| deletion of the mat-2 mating-type gene during uni-directional mating-type switching in ceratocystis. | ceratocystis eucalypti is strictly heterothallic, with single ascospore strains representing one of two opposite mating types. most other ceratocystis species, including c. virescens, c. pinicola, and c. fimbriata, are homothallic. in the homothallic species, the mat-2 strains are self-fertile, while mat-1 strains are self-sterile and grow more slowly than mat-2 strains. the current hypothesis is that self-fertility of mat-2 strains is due to the deletion of the mat-2 mating-type gene, resulting ... | 2000 | 10953881 |
| phylogenetic and taxonomic evaluation of chalara, chalaropsis, and thielaviopsis anamorphs associated with ceratocystis. | parsimony analysis of sequences of the internal transcribed spacer region of the nuclear rdna and partial sequences of the large subunit (lsu) place four anamorphic chalara species as a monophyletic grouping within the teleomorph genus ceratocystis. chalara ovoidea, ch. thielavioides, ch. populi, and ch. elegans (synanamorph: thielaviopsis basicola) form aleurioconidia typical of the anamorph genus thielaviopsis, to which the species are transferred. three of these species (t. ovoidea, t. thiela ... | 2002 | 21156478 |