Adaptation for herbicide tolerance in populations of <i>Avena fatua</i>

Jana, S.; Naylor, J. M.

doi:10.1139/b82-208

Cited by 23 publications

(12 citation statements)

References 11 publications

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“…resistant to new stresses after the occurrence of selection. Wild oat is known for its ability to maintain genetic diversity under strong selection pressure(Jana and Naylor 1982). The ability of wild oat to maintain genetic variability is probably a key factor in the weediness of the species.Grassy weeds with ACCase inhibitor resistance have a variety of cross-resistance patterns.…”

mentioning

confidence: 99%

Characterization of cross-resistance patterns in acetyl-CoA carboxylase inhibitor resistant wild oat (Avena fatua)

1997

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The purpose of this study was to determine cross-resistance patterns among wild oat lines resistant to acetyl-CoA carboxylase (ACCase) inhibitors and to determine which, if any, cross-resistant type was more common than another. Discriminatory concentrations of two aryloxyphenoxy-propionates (APP) and three cyclohexanediones (CHD) were determined using a petri-dish bioassay. These concentrations were then applied to 82 resistant wild oat lines identified in previous studies. In addition, two resistant standards (UM1 and UM33) and a susceptible standard (UM5) were included in the experiments. Coleoptile lengths expressed as percentages of untreated controls were used to assess the level of resistance to each herbicide. Large variations were observed among wild oat lines and herbicides. However, cluster analysis summarized the relationship between the five herbicides (variables) and the wild oat lines into three main cross-resistance types. Type A included wild oat lines with high resistance to APP herbicides and no or low resistance to CHD herbicides. Types B and C included those with low to moderate resistant and high levels of resistance to all five herbicides, respectively. Type C was the most common cross-resistance type. Relationships among herbicides were determined using pairwise correlation and principal component analysis (PCA). All correlations were high between APP herbicides and between CHD herbicides but not between APP and CHD herbicides. The first two axes of the PCA accounted for 88.4% of the total variance, with the first axis correlated to the CHD herbicides and the second axis correlated to the APP herbicides. In the PCA, wild oat lines were segregated into the three types identified in the cluster analysis. Although CHD and APP herbicides bind at the same region on the ACCase, resistant wild oat lines respond differently to them.

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confidence: 99%

Characterization of cross-resistance patterns in acetyl-CoA carboxylase inhibitor resistant wild oat (Avena fatua)

1997

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“…The emergence of HRWs threatens this technology specifically, and the utility of herbicides generally. Transgenic HRWs have not evolved, but naturally occurring HRWs have repeatedly threatened canola production in western Canada (Jensen and Bandeen 1979;Jana and Naylor 1982;LeBaron 1984;Beversdorf 1987), and are on the verge of threatening winter wheat production in the northwestern U.S. Stallings et al 1994;Thompson et al 1994).…”

Section: Economic Impactmentioning

confidence: 99%

“…Oats (Avena sativa) are valued for the relatively high protein and fat content of the seeds, and are chiefly a crop of north temperate areas such as North America, northern Europe, and Russia (Langer and Hill 1982). Wild oat, A vena fatua, is grown as a crop in Scotland, but is a serious agricultural weed elsewhere in the world (Thomas and Jones 1976;Jana and Naylor 1982). Wild oat is weedy in grainfields, rangelands, and other environments in the U.S. and southern Canada (Reed and Hughes 1970;Bridges 1992).…”

Section: Oatsmentioning

confidence: 99%

Movement of Crop Transgenes Into Wild Plants

Keeler¹,

Turner²,

Bolick³

2018

Herbicide- Resistant Crops

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“…Several studies predicted the potential for hexaploid wild Avena spp. populations to evolve herbicide resistance under the recurrent use of herbicide treatment (Jana & Naylor, ), including evolution of cross‐resistance (e.g. Miller et al ., ; Seefeldt et al ., ; Cocker et al ., ; Papapanagiotou et al ., ; Ahmad‐Hamdani et al ., ; Keith et al ., ; Busi et al ., ), strongly suggesting NTSR.…”

Section: Introductionmentioning

confidence: 99%

A quantitative genetic examination of non‐target‐site resistance applied to Avena species

Darmency

Uludağ

2018

Weed Research

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Quantitative genetics tools can be used to assess whether using herbicides at low doses drive selection on standing genetic variation in populations leading to non-target-site resistance (NTSR). These tools are particularly important for estimating the number of genes involved and the potential speed of evolution. A short cut to answering questions about the evolution of NTSR may be to measure heritability. The heritability index (H) provides a measure of the potential to develop NTSR and can be simply calculated from classical dose-response experiments. This measure and the associated experimental designs are discussed with two applied examples on Avena spp. (A. fatua and A. sterilis). In these examples, H values ranged from 0.24 to 0.73, which means that selection for NTSR is highly probable in cases with high H value. We suggest that structuring plants into genetic groups (e.g. families or populations) can contribute to our understanding of the evolutionary potential of populations and plant species to evolve resistance, without increasing experimental cost and time.

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Adaptation for herbicide tolerance in populations of Avena fatua

Cited by 23 publications

References 11 publications

Characterization of cross-resistance patterns in acetyl-CoA carboxylase inhibitor resistant wild oat (Avena fatua)

Characterization of cross-resistance patterns in acetyl-CoA carboxylase inhibitor resistant wild oat (Avena fatua)

Movement of Crop Transgenes Into Wild Plants

A quantitative genetic examination of non‐target‐site resistance applied to Avena species

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