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Inbreeding coefficients of field populations of Kochia scoparia using chlorsulfuron resistance as a phenotypic marker

Published online by Cambridge University Press:  12 June 2017

Mary J. Guttieri ,
Charlotte V. Eberlein  and
Edward J. Souza
Charlotte V. Eberlein
Affiliation:
University of Idaho, Aberdeen, ID 83210
Edward J. Souza
Affiliation:
University of Idaho, Aberdeen, ID 83210
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Abstract

Inbreeding coefficients were determined for nine southeastern Idaho kochia populations using chlorsulfuron resistance as a phenotypic marker. Inbreeding coefficients in six of the populations approximated 0, indicating that these field populations were random mating. One population had an inbreeding coefficient of 0.32, indicating partial selfing. No susceptible genotypes were identified in one population, which suggested recent selection and skewed the inbreeding coefficient. One population had an inbreeding coefficient of −0.19, suggesting either heterozygote advantage or some recent selection in the population. Our results suggest that kochia populations generally approximate random mating. Therefore, unlinked alleles will be independently assorted in field populations of kochia.

Keywords

Chlorsulfuronkochia, Kochia scoparia L. (Schrad.) KCHSCInbreeding coefficientherbicide resistance
Type
Weed Biology and Ecology
Information
Weed Science , Volume 46 , Issue 5 , October 1998 , pp. 521 - 525
Copyright
Copyright © 1998 by the Weed Science Society of America 

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References

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