Inheritance of Sawfly Reaction and Stem Solidness in Spring Wheat Crosses: Stem Solidness

McKenzie, Hugh

doi:10.4141/cjps65-111

Cited by 11 publications

(11 citation statements)

References 4 publications

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“…The use of solid-stem, sawfly-resistant wheat varieties has long been the most effective management tool against Cephus cinctus Norton in North America. While stem solidness is genetically controlled (McKenzie, 1964), environmental and management practices in North America can affect its expression in the field (Luginbill & McNeal, 1954;McNeal et al, 1959;O'Keefe et al, 1960;DePauw & Read, 1982).…”

Section: Introductionmentioning

confidence: 99%

Plant density and wheat stem sawfly (Hymenoptera: Cephidae) resistance in Syrian wheats

Miller

Masri

Jundi

1993

Bull. Entomol. Res.

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Bread and durum wheat varieties varying in wheat stem sawfly resistance were sown at different densities in northern Syria for two seasons to examine the effect of density on plant characteristics related to infestations of the wheat stem sawflies Cephus pygmeus (Linnaeus) and Trachelus spp. Plants sown at low densities had a longer interval between developmental stages and had higher stem solidity than those sown at high densities. Stem solidness was negatively correlated with the percentage of sawfly-infested stems. Plant height and grain yield were neither strongly nor consistently correlated with wheat stem sawfly infestation but were influenced by variety and density. These results differ from those of previous studies in North America where widely spaced plants suffered higher infestations than did closely spaced plants. Results of our study suggest that stand density should be considered when recommending wheat stem sawfly-resistant wheats to farmers in west Asia and North Africa and when designing screening trials for wheat stem sawfly resistance in the field.

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Section: Introductionmentioning

confidence: 99%

Plant density and wheat stem sawfly (Hymenoptera: Cephidae) resistance in Syrian wheats

Miller

Masri

Jundi

1993

Bull. Entomol. Res.

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“…Additionally, parasitoids that kill WSS larvae in the stem reduce WSS stem cutting in susceptible cultivars (Morrill, 1997). High heritability of the solid stem trait and the high correlation between degree of stem solidness and resistance to stem cutting has compelled breeders to use solid stems as a proxy for resistance (McKenzie, 1965).…”

mentioning

confidence: 99%

“…Early genetic analyses suggested the degree of stem solidness was controlled by a single major gene and several minor genes (McKenzie, 1965). Cook et al (2004) reported a single quantitative trait locus (QTL) on chromosome 3BL , named Qss.msub‐3BL , that controlled 76% of the total variation for stem solidness in a recombinant inbred line (RIL) population derived from a cross between solid and hollow stem hexaploid parents (Cook et al, 2004).…”

mentioning

confidence: 99%

Comparison of Three Alleles at a Major Solid Stem QTL for Wheat Stem Sawfly Resistance and Agronomic Performance in Hexaploid Wheat

et al. 2019

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Solid stems provide resistance to the wheat stem sawfly (WSS, Cephus cinctus Nort.) in wheat (Triticum aestivum L.). A major quantitative trait locus, designated Qss.msub‐3BL, controls most of the variation for stem solidness. Two alleles that differ for temporal expression of stem solidness have been identified. An allele derived from the cultivar ‘Rescue’, designated Qss.msub‐3BL.b, results in solid stems throughout stem development. An allele derived from the cultivar ‘Conan’, designated Qss.msub‐3BL.c, causes high stem solidness early in plant development, but solidness declines as the plant matures. The objective of this study was to develop near‐isogenic lines (NILs) derived from marker‐assisted backcrossing to compare the impact of Qss.msub‐3BL alleles in different genetic backgrounds on stem solidness, WSS resistance, and agronomic traits. The Conan‐derived allele Qss.msub‐3BL.c resulted in lower WSS infestation than the Rescue‐derived allele Qss.msub‐3BL.b in two genetic backgrounds. Both alleles showed a high level of early stem solidness, though this declined as the stem matured for NIL with the Conan‐derived allele. The Conan‐derived allele Qss.msub‐3BL.c resulted in lower WSS infestation and stem cutting than the allele for hollow stems in two genetic backgrounds. Based on yield trials grown over 2 yr, there were no significant differences in grain yield between the NIL pairs. Our results indicate the Conan‐derived allele at Qss.msub‐3BL results in lower infestation of WSS and does not significantly affect agronomic performance, thus providing a novel source of resistance for the development of WSS‐resistant cultivars.

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“…Cutting by wheat stem sawfly (% incidence) was recorded in those environments where significant infestation by the pest was documented. Stem solidness was determined in selected environments using five stems per plot, sampled randomly near crop maturity using a method like that reported by McKenzie (1965). Five internodes per stem were cross‐sectionally cut and visually rated on a semi‐quantitative scale of 1–5, where 1 designates a hollow (normal) stem and 5 designates a solid stem.…”

Section: Methodsmentioning

confidence: 99%

Registration of ‘StandClear CLP’ hard red winter wheat

Berg

Kephart²,

Lamb

et al. 2020

J of Plant Registrations

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'StandClear CLP' (Reg. no. CV-1162, PI 693236) hard red winter (HRW) wheat (Triticum aestivum L.) was developed and released by the Montana Agricultural Experiment Station and exclusively licensed to Loveland Products, Inc., in 2020. StandClear CLP is a two-gene Clearfield, semisolid-stem wheat intended for use with the selective imidazolinone (IMI) herbicide imazamox. StandClear CLP resulted from a cross of MTS0531 to an IMI herbicide tolerant F 1 plant from a population segregating for two acetohydroxyacid synthase (AHAS) genes [TaA-HAS1D and TaAHAS1B]. Original herbicide tolerance donors were IMI 'Fidel' (TX12588*4/FS2, BASF) for allele TaAHAS1D via descended experimental lines MTCL0309 and MTCL0510, and proprietary hard red spring wheat line CDC Teal 11A (BASF Corporation) for allele TaAHAS1B. StandClear CLP was selected as a F 6:7 headrow in 2014 following multiple cycles of phenotypic mass selection for IMI herbicide tolerance and stem solidness. StandClear CLP was tested under the experimental number MTCS1601 from 2016 to 2019 in Montana for field performance, herbicide tolerance, and end-use quality. StandClear CLP is a high-yielding, Clearfield HRW wheat cultivar with intermediate stem solidness, moderate host plant resistance to wheat stem sawfly, and acceptable milling and baking quality.

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Inheritance of Sawfly Reaction and Stem Solidness in Spring Wheat Crosses: Stem Solidness

Cited by 11 publications

References 4 publications

Plant density and wheat stem sawfly (Hymenoptera: Cephidae) resistance in Syrian wheats

Plant density and wheat stem sawfly (Hymenoptera: Cephidae) resistance in Syrian wheats

Comparison of Three Alleles at a Major Solid Stem QTL for Wheat Stem Sawfly Resistance and Agronomic Performance in Hexaploid Wheat

Registration of ‘StandClear CLP’ hard red winter wheat

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