Year-end Sale % OFF 
Abstract
Restriction fragment length polymorphisms (RFLPs) in the ribosomal RNA gene (rDNA) region were used to assess relationships between the Dutch elm disease fungi Ophiostoma novo‐ulmi and Ophiostoma ulmi, the recently described Himalayan Dutch elm disease pathogen, Ophiostoma himal‐ulmi, the morphologically similar sapstain fungi, Ophiostoma piceae and Ophiostoma quercus, and several Ophiostoma species from hardwood trees, including Ophiostoma stenoceras and Ophiostoma proliferum. A distance matrix and cluster analysis indicated that the rDNA region of O. himal‐ulmi is more closely related to those of O. novo‐ulmi and O. ulmi than to those of O. piceae and O. quercus and is more distantly related to O. stenoceras and the other Ophiostoma species, which formed a separate clade. The rDNA region of O. quercus was found to be at least as closely related to that of O. novo‐ulmi and O. ulmi as it is to that of O. piceae. The implications of these results for the evolution of the Dutch elm disease fungi are discussed.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
