Heritability of paraquat tolerance in Lolium perenne L.

Faulkner, J. S.

doi:10.1007/bf00035869

Cited by 17 publications

(3 citation statements)

References 9 publications

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“…Collectively, segregation analysis of mesotrione resistance at both low and high rates indicated that this resistance is likely multigenic. Herbicide resistance with multigenic inheritance previously has been reported in other weed populations (e.g., Busi et al 2011;Faulkner 1974;Han et al 2014;Neve and Powles 2005).…”

Section: Populationmentioning

confidence: 77%

Genetics and Inheritance of Nontarget-Site Resistances to Atrazine and Mesotrione in a Waterhemp (Amaranthus tuberculatus) Population from Illinois

et al. 2015

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A waterhemp population (McLean County resistant, MCR) from McLean County, Illinois is resistant to both mesotrione and atrazine by elevated rates of herbicide metabolism. Research was conducted to investigate the inheritance of these resistance traits. Resistant and sensitive plants were crossed to obtain reciprocal F1populations, which were then used to create pseudo-F2and backcross (to sensitive parent; BCS) populations. The various populations were evaluated with whole-plant herbicide efficacy studies in a greenhouse. The responses of the F1populations to both mesotrione and atrazine were intermediate when compared with parental populations. In the case of atrazine, BCSand F2populations segregated 1 : 1 and 1 : 3, respectively, for susceptibility (S) : resistance (R), at a dose that controlled the sensitive parent but not the F1or resistant parent. For mesotrione, variability was observed within the F1populations, suggesting that mesotrione resistance is multigenic and the resistant parents used in the cross were not homozygous at the resistance loci. Furthermore, at low mesotrione doses, more F2plants survived than expected on the basis of a single-gene trait, whereas at high doses, fewer F2plants survived than expected. Dry weight data confirmed the conclusions obtained from survival data. Specifically, atrazine responses segregated into two discrete classes (R and S) in both the F2and BCSpopulations, whereas mesotrione responses showed continuous distributions of phenotypes in F2and BCSpopulations. We conclude that metabolism-based atrazine resistance in MCR is conferred by a single major gene, whereas inheritance of mesotrione resistance in this population is complex.

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Section: Populationmentioning

confidence: 77%

Genetics and Inheritance of Nontarget-Site Resistances to Atrazine and Mesotrione in a Waterhemp (Amaranthus tuberculatus) Population from Illinois

et al. 2015

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“…Although there are many reports of differential response to PSI inhibitors in populations of Lolium spp. (Faulkner, 1974;Harvey et al, 1978), the first field-selected case of PSI resistance was not identified until 2002 (Yu et al, 2004).…”

Section: Resistance To Photosystem I Electron Divertersmentioning

confidence: 99%

Non-target-Site Resistance in Lolium spp. Globally: A Review

et al. 2021

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The Lolium genus encompasses many species that colonize a variety of disturbed and non-disturbed environments. Lolium perenne L. spp. perenne, L. perenne L. spp. multiflorum, and L. rigidum are of particular interest to weed scientists because of their ability to thrive in agricultural and non-agricultural areas. Herbicides are the main tool to control these weeds; however, Lolium spp. populations have evolved multiple- and cross-resistance to at least 14 herbicide mechanisms of action in more than 21 countries, with reports of multiple herbicide resistance to at least seven mechanisms of action in a single population. In this review, we summarize what is currently known about non-target-site resistance in Lolium spp. to acetyl CoA carboxylase, acetohydroxyacid synthase, microtubule assembly, photosystem II, 5-enolpyruvylshikimate-3-phosphate synthase, glutamine synthetase, very-long chain fatty acids, and photosystem I inhibitors. We suggest research topics that need to be addressed, as well as strategies to further our knowledge and uncover the mechanisms of non-target-site resistance in Lolium spp.

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“…The existence of differences between cultivars suggests that tolerance is heritable and could be increased by selection; this suggestion has recently been confirmed empirically (J. S. Faulkner, unpublished). It is also known that there is heritable variation in the response of perennial ryegrass genotypes to the herbicide paraquat (Faulkner. 1974).…”

Section: Conclusi(hismentioning

confidence: 99%

The effect of dalapon on thirty‐five cultivars of Lolium perenne

Faulkner¹

1974

Weed Research

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Resum^: Zusammenfas.'iun); Sown field plots of thirty-five, mostly late-ma luring, cultivars of perennial rycgrass (Loliiim perenne L.) were sprayed with three concentrations of datapon under five management ireatmenrs in a factorial arrangement.Dalapon had a greater effect (a) on 47-day old Ihan on older plots and (b) if applied on 47-day plots in August raiher ihan June. Cuuing 89-day old plots a week before spraying had little effect on susceptibility.The most tolerant cultivar, Barenza Pasture, yielded on average more than twice as much herbage as the most susceptible cultivars in the 12 weeks after spraying. Five ofthe six tetraptoids tested were amotig Ihe most tolerant cultivars. Certain inherently low-yielding cultivars. noiably Stadion, were judged more tolerant when their yield after spraying was considered in relation lo their yield when unsprayed. The relative tolerances of the cultivars were independetit of the dalapon concentration or management treatment.The practical implications of these results for maintaining leys of perennial ryegrass are discussed. £^el du dalapon siir irent-cinq culiivars de Lolium perenneDes parcelles, dans un essai au champ, ensemenctes avec 35 cuttivars de Lolium perenne ont He traitdes avec trois concentrations de dalapon selon cinq modes diff^rents, suivani un dispositif factoriel. Le dalapon a manifest^ un effet plus marqu6: (a) sur des parcelles agtes de 47 jours que sur des parcclles plus dg6es. (b) s'il a 6te applique sur des pajcelles de 47 jours en Aout plut6t qu'en Juin. La fauchaison de parcelles Sgccs de 89 jours une semaine avant le traitement n'a eu qu'un faible elTet sur la sensibility. Le cullivar le plus resistant. 'Barenza Pasture', a produit en moyenne une ricolte plus de deu.t fois superieure i!i cellc des cultivars les plus sensibies. 12 semaines apres le traitement. Cinq des six tdtraploicles essay^s fureni parmi Ics cuttivars Ics plus risistants. Certains des cultivars k faible rendemcnt, notamment Stadion. ont 6te jug6s plus risislants lorsquc leur rendement apres traitement a Hi compart au rendemcnt sans traitement. La resistance relative des cultivars a ct6 indcpendante de la concentration de dalapon ou du mode de traitement. Les consequences pratiques de ces r^sultats pour I'entretien des prairies de Loiium perenne sont discuties. Die Wirkiing ion Dalapon aiif 35 Sorien ion Lolium perenne Gesate Freilandparzellcn mit 35. meist spiitreifenden Sorten von Lolium perenm-, wurden nach funf Verfahren in einer faktoriellen Versuchsanlage bewirtschaftet und mit drei Dalaponkonzentrationen gespritzt. Die Wirkung von Dalapon war bei 47 Tage alien Parzellen grosser als bei den ^Iteren (a) und bei Behandlung der 47 Tage alten Parzellen im August bcsser als bei Behandlungen im Juni (b). Schneiden von 89 Tage alten Parrellen eine Woche vor der Spritzung. beeinflusste nur geringPOgig die Empfindiichkeit. In den 12 Wochen nach der Spriizung brachte die tolcrantcste Sorte. Barenza Pasture, verglichen mit emplindtichen Sorten, im Durchschnitt mehr als das Doppdtc ...

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Heritability of paraquat tolerance in Lolium perenne L.

Cited by 17 publications

References 9 publications

Genetics and Inheritance of Nontarget-Site Resistances to Atrazine and Mesotrione in a Waterhemp (Amaranthus tuberculatus) Population from Illinois

Genetics and Inheritance of Nontarget-Site Resistances to Atrazine and Mesotrione in a Waterhemp (Amaranthus tuberculatus) Population from Illinois

Non-target-Site Resistance in Lolium spp. Globally: A Review

The effect of dalapon on thirty‐five cultivars of Lolium perenne

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