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Noncytoplasmic Inheritance of Atrazine Tolerance in Velvetleaf (Abutilon theophrasti)

Published online by Cambridge University Press:  12 June 2017

Robert N. Andersen  and
John W. Gronwald
Robert N. Andersen
Affiliation:
U.S. Dep. Agric., Agric. Res. Serv., Dep. Agron. and Plant Genetics, Univ. Minnesota, St. Paul, MN 55108
John W. Gronwald
Affiliation:
U.S. Dep. Agric., Agric. Res. Serv., Dep. Agron. and Plant Genetics, Univ. Minnesota, St. Paul, MN 55108
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Abstract

An accession of velvetleaf (Abutilon theophrasti Medik. # ABUTH) known to be highly tolerant of atrazine [6-chloro-N-ethyl-N-(1-methylethyl)-1,3,5-triazine-2,4-diamine] and a normal susceptible accession were crossed reciprocally. F1 plants were intermediate in response to atrazine, but they were more like the tolerant parent than the susceptible parent. The response of F1 plants was the same for each reciprocal cross, indicating that atrazine tolerance was not cytoplasmically inherited. Response of F2 plants to atrazine was consistent with a ratio of one tolerant: two intermediate: one susceptible. These results and further evaluations of F3 plants indicated that atrazine tolerance was controlled by a single, partially dominant gene.

Keywords

Herbicide resistancepartial dominanceincomplete dominancesingle geneABUTH
Type
Weed Biology and Ecology
Information
Weed Science , Volume 35 , Issue 4 , July 1987 , pp. 496 - 498
Copyright
Copyright © 1987 by the Weed Science Society of America 

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References

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