| taxonomic re-evaluation of three related species of graphium, based on morphology, ecology and phylogeny. | two fungi associated with bark beetles, graphium pseudormiticum (described in 1994) and rhexographium fimbriisporum (described in 1995), have two micromorphological characters in common. both species produce conidia with conspicuous basal frills, and the conidia align in chains, despite being produced in slime. the association of g. pseudormiticum with the pine bark beetle, orthotomicus erosus, and the association of r. fimbriisporum with the spruce bark beetle, ips typographus, suggest ecologic ... | 2003 | 21148980 |
| the phylogenetic relationships of seven european ips (scolytidae, ipinae) species. | in central europe seven lps species are characterized by differences in morphology, structure of galleries, host specificity and aggressiveness. these species were analysed by allozyme markers and by sequencing 567 bp of the mitochondrial cytochrome oxidase i gene, in order to define their phylogenetic relationships. orthotomicus erosus and tomicus minor were taken as outgroup species. the data revealed high inter-specific and low intra-specific sequence divergence. plotting the observed sequenc ... | 1997 | 9272441 |