Advertisement

Journal of Plant Research

, Volume 107, Issue 3, pp 221–227 | Cite as

Allozyme diversity and the evolution ofSymplocos (Symplocaceae) on the Bonin (Ogasawara) Islands

  • Akiko Soejima
  • Hidetoshi Nagamasu
  • Motomi Ito
  • Mikio Ono
Original Articles

Abstract

To study the origin and speciation of plants in oceanic islands, electrophoretic analyses have been done on three endemic species ofSymplocos in the Bonin Islands as well as on three other species;S. kuroki, S. nakaharae andS. tanakae which are considered to be closely related to the Bonin endemics. There occur three species:S. kawakamii, S. pergracilis andS. boninensis in Bonin. The genusSymplocos is one which is considered to be diversified in the Bonin Islands.

Seven enzyme systems presumed to be encoded by 18 loci were examined. The genetic diversity was low in the island species, as reported in some oceanic island plants of Hawaii and the Bonin Islands. The three endemics share high genetic identities and they clustered together in the tree drawn by the UPGMA method, suggesting that they are a monophyletic group, that is, they result from a single introduction.

Key words

Allozyme Bonin Islands Oceanic islands Symplocos 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Cardy, B.J., Stuber, C.W. and Goodman, M.M. 1981. Techniques for starch gel electrophoresis of enzyme from maize (Zea mays), revised. Inst. Stat. Mimeogr. Ser. 1317, North Carolina State Univ.Google Scholar
  2. Crawford, D.J. 1983. Phylogenetic and systematic inferences from electrophoretic studies. In S.D. Tanksley and T.J. Orton, eds, Isozymes in Plant Genetics and Breeding, Part A. pp. 257–287. Elsever, New York.Google Scholar
  3. Crawford, D.J., Stuessy, T.F., Haines, D.W., Cosner, M.B., Silva, O.M. andLopez, P. 1992. Allozyme diversity within and divergence among four species ofRobinsonia (Asteraceae: Senecioneae), a genus endemic to the Juan Fernandez Islands, Chile., Amer. J. Bot.79: 962–966.Google Scholar
  4. Gottlieb, L.D. 1981. Electrophoretic evidence and plant populations, Prog. Phytochem.7: 1–46.Google Scholar
  5. Hamrick, J.L. andGodt, M.J.W. 1990. Allozyme diversity in plant species.In A.H.D. Brown, M.T. Clegg, A.C. Kehler, and B.S. Weir, eds., Plant population genetics, breeding, and genetic resources. pp. 43–63. Sinaner Associates, Sunderland, MA.Google Scholar
  6. Helenurm, K. andGanders, F.R. 1985. Adaptive radiation and genetic differentiation in HawaiianBidens. Evolution38: 223–225.Google Scholar
  7. Ito, M. andOno, M. 1990. Allozyme diversity and the evolution ofCrepidiastrum (Compositae) on the Bonin (Ogasawara) Islands. Bot. Mag. Tokyo103: 449–459.Google Scholar
  8. Ito, M., Soejima, A., Endo, C. andOno, M. 1990. Adaptive radiation of the endemic plants in Bonin Islands.—Speciation observed with allozyme polymorphism. Ogasawara-Kenkyu-Nenpo14: 15–20. (in Japanese)Google Scholar
  9. Kato, T. 1990. Taxonomical studies on theHypericum pseudopetiolatum complex. IV. Allozyme diversity and phylogenetic inference., J. Fac. Sci. Tokyo III14: 341–368.Google Scholar
  10. Kimura, T. 1991. The Neogene.In T. Kimura, I. Hayami and S. Yoshida, eds., Geology of Japan. pp. 153–200. University of Tokyo Press, Tokyo.Google Scholar
  11. Lowrey, T.K. andCrawford, D.J. 1985. Allozyme diversity and evolution inTetramolopium (Compositae: Astereae) on the Hawaiian Islands. Syst. Bot.10: 64–72.Google Scholar
  12. Nagamasu, H. 1987. Notes onSymplocos lucida and related species in Japan. Acta Phytotax. Geobot.38: 283–291. (in Japanese)Google Scholar
  13. Nagamasu, H. 1993. The Symplocaceae of Japan. Contr. Biol. Lab. Kyoto Univ.28: 173–260.Google Scholar
  14. Nei, M. 1972. Genetic distance between populations. Amer. Natur.106: 283–292.CrossRefGoogle Scholar
  15. Nei, M. 1973. Analysis of gene diversity in subdivided populations. Proc. Nat. Acad. Sci. USA70: 3321–3323.PubMedGoogle Scholar
  16. Nei, M. andRoychoudhury, A.K. 1974. Sampling variances of heterozygosity and genetic distance. Genetics76: 379–390.PubMedGoogle Scholar
  17. Nei, M., Stephans, J.C. andSaito, N. 1985. Methods for computing the standard errors of branching points in an evolutionary tree and their application to molecular data from humans and apes. Mol. Biol. Evol.2: 66–85.PubMedGoogle Scholar
  18. Ono, M. andKobayashi, S. 1985. Flowering plants endemic to the Bonin Islands.In M. Ono and K. Okutomi, eds., Endemic Plant Species and Vegetation of Bonin Islands. pp. 1–96, Aboc-sha, Kamakura. (in Japanese)Google Scholar
  19. Rieseberg, L.H., Beckstrom-Sternberg, S.M., Liston, A. andArias, D.M. 1991. Phylogenetics and systematic inferences from chloroplast DNA and isozyme variation inHelianthus (Asteraceae). Sys. Bot.16: 50–76.Google Scholar
  20. Shimizu, Y. 1989. Ökologische Eigenschaften der Waldvegetation auf den ozeanischen Inseln, Ogasawara. (Ecological features of forest vegetation, in oceanic island, Ogasawara.)In A. Miyawaki, ed., The Vegetation of Japan, vol. 10, Okinawa and Ogasawara. pp. 159–203. Shibundo, Tokyo. (in Japanese)Google Scholar
  21. Shimizu, Y. 1992. Origin ofDistylium dry forest and occurrence of endangered species in the Bonin Islands, Pacific Science46: 179–196.Google Scholar
  22. Shimizu, Y. andTabata, H. 1991. Forest structures, and distribution on a Pacific island, with reference to ecological release and speciation, Pacific Science45: 28–49.Google Scholar
  23. Shimizu, Y. and Yasui, T. 1992. Flora of Ani-jima and distribution of rare plant species.In WWFJ Science Report. Vol. 1 Part 1 (May 1992), pp. 107–122. (in Japanese)Google Scholar
  24. Sneath, P.H. andSokal, R.R. 1973. Numerical Taxonomy. W.H. Freeman and company, San Francisco.Google Scholar
  25. Soltis, D.E., Haufler, C.H., Darrow, D.C. andGastony, G.J. 1983. Starch gel electrophoresis of fern: a compilation of grinding buffers, gel and electrode buffers, and staining schedules. Amer. Fern J.73: 9–27.Google Scholar
  26. Soltis, P.S. andSoltis, D.E. 1987. Population structure and estimates of gene flow in the homosporous fernPolystichum munitum, Evolution41: 620–629.Google Scholar
  27. Toyoda, T. 1981. Vegetation of the Bonin Islands. In T. Toyoda, ed., Flora of Bonin Is., pp. 317–327. Abocsha, Kamakura. (in Japanese)Google Scholar
  28. Yahara, T., Kawahara, T., Crawford, D.J., Ito, M. andWatanabe, K. 1989. Extensive gene duplications in diploidEupatorium (Asteraceae). Amer. J. Bot.76: 1247–1253.Google Scholar
  29. Witter, M.S. andCarr, G.D. 1988. Adaptive radiation and genetic differentiation in the Hawaiian silversword alliance (Compositae: Madiinae). Evolution42: 1278–1287.Google Scholar

Copyright information

© The Botanical Society of Japan 1994

Authors and Affiliations

  • Akiko Soejima
    • 1
  • Hidetoshi Nagamasu
    • 2
  • Motomi Ito
    • 3
  • Mikio Ono
    • 4
  1. 1.Department of Life Sciences, College of Integrated Arts and SciencesUniversity of Osaka PrefectureSakai, OsakaJapan
  2. 2.Department of Environment Sciences, Faculty of Integrated Human StudiesKyoto UniversityKyotoJapan
  3. 3.Department of Biology, Faculty of ScienceChiba UniversityChibaJapan
  4. 4.Makino Herbarium, Faculty of ScienceTokyo Metropolitan UniversityHachioji, TokyoJapan

Personalised recommendations