Previous Article | Next Article ![]()
Appl. Environ. Microbiol., May 1997, 1756-1761, Vol 63, No. 5
D Redecker, H Thierfelder, C Walker and D Werner
A technique combining PCR and restriction fragment length polymorphism
analysis was used to generate specific DNA fragment patterns from spore
extracts of arbuscular mycorrhizal fungi. With the universal primers ITS1
and ITS4, DNA fragments were amplified from species of Scutellospora and
Gigaspora that were approximately 500 bp long. The apparent lengths of the
corresponding fragments from Glomus spp. varied between 580 and 600 bp.
Within the genus Glomus, the restriction enzymes MboI, HinfI, and TaqI were
useful for distinguishing species. Depending on the restriction enzyme
used, groups of species with common fragment patterns could be found. Five
tropical and subtropical isolates identified as Glomus manihotis and G.
clarum could not be distinguished by their restriction patterns,
corresponding to the morphological similarity of the spores. The variation
of internal transcribed spacer sequences among the Gigaspora species under
study was low. Fragment patterns of Scutellospora spp. showed their
phylogenetic relationship with Gigaspora and revealed only a slightly
higher degree of variation.
Copyright © 1997, American Society for Microbiology
Restriction Analysis of PCR-Amplified Internal Transcribed Spacers of Ribosomal DNA as a Tool for Species Identification in Different Genera of the Order Glomales
Fachbereich Biologie der Universitat Marburg, D-35032 Marburg, Germany, and Forestry Commission, Northern Research Station, Roslin, Midlothian, United Kingdom
This article has been cited by other articles:
| J. Bacteriol. | Microbiol. Mol. Biol. Rev. | Eukaryot. Cell | All ASM Journals |
|---|