Biology and Management Strategies of Major Insect-Pests of Wheat

Jasrotia, Poonam; Singh, Beant; Nagpal, Mohini

doi:10.1007/978-981-16-4134-3_9

Cited by 5 publications

(4 citation statements)

References 93 publications

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“…The aphid damage on wheat initiates from seedling stage onwards at during October-November, however it is difficult to detect because of their small size and green coloration. The peak population of aphid was usually reported during February to March [ 10 , 11 ]. Under severe incidence of aphids, wheat can suffer extensive yield losses, ranging from 20 per cent to 30 per cent [ 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

“…Under severe incidence of aphids, wheat can suffer extensive yield losses, ranging from 20 per cent to 30 per cent [ 12 , 13 ]. Early infestations at ear head emergence stage can result in yield reductions of up to 14 per cent, with the degree of yield loss decreasing as infestations occur later in the crop growth cycle [ 11 , 14 ].…”

Section: Introductionmentioning

confidence: 99%

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Unravelling the novel genetic diversity and marker-trait associations of corn leaf aphid resistance in wheat using microsatellite markers

Yadav,

Jasrotia,

Jaglan

et al. 2024

PLoS ONE

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The study was conducted to identify novel simple sequence repeat (SSR) markers associated with resistance to corn aphid (CLA), Rhopalosiphum maidis L. in 48 selected bread wheat (Triticum aestivum L.) and wild wheat (Aegilops spp. & T. dicoccoides) genotypes during two consecutive cropping seasons (2018–19 and 2019–20). A total of 51 polymorphic markers containing 143 alleles were used for the analysis. The frequency of the major allele ranged from 0.552 (Xgwm113) to 0.938 (Xcfd45, Xgwm194 and Xgwm526), with a mean of 0.731. Gene diversity ranged from 0.116 (Xgwm526) to 0.489 (Xgwm113), with a mean of 0.354. The polymorphic information content (PIC) value for the SSR markers ranged from 0.107 (Xgwm526) to 0.370 (Xgwm113) with a mean of 0.282. The results of the STRUCTURE analysis revealed the presence of four main subgroups in the populations. Analysis of molecular variance (AMOVA) showed that the between-group difference was around 37 per cent of the total variation contributed to the diversity by the whole germplasm, while 63 per cent of the variation was attributed between individuals within the group. A general linear model (GLM) was used to identify marker-trait associations, which detected a total of 23 and 27 significant new marker-trait associations (MTAs) at the p < 0.01 significance level during the 2018–19 and 2019–20 crop seasons, respectively. The findings of this study have important implications for the identification of molecular markers associated with CLA resistance. These markers can increase the accuracy and efficiency of aphid-resistant germplasm selection, ultimately facilitating the transfer of resistance traits to desirable wheat genotypes.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Unravelling the novel genetic diversity and marker-trait associations of corn leaf aphid resistance in wheat using microsatellite markers

Yadav,

Jasrotia,

Jaglan

et al. 2024

PLoS ONE

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“…The aphid damage on wheat initiates from seedling stage onwards at during October-November, however it is difficult to detect because of their small size and green coloration. The peak population of aphid was usually reported during February to March (Katare et al 2021;Jasrotia et al 2022). Under severe incidence of aphids, wheat can suffer extensive yield losses, ranging from 20% to 30% (Katare et al 2018;.…”

Section: Introductionmentioning

confidence: 99%

“…Under severe incidence of aphids, wheat can suffer extensive yield losses, ranging from 20% to 30% (Katare et al 2018;. Early infestations at ear head emergence stage can result in yield reductions of up to 14%, with the degree of yield loss decreasing as infestations occur later in the crop growth cycle (Chapin et al 2001;Jasrotia et al 2022).…”

Section: Introductionmentioning

confidence: 99%

Unravelling the novel genetic diversity and marker-trait associations of corn leaf aphid resistance in wheat using microsatellite markers

Yadav

Jasrotia

Jaglan

et al. 2023

Preprint

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The study was conducted to identify novel simple sequence repeat (SSR) markers associated with resistance to corn aphid (CLA), Rhopalosiphum maidis L. in 48 selected bread wheat (Triticum aestivum L.) and wild wheat (Aegilops spp. & T. dicoccoides) genotypes during two consecutive cropping seasons (2018-19 and 2019-20). A total of 51 polymorphic markers containing 143 alleles were used for the analysis. The frequency of the major allele ranged from 0.552 (Xgwm113) to 0.938 (Xcfd45, Xgwm194 and Xgwm526), with a mean of 0.731. Gene diversity ranged from 0.116 (Xgwm526) to 0.489 (Xgwm113), with a mean of 0.354. The polymorphic information content (PIC) value for the SSR markers ranged from 0.107 (Xgwm526) to 0.370 (Xgwm113) with a mean of 0.282. The results of the STRUCTURE analysis revealed the presence of four main subgroups in the populations. Analysis of molecular variance (AMOVA) showed that the between-group difference was around 37% of the total variation contributed to the diversity by the whole germplasm, while 63% of the variation was attributed between individuals within the group. A general linear model (GLM) was used to identify marker-trait associations, which detected a total of 23 and 27 significant new marker-trait associations (MTAs) at the p < 0.01 significance level during the 2018-19 and 2019-20 crop seasons, respectively. The findings of this study have important implications for the identification of molecular markers associated with CLA resistance. These markers can increase the accuracy and efficiency of aphid-resistant germplasm selection, ultimately facilitating the transfer of resistance traits to desirable wheat genotypes.

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Design of Integrated Dual Spiral Spring and Rotary Hydraulic Damper System for Torsional Vibration Damping in Pesticide Sprayer Gearbox

Patil,

Sulakhe,

Wankhede

2024

J. Inst. Eng. India Ser. C

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Biology and Management Strategies of Major Insect-Pests of Wheat

Cited by 5 publications

References 93 publications

Unravelling the novel genetic diversity and marker-trait associations of corn leaf aphid resistance in wheat using microsatellite markers

Unravelling the novel genetic diversity and marker-trait associations of corn leaf aphid resistance in wheat using microsatellite markers

Unravelling the novel genetic diversity and marker-trait associations of corn leaf aphid resistance in wheat using microsatellite markers

Design of Integrated Dual Spiral Spring and Rotary Hydraulic Damper System for Torsional Vibration Damping in Pesticide Sprayer Gearbox

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