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. 1980 May;95(1):225–236. doi: 10.1093/genetics/95.1.225

Allozyme Frequency Changes Associated with Selection for Increased Grain Yield in Maize (ZEA MAYS L.)

C W Stuber 1,2,3,4, R H Moll 1,2,3,4, M M Goodman 1,2,3,4, H E Schaffer 1,2,3,4, B S Weir 1,2,3,4
PMCID: PMC1214218  PMID: 17249034

Abstract

Frequency changes of alleles at eight enzyme loci were monitored in four long-term maize selection experiments. The results indicate that changes in frequencies of the alleles at these loci are associated with changes due to selection for improved grain yield. The frequencies changed more than is consistent with the hypothesis of selective neutrality. In addition, significant deviations from a random-drift model were nearly always accompanied by significant linear trends as would result if allozyme frequencies respond to directional selection. Evaluations of linkages and linkage disequilibria in the selected populations indicate that the eight enzyme loci responded independently as selection progressed.

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Selected References

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  1. Yang N. S., Sorenson J. C., Scandalios J. G. Genetic control of mitochondrial malate dehydrogenases: evidence for duplicated chromosome segments. Proc Natl Acad Sci U S A. 1977 Jan;74(1):310–314. doi: 10.1073/pnas.74.1.310. [DOI] [PMC free article] [PubMed] [Google Scholar]

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