ISSN:
1432-0983
Keywords:
Key words Cerato-ulmin
;
Gene structure
;
Ophiostoma ulmi
;
rDNA ITS
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Little genetic information exists comparing aggressive and non-aggressive isolates of the causal agent of Dutch elm disease, Ophiostoma ulmi. Two genetic elements were compared between the subgroups. The cerato-ulmin cu gene product has been associated with disease symptoms. Nucleotide-sequence analysis of cu and the internal transcribed spacer (ITS) region of the rDNA were made from three aggressive and three non-aggressive isolates of the pathogen. Our results suggested uniformity within, and unique differences between, subgroups. Differences were detected for cu in the promoter, coding, and transcription termination regions. Sequence data for the ITS clearly distinguish the subgroups.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s002940050032
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