Isozymes of an autopolyploid shrub, Atriplex canescens (Chenopodiaceae)

Authors

E. Durant McArthur, USDA Forest Service, Intermountain Research Station, Provo, Utah
Stewart C. Sanderson, USDA Forest Service, Intermountain Research Station, Provo, Uah
D. Carl Freeman, Wayne State University, Detroit, Michigan

Abstract

Diploid, tetraploid, and hexaploid populations of Atriplex canescens (x=9) were examined for 18 isozyme systems. Of 24 interpretable loci, only one locus (Per₁) was polymorphic. Another locus (Per₂) showed a dosage effect. Genetic distance values, D, ranged from near 0 to 0.05, which are in the normal range for local species races. Results from clonal ramets gave identical results. The data and analyses support an essentially autopolyploid origin for the polyploid populations examined.

Recommended Citation

McArthur, E. Durant; Sanderson, Stewart C.; and Freeman, D. Carl (1986) "Isozymes of an autopolyploid shrub, Atriplex canescens (Chenopodiaceae)," Great Basin Naturalist: Vol. 46: No. 1, Article 16.
Available at: https://scholarsarchive.byu.edu/gbn/vol46/iss1/16