Plant Systematics and Evolution

, Volume 213, Issue 3–4, pp 251–257 | Cite as

Molecular evidence that fireweed (Senecio madagascariensis, Asteraceae) is of South African origin

  • L. J. Scott
  • B. C. Congdon
  • J. Playford
Article

Abstract

ITS1 sequence data was obtained for fireweed (Senecio madagascariensis) andS. lautus from Australia,S. madagascariensis andS. inaequidens from South Africa andS. madagascariensis from Madagascar. Despite the low level of variation (0.0–3.4%), these data further resolve the controversy concerning the identity and origin of fireweed. They confirm that fireweed is part of the South AfricanS. madagascariensis/S. inaequidens complex, and indicate that the infestation in Australia originated from South Africa as opposed to Madagascar. This will facilitate a resumption of biological control efforts in Australia and will direct surveys for control agents to South Africa.

Key words

Asteraceae Senecioneae Senecio S. madagascariensis S. inaequidens S. lautus Weed genetics internal transcribed spacer ITS biological control 

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References

  1. Ali, S. I., 1969:Senecio lautus complex in Australia V: taxonomic interpretations. — Austral. J. Bot.17: 161–176.Google Scholar
  2. Bain, J. F., Jansen, R. K., 1995: A phylogenetic analysis of the aureoidSenecio (Asteraceae) complex based on ITS sequence data. — Pl. Syst. Evol.195: 209–219.Google Scholar
  3. Chichiricco, G., Frizzi, G., Tammaro, R., 1979: Numeri cromosomici per la Flore Italiana. — Inform. Bot. Ital.11: 3–35.Google Scholar
  4. Harland, S. C., 1955: The experimental approach to the species problem. — InLousley, J. E., (Ed.): Species studies in the British Flora, pp. 16–20. — London: Botanical Society of the British Isles.Google Scholar
  5. Hillis, D. M., Davis, S. K., 1988: Ribosomal DNA: intraspecific polymorphism, concerted evolution and phylogeny reconstruction. — Syst. Zool.37: 63–66.Google Scholar
  6. —, 1991: Ribosomal DNA: molecular evolution and phylogenetic inference. — Quart. Rev. Biol.66: 411–453.PubMedGoogle Scholar
  7. Lawrence, M. E., 1980:Senecio L. (Asteraceae) in Australia: chromosome numbers and the occurrence of polyploidy. — Austral. J. Bot.17: 161–176.Google Scholar
  8. Marohasy, J. J., 1989: A survey of fireweed (Senecio madagascariensis Poir.) and its natural enemies in Madagascar with a view to biological control in Australia. — Pl. Protect. Quart.4: 139–140.Google Scholar
  9. —, 1993: Are we justified in considering fireweed (Senecio madagascariensis) an exotic? — InSwarbrick, C. W. L., Jettner, R. J., Streit, L., Walker, S. R., (Eds): Proceedings, II. 10th Australian and 14th Asian-Pacific weed conference, pp. 122–127. — Brisbane: Incitec.Google Scholar
  10. Michael, P. W., 1981: Alien plants. — InGroves, R. H., (Ed.): Australian vegetation, p. 44. — Cambridge: Cambridge University Press.Google Scholar
  11. Radford, I. J., 1997: Impact assessment for the biological control ofSenecio madagascariensis Poir. (Fireweed). — Thesis, University of Sydney.Google Scholar
  12. —, 1995: Chormosome counts for the Australian weeds known asSenecio madagascariensis (Asteraceae). — Austral. Syst. Bot.8: 1029–1033.Google Scholar
  13. Sindel, B. M., 1986: The ecology and control of fireweed (Senecio madagascariensis Poir.). — Pl. Protect. Quart.1: 163–172.Google Scholar

Copyright information

© Springer-Verlag 1998

Authors and Affiliations

  • L. J. Scott
    • 1
  • B. C. Congdon
    • 2
  • J. Playford
    • 3
  1. 1.Cooperative Research Centre for Tropical Pest ManagementUniversity of QueenslandBrisbaneAustralia
  2. 2.Cooperative Research Centre for Tropical Pest ManagementUniversity of QueenslandBrisbaneAustralia
  3. 3.Department of BotanyUniversity of QueenslandBirsbaneAustralia

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