Coral Reefs

, Volume 3, Issue 3, pp 149–156 | Cite as

Genetic differentiation amongst populations of the coral Pocillopora damicornis off southwestern Australia

  • James A. Stoddart
Article

Abstract

An electrophoretic study of genetic differentiation amongst local populations of the reef-coral Pocillopora damicornis was used to group coral heads into units defined as the area of effective dispersal of a clone, and termed “colonies”. For reefs off southwestern Australia, colonies were usually under a few hundred metres in extent. Although most new recruits within a colony were derived asexually, sexually produced propagules acted to connect populations outside the boundaries of a colony. Such connections were weak, and allelic frequencies varied considerably over a few kilometres. The primary agent of genetic differentiation was suggested to be the small effective population size resulting from the asexual proliferation of a few genotypes at any site. The effective number of genotypes per colony was approximately six. Asexual reproduction appears also to limit gene flow and accentuate selection in this species.

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References

  1. Bell G (1982) The masterpiece of nature: the evolution and genetics of sexuality. Croom Helm, LondonGoogle Scholar
  2. Connell JH (1973) Population ecology of reef-building corals. In: Jones OA, Endean R (ed) Biology and geology of coral reefs, vol 2: Biology I. Academic Press, New York London, pp 205–245Google Scholar
  3. Crisp DH (1976) The role of the pelagic larva. In: Spencer-Davis P (ed) Zoology. Pergamon Press, London, pp 145–155 (Perspectives in environmental biology, vol 1)Google Scholar
  4. Crow JF, Kimura M (1970) An introduction to population genetics theory. Harper & Row, New YorkGoogle Scholar
  5. Curie-Cohen M (1982) Estimates of inbreeding in a natural population: a comparison of sampling properties. Genetics 100:339–358Google Scholar
  6. Dana TF (1975) Development of contemporary eastern Pacific reef corals. Mar Biol 33:355–374Google Scholar
  7. Davis BJ, DeMartini EE, McGee K (1981) Gene flow among populations of a teleost (Painted greenling, Oxylebius pictus) from Puget Sound to southern California. Mar Biol 65:17–23Google Scholar
  8. Doyle RW (1975) Settlement of planktonic larvae; a theory of habitat selection in varying environments. Am Nat 109:113–125Google Scholar
  9. Eanes WF, Koehn RK (1978) An analysis of genetic structure in the Monarch Butterfly, Danaus plexippus L. Evolution 32:784–797Google Scholar
  10. Gartner-Kepkay KE, Zouros E, Dickie LM, Freeman KR (1983) Genetic differentiation in the face of gene flow: a study of mussel populations from a single Nova Scotian embayment. Can J Fish Aquat Sci 40:443–451Google Scholar
  11. Gilbert N (1973) Biometrical interpretation. Clarendon Press, OxfordGoogle Scholar
  12. Glesener R, Tilman D (1978) Sexuality and the components of environmental uncertainty: clues from geographical parthenogenesis. Am Nat 112:659–673Google Scholar
  13. Grant WS, Milner GB, Krasnowski P, Utter FM (1980) Use of biochemical genetic variants for identification of Sockeye salmon (Oncorhynchus nerka) stocks in Cook Inlet, Alaska. Can J Fish Aquat Sci 37:1236–1247Google Scholar
  14. Harriot V (1983) Reproductive seasonality, settlement, and postsettlement mortality of Pocillopora damicornis (Linnaeus), at Lizard Island. Coral Reefs 2:151–158Google Scholar
  15. Hedgecock D, Schleser RA, Nelson K (1976) Application of biochemical genetics to aquaculture. J Fish Res Board Can 53:1108–1119Google Scholar
  16. Highsmith RC (1982) Reproduction by fragmentation in corals. Mar Ecol Prog Ser 7:207–228Google Scholar
  17. Johnson MS (1971) Adaptive lactate dehydrogenase variation in the crested blenny, Anoplarchus. Heredity 27:205–226Google Scholar
  18. Johnson MS, Black R (1984) The Wahlund effect and the scale of geographical variation in an intertidal limpet, Siphonaria sp. Mar Biol 79:295–302Google Scholar
  19. Kimura M, Weiss WH (1964) The stepping-stone model of genetic structure and the decrease of genetic correlation with distance. Genetics 49:561–576Google Scholar
  20. Koehn RK, Turano FJ, Mitton JB (1973) Population genetics of marine pelecypods. II. Genetic differentiation in microhabitals of Modiolus demissus. Evolution 27:100–105Google Scholar
  21. Levinton JS, Suchanek TH (1978) Geographic variation, niche breadth and genetic differentiation at different geographic scales in the mussels Mytilus californianus and Medulis. Mar Biol 49:363–375Google Scholar
  22. Li CC (1969) Population subdivision with respect to multiple alleles. Ann Hum Genet 33:23–29Google Scholar
  23. Maynard Smith J (1978) The evolution of sex. Cambridge University Press, CambridgeGoogle Scholar
  24. Nei M (1978) Estimation of average heterozygosity and genetic distance from a small number of individuals. Genetics 89:583–590Google Scholar
  25. Pearson RG (1981) Recovery and recolonisation of coral reefs. Mar Ecol Prog Ser 4:105–122Google Scholar
  26. Phillips BF (1981) The circulation of the southeastern Indian Ocean and the planktonic life cycle of the Western Rock Lobster. Oceanogr Mar Biol, Ann Rev 19:11–39Google Scholar
  27. Richardson BJ (1982) Geographical distribution of electrophoretically detected protein variation in Australian commercial fishes. II. Western King Prawn, Penaeus latisulcatus Kishinouye. Aust J Mar Freshwater Res 33:933–937Google Scholar
  28. Richmond RH (1981) Energetic considerations in the dispersal of Pocillopora damicornis (Linnaeus) planulae. Proc 4th int Coral Reef Symp 2:153–156Google Scholar
  29. Rochford DJ (1969) Scasonal variations in the Indian Ocean along 110°E. I. Hydrological structure of the upper 500 metres. Aust J Mar Freshwater Res 20:1–50Google Scholar
  30. Rosen BR (1979) Introduction, modules, members and communities. In: Larwood G, Rosen BR (eds) Biology and systematics of colonial organisms. Academic Press, London New York, pp XIII-XXXVGoogle Scholar
  31. Scheltema RS (1978) On the relationship between dispersal of pelagic veliger larvae and the evolution of marine prosobranch gastropods. In: Battaglia B, Beardmore JA (eds) Marine organisms: genetics, ecology and evolution. Plenum Press, New York, pp 303–322Google Scholar
  32. Siegels S (1956) Non-parametric statistics for the behavioural sciences. McGraw-Hill, New YorkGoogle Scholar
  33. Sneath PHA, Sokal RR (1973) Numerical taxonomy. Freeman, San FranciscoGoogle Scholar
  34. Snedecor G, Irwin MR (1938) On the chi-square test for homogeneity. Iowa State J Sci 8:75–81Google Scholar
  35. Stoddart JA (1983) Asexual production of planulae in the coral Pocillopora damicornis; Mar Biol 76:279–284Google Scholar
  36. Stoddart JA (1984a) Genetic structure within populations of the coral Pocillopora damicornis. Mar Biol 75:81:19–30Google Scholar
  37. Stoddart JA (1984b) The genetical structure of populations of the coral Pocillopora damicornis. PhD thesis, University of Western AustraliaGoogle Scholar
  38. Stoddart JA (1984) Biochemical genetics of Pocillopora damicornis in Kaneohe Bay, Oahu, Hawaii. In: Jokiel PL, Richmond RH (eds) Population biology of coral reefs. Hawaii Inst Mar Biol, Tech Rep No 37Google Scholar
  39. Williams GC (1975) Sex and evolution Princeton University Press, PrincetonGoogle Scholar
  40. Williams GC, Koehn RK, Milton JB (1973) Genetic differentiation without isolation in the American eel, Anguilla rostrata. Evolution 27:192–204Google Scholar
  41. Winans GA (1980) Geographic variation in the milkfish Chanos chanos. I. Biochemical evidence. Evolution 34:558–574Google Scholar
  42. Wright S (1943) Isolation by distance. Genetics 28:114–138Google Scholar
  43. Wright S (1951) The genetic structure of populations. Ann Eugen 15:323–354Google Scholar
  44. Wright S (1978) Evolution of the genetics of populations, vol IV: Variability in natural populations. University of Chicago Press, ChicagoGoogle Scholar

Copyright information

© Springer-Verlag 1984

Authors and Affiliations

  • James A. Stoddart
    • 1
  1. 1.Department of ZoologyUniversity of Western AustraliaNedlandsAustralia
  2. 2.Australian Institute of Marine ScienceTownsville M.C.Australia

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