Abstract
Variation at 10 polymorphic isozyme loci was examined for nine populations of quaking aspen (Populustremuloides Michx.) in Minnesota. Mean observed and expected estimates of isozyme heterozygosity were 0.217 and 0.220, respectively, with no significant differences in allele frequencies among populations and no significant deviations from genotype frequencies expected under Hardy–Weinberg equilibrium. These results suggest relatively high levels of gene flow among populations and a mating system involving little inbreeding.
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Claims 4
Claim · model-written summary
Observed and expected isozyme heterozygosity averaged 0.217 and 0.220.
- Taxon
- quaking aspen
Populus tremuloidest0 - Outcome
- isozyme heterozygositye0
- Value
- 0.217 and 0.220e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mean observed and expected estimates of isozyme heterozygosity were 0.217 and 0.220, respectively”
t0“quaking aspen in Minnesota”
Claim · model-written summary
Allele frequencies did not differ significantly among populations.
- Taxon
- quaking aspenPopulus tremuloidest0
- Outcome
- allele frequenciese0
- Direction
- no significant differencese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no significant differences in allele frequencies among populations”
t0“quaking aspen in Minnesota”
Claim · model-written summary
Genotype frequencies did not deviate significantly from Hardy–Weinberg expectations.
- Taxon
- quaking aspenPopulus tremuloidest0
- Outcome
- genotype frequenciese0
- Direction
- no significant deviationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no significant deviations from genotype frequencies expected under Hardy–Weinberg equilibrium”
t0“quaking aspen in Minnesota”
Claim · model-written summary
The results suggest high gene flow and little inbreeding among populations.
- Taxon
- quaking aspenPopulus tremuloidest0
- Outcome
- relatively high levels of gene flow among populations and a mating system involving little inbreedinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These results suggest relatively high levels of gene flow among populations and a mating system involving little inbreeding”
t0“quaking aspen in Minnesota”