Full TGIF Record # 317087
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Web URL(s):https://scisoc.confex.com/scisoc/2021am/meetingapp.cgi/Paper/135965
    Last checked: 03/29/2022
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Publication Type:
Content Type:Abstract or Summary only
Author(s):Russell, Eli C.; Rutland, Claudia Ann; Hall, Nathan; Patel, Jinesh; McElroy, J. Scott
Author Affiliation:Russell: Crop, Soil, and Environmental Sciences, Virginia Tech, Blacksburg, VA; Rutland and Hall: Department of Crop, Soil, and Environ. Sci., Auburn University, Auburn, AL; Patel: Crop, Soil and Environmental Sciences, Auburn University, Auburn, AL; McElroy: Auburn University, Auburn, AL
Title:Does variation in subgenome ╬▒-Tublin mutation induce variable mitotic-inhibiting herbicide resistance in Poa annua?
Section:Turf pest management oral III
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C05 turfgrass science
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Meeting Info.:Salt Lake City, Utah: November 7-10, 2021
Source:ASA, CSSA and SSSA International Annual Meetings. 2021, p. 135965.
Publishing Information:[Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America]
# of Pages:1
Abstract/Contents:"Mitotic-inhibiting herbicides are used to control Poa annua preemergent in managed turfgrass; however, resistance to mitotic-inhibiting herbicides has developed. Suspected resistant populations (R) were collected in Alabama and screened for resistance to prodiamine and dithiopyr. Three resistant populations were selected and rate response screens with prodiamine and dithiopyr were conducted. R1, R2, and R3 were 1.6, 16.5, and 4.6 times more resistant to prodiamine, respectively, than the susceptible population (S) based on seedling emergence response. R1, R2, and R3 were 4.6, 5.0, and 6.8 times more resistant, respectively, to dithiopyr than S based on seedling emergence. All three R populations contained the same known target site ╬▒-tubulin mutation Thr239-Ile; however, the subgenome location was different for each population. R1 contained a mutation on the supina subgenome, R2 contained mutations on both the supina and infirma subgenomes, and R3 contained mutations on both the supina and infirma subgenomes. Although all three R populations contained the Thr239-Ile mutation, their level of resistance varied. We believe that this variation is the result of what subgenome the mutation is located on. This is the first report of target-site ╬▒-tubulin mutations in Poa annua and the first report of a variable level of resistance to prodiamine based on the subgenome location of target-site mutations. This is also the first report in Poa annua of a target-site a-tubulin mutation associated with dithiopyr resistance."
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Russell, E. C., C. A. Rutland, N. Hall, J. Patel, and J. S. McElroy. 2021. Does variation in subgenome ╬▒-Tublin mutation induce variable mitotic-inhibiting herbicide resistance in Poa annua?. Agron. Abr. p. 135965.
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    Last checked: 03/29/2022
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