(s) associated with mating impairment in strains of Trichoderma reesei QM6a or strains derived thereof comprising the steps of a) providing a first strain being a Trichoderma reesei QM6a strain having a MAT1-2 locus or a strain derived thereof, b) sexually crossing said strain with a second strain being a mating competent strain of a Trichoderma reesei (Hypocrea jecorina) strain having a complementary locus, i.e. the MAT1-1 locus, c) repeatedly back-crossing the MAT1-1 progenies from the crossing of b) or the back-crossing thereof with the first strain of a), until a strain is obtained that is substantially identical to the first Trichoderma reesei QM6a strain or a strain derived thereof, but carries the MAT1-1 locus and is mating competent for crossing with Trichoderma reesei QM6a or any of its MAT1-2 progeny, d) selecting the progeny from step c) that is mating competent for crossing with a Trichoderma reesei (Hypocrea jecorina) havin