Actinomyces 1992 Vol.3 Part 3 51-54
ANALYSES OF DNA HOMOLOGY AND rDNA RESTRICTION PATTERNS
OF SOME SPECIES IN THE GENUS NOCARDIOPSIS
Z.LIU, J.RUAN, J.ZAKRZEWSKA-CZERWINWKA* and
M.MORDARSKI*
Code Number: AC92011
Sizes of Files:
Text: 14k
Graphics: Photos (jpg) 29K / Halftones (gif) 38K
ABSTRACT. Eleven species of the Nocardiopsis genus were
investigated by DNA:DNA homology and RFLP analysis. The
results of DNA:DNA pairing show that the type species
Nocardiopsis dassonvillei shares 18-25% homology with
N.dassonvillei subsp. prasina and that RFLP
patterns (BamHl, KpnI and SalT) are markedly different. The
subspecies is therefore considered to represent a different
species of the genus Nocardiopsis. Similarly other
species attributed to the taxon have no relationship with the
type species, either in terms of DNA homology or with
reference to RFLP patterns. Results obtained point out the
relevance of molecular techniques in the determination of
taxonomic validity of the generic taxon.
Copyright 1992 CETA
