Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników
1999 | 44 | 2 |
Tytuł artykułu

Fluctuating asymmetry and allozyme variability in an isolated springbok Antidorcas marsupialis population from the Chelmsford Nature Reserve

Warianty tytułu
Języki publikacji
Allozyme variability and fluctuating asymmetry (FA) in skull morphology were used to test the hypothesis of inbreeding in an isolated springbok Antidorcas marsu­pialis fZimmermann, 1780) population from the Chelmsford Nature Reserve, South Africa. Of 39 loci studied in a sample of 30 animals, five displayed allelic polymorphism. Average heterozygosity of 1.8% was not appreciably lower than a value of 2% calculated for 49 animals from a control group from Beniontein Game Farm in the Northern Cape Province, South Africa. Proportion of polymorphic loci and average number of alleles per locus were identical in both populations (10.3% and 1.1). Morphological analysis contradicted the prediction of increased fluctuating asymmetry due to the likelihood of inbreeding in a small, isolated population, with FA almost always higher in the control compared to Chelmsford. Chelmsford animals were however smaller than control animals for seven out of 9 cranial and horn variables analysed (significantly so in four cases), hich could conceivably be explained by environmental influences. It is concluded that loss of genetic diversity is not a problem in the Chelmsford springbok population, although this does not negate the possibility that physical deformities occurring in the population may indeed be genetically induced.
Opis fizyczny
  • University of the North, P-Bag X1106, Sovenga, 0727, South Africa
  • Bigalke R. C. and Van Hensbergen H. J. 1992. Observations ort a reproductively isolated population of blesbok (Damaliscus dorcas phillipsi) in a mineral deficient environment. [In: Ongutés/Unguiates 91. F. Spitz, G. Janeau, G. Gonzalez and S. Aulagnier, eds]. Société Française pour l'Etude et ala Protection des Mammiferes - Institut de Recherche sur les Gramd Mammiferes, Paris: 497-503.
  • Bigalke R. C., Hart! G. B., Berry M. P. S. and Van Hensbergen H. J. 1993. Population genetics of the springbok Antidorcas marsupialis - a preliminary study. [In: Ecological genetics in mammals. G . B. Hartl and J, Markowski, eds]. Acta Theriologica 38, Suppl. 2: 103-111.
  • Borkowska A. and Ratkiewicz M. 1996. Relationship between allozyme heterozygosity and gut morphology in Apodemus agrarius. Acta Theriologica 41: 367-374.
  • De Blase A. F. and Martin R. E. 1981. A manual of mammalogy. With keys to families of the world. William C. Brown Company Publishers, Dubuque, Iowa: 1-436.
  • Foley R. A. and Atkinson S. 1984. A dental abnormality among a population of Defassa waterbuck (Kobus defassa Ruppell 1835). African Journal of Ecology 22: 289-294.
  • Grobler J. P. and Van der Bank F. H. 1994. Isozyme variation in South African impala (Aepyceros melampus) populations under different management regimes. South African Journal of Wildlife Research 24B: 89-94.
  • Harris H, and Hopkinson D. A. 1976. Handbook of enzyme electrophoresis in human genetics. North-Holland, Amsterdam: 1-318.
  • Hart G. B., Lang G., Klein F. and Willing R. 1991. Relationships between allozymes, heterozygosity and morphological characters in red deer (Cervus elaphus), and the influence of selective hunting on allele frequency distributions. Heredity 66: 343-350.
  • Lacy R. C. 1992. The effects of inbreeding on isolated populations: are minimum viable population sizes predictable. [In: Conservation biology. The theory and practice of nature conservation, pre­servation and management. P, L. Fiedler and S. K. Jain, edsl. Chapman and Hall, New York & London: 278-296.
  • Lacy R. C. and Horner B. E. 1996, Effects of inbreeding on skeletal development of Rattus villo- sissimus. Journal of Heredity 87: 277-287.
  • Murphy R. W., Sites J. W., Buth D. G. and Haufler C. H. 1990. Proteins 1: isozyme electrophoresis. [In: Molecular systematics. D. M. Hillis and C. Morris, eds]. Sinauer Associates, Massachusetts: 45-126.
  • Nei M. 1972. Genetic distances between populations. The American Naturalist 106: 282-292.
  • Nei M. 1975. Molecular population genetics and evolution. North-Holland, Amsterdam: 1-288.
  • Palmer A. R and Strobeck C. 1986. Fluctuating asymmetry: measurement, analysis, patterns. Annual Review of Ecology and Systematics 17: 391-421.
  • Patterson B. D. and Patton J. L. 1990 Fluctuating asymmetry and allozymic heterozygosity among natural populations of the pocket gophers Thomomys bottae. Biologicai Journal of the Linnaean Society 40: 21-36.
  • Rautenbach 1. L. 1971. Ageing criteria in the springbok, Antidorcus marsupialis, {Zimmerman, 1780) (Artiodactyla: Bovidae). Annals of the Transvaal Museum 27: 83-133.
  • Robinson T. J., Op't Hof J. and Geerthsen J M, P. 1978, Polymorphic genetic markers in the springbok Antidorcas marsupialis (Bovidae). South African Journal of Science 74: 184-186.
  • Reed K. H. 1987. Transferrin variation and body size in reindeer, Rangifer tarandus L. Hereditas 106: 67-71.
  • Scribner K. T , Smith M. H. and Johns P. E. 1989, Environmental and genetic components of antler growth in white-tailed deer. Journal of Mammalogy 70: 284-291.
  • Skinner J. D, and Smithers R. H, N. 1990, The mammals of the southern African subregion. University of Pretoria, Pretoria: 1-771.
  • Slatis H, M, 1960, An analysis of inbreeding in the European bison. Genetics 45: 275-287,
  • Smith M. H., Chesser R. K., Cothran E. G. and Johns P. E. 1983. Genetic variability and antler growth in a natural population of white-tailed deer, [In: Antler development in Cervidae. R. Brown, ed], Ceasar Kleberg Foundation, Kingsville: 365-387
  • Smithers R. H, N. 1983, The mammals of the Southern African Subregion. University of Pretoria, Pretoria: 1-736.
  • Soule M. 1978. Heterozygosity and developmental stability; another look, Evolution 33: 396-401.
  • Vrba E. S., Vaisnys J. R., Gatesby J. E., De Salle R. and Wei K. Y. 1994. Analysis of paedomorphosis using allometric characters: the example of Reduncini antelopes (Bovidae, Mammalia). Systematic Biology 43: 92-116.
  • Watt W. B. 1985. Bioenergetics and evolutionary genetics: opportunities for new synthesis. The American Naturalist 125: 118-143,
  • Wright S. 1965. The interpretation of population structure by F-statistics with special regard to systems of mating. Evolution 19: 395-420.
Typ dokumentu
Identyfikator YADDA
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.