rDNA Sequencing: An Essential Guide to the Taxonomy and Diagnosis of Colletotrichum

  • John A. Bailey
Part of the Developments in Plant Pathology book series (DIPP, volume 11)

Abstract

In the genus Colletotrichum, reliance on morphological criteria has led to much taxonomic confusion. In the last few years, analysis of rDNA sequences has resolved many questions and it is now possible to propose a new taxonomy for the genus. Examples of incorrect identification are discussed. Accurate and predictive taxonomy, coupled with a full understanding of the extent of phenotypic variability, is essential for meaningful diagnosis. If diagnosis and taxonomy are correct, then pathogen behaviour can be predicted and its control, avoidance, elimination, etc become much easier.

Keywords

rDNA Sequence Infection Vesicle Incorrect Identification Colletotrichum Species Taxonomic Confusion 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Bailey, J. A. and Jeger, M. J. 1992. “Colletotrichum: Biology, Pathology and Control”, CAB International, Wallingford, 388 pp.Google Scholar
  2. Bailey, J. A., Nash, C., Morgan, L.M. and O’Connell R.J. 1996. Molecular taxonomy of Colletotrichum species causing anthracnose on the Malvaceae. Phytopathology: in press.Google Scholar
  3. Latunde Dada, A. O., O’Connell, R. J., Nash, C., Pring, R. J., Mendgen, K., Lucas, J. A. and Bailey, J. A. 1996a. The infection process and identity of the hemibiotrophic anthracnose fungus (Colletotrichum destructivum O’Gara) from cowpea (Vigna inguiculata (L.) Walp. Mycol. Res. 100: 1133–1141.CrossRefGoogle Scholar
  4. Latunde Dada, A. O., Lucas, J. A. and Bailey, J.A. 1996b. Infection process of C. destructivum (O’Gara) from lucerne (Medicago sativa L.). Eur. J. Plant Pathol, in press.Google Scholar
  5. O’Connell, R. J., Uronu, A. B., Waksman, G., Nash, C., Keon, J. P. R. and Bailey, J. A. 1993. Hemibiotrophic infection of Pisum sativum by Colletotrichum truncatum. Plant Pathol. 42: 774–783.CrossRefGoogle Scholar
  6. Pain, N. A., O’Connell, R. J., Bailey J. A. and Green, J. R. (1992). Monoclonal antibodies which show restricted binding to four Colletotrichum species: C. lindemuthianum, C. malvarum, C. orbiculare and C. trifolii. Physiol. Mol. Plant Pathol., 41, 111–126.CrossRefGoogle Scholar
  7. Sherriff, C., Whelan, M. J., Arnold, G. M., Lafay, J-F., Brygoo, I. and Bailey, J. A. 1994. Ribosomal DNA sequence analysis reveals new species groupings in the genus Colletotrichum. Exper. Mycol. 18: 121–138.CrossRefGoogle Scholar
  8. Sherriff, C., Whelan, M. J., Arnold G. M., and Bailey, J. A. 1995. rDNA sequence analysis confirms the distinction between Colletotrichum graminicola and C. sublineolum. Mycol. Res. 99: 475–478.CrossRefGoogle Scholar
  9. Sreenivasaprasad, S., Mills, P.R. and Brown, A.E. 1994. Nucleotide sequence of the rDNA spacer 1 enables identification of isolates of Colletotrichum as C. acutatum. Mycol. Res. 186–188.Google Scholar
  10. Sreenivasaprasad, S., Mills, P.R., Meehan, B.M. and Brown, A.E. 1996. Phylogeny and systematics of Colletotrichum species based on ribosomal DNA spacer analysis. Genome 39: 499–512.PubMedCrossRefGoogle Scholar

Copyright information

© Kluwer Academic Publishers 1997

Authors and Affiliations

  • John A. Bailey
    • 1
  1. 1.IACR-Long Ashton Research StationBristolUK

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