TY - JOUR
T1 - Isozyme variation in diploid tropical and octoploid subtropical-temperate species of Bulnesia
AU - Hunziker, J. H.
AU - Schaal, B. A.
N1 - Funding Information:
The authors are affiliated, respectively, with the Departamento de Ciencias Biologicas, Facultad dc Ciencias Exaclas y Naturales, Univcrsidad dc Buenos Aires, 1428 Buenos Aires, Argentina: and Department of Biology, Washington University, St. Louis. MO 63130. They are grateful to the J. S. Guggenheim Memorial Foundation for a grant to Juan H. Hunziker. They thank W. J. Leverich for reading the manuscript. The work was supported by National Science Foundation grant DEB-8010335. Juan H. Hunziker is a member of the "Carrera del lnvestigador del Consejo Nacional de Invcstigaciones Cientificas y Tecnicas." © 1983, American Genetic Association.
PY - 1983/9
Y1 - 1983/9
N2 - Isozyme variation for 14 enzyme systems was studied in two diploid tropical species of Bulnesia (Zygophyllaceae), B. arborea and B. carrapo, and in the subtropicaltemperate octoploid, B. bonariensis. The estimated proportions of polymorphic loci for the tropical species appear low, 28.6 percent and 22.7 percent, respectively. The octoploid species had a much higher estimated proportion of polymorphic loci, 46.1 percent, and exhibited complex allozyme phenotypes at some loci. Seed populations of Bulnesia species have genotypic proportions in Hardy-Weinberg equilibrium for esterase and malic dehydrogenase loci. The present study confirms earlier reports that plant and animal polyploids display more genetic variation and biochemical diversity than do diploid species.
AB - Isozyme variation for 14 enzyme systems was studied in two diploid tropical species of Bulnesia (Zygophyllaceae), B. arborea and B. carrapo, and in the subtropicaltemperate octoploid, B. bonariensis. The estimated proportions of polymorphic loci for the tropical species appear low, 28.6 percent and 22.7 percent, respectively. The octoploid species had a much higher estimated proportion of polymorphic loci, 46.1 percent, and exhibited complex allozyme phenotypes at some loci. Seed populations of Bulnesia species have genotypic proportions in Hardy-Weinberg equilibrium for esterase and malic dehydrogenase loci. The present study confirms earlier reports that plant and animal polyploids display more genetic variation and biochemical diversity than do diploid species.
UR - http://www.scopus.com/inward/record.url?scp=0001490321&partnerID=8YFLogxK
U2 - 10.1093/oxfordjournals.jhered.a109810
DO - 10.1093/oxfordjournals.jhered.a109810
M3 - Article
AN - SCOPUS:0001490321
SN - 0022-1503
VL - 74
SP - 358
EP - 360
JO - Journal of Heredity
JF - Journal of Heredity
IS - 5
ER -