Evolution of Soybean Aphid Biotypes: Understanding and Managing Virulence to Host-Plant Resistance

Michel, Andrew P.; Mittapalli, Omprakash; Mian, M. A. Rouf

doi:10.5772/14407

Cited by 6 publications

(2 citation statements)

References 54 publications

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“…Pest damage not only decreases the market quality of soybeans but also significantly lowers the yield [ 3 ]. Among the diverse pests, damage caused by lepidopterans stands out as particularly severe [ 4 , 5 , 6 , 7 , 8 ]. It has been reported that approximately 44% of soybean yield reduction in the southeast of the United States is attributed to lepidopteran pests [ 9 , 10 ].…”

Section: Introductionmentioning

confidence: 99%

Overexpression of cry1c* Enhances Resistance against to Soybean Pod Borer (Leguminivora glycinivorella) in Soybean

Fang,

Cao,

et al. 2024

Plants

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Soybean [Glycine max (L.) Merr.], an essential staple food and oil crop worldwide, boasts abundant vegetable proteins and fats beneficial for both human and animal consumption. However, the soybean pod borer (Leguminivora glycinivorella) (SPB) stands as the most destructive soybean insect pest in northeast China and other northeastern Asian regions, leading to significant annual losses in soybean yield and economic burden. Therefore, this study aims to investigate the introduction of a previously tested codon-optimized cry1c gene, cry1c*, into the soybean genome and assess its effect on the SPB infestation by generating and characterizing stable transgenic soybeans overexpressing cry1c*. The transgenic soybean lines that constitutively overexpressed cry1c* exhibited a significant reduction in the percentage of damaged seeds, reaching as low as 5% in plants under field conditions. Additionally, feeding transgenic leaves to the larvae of S. exigua, S. litura, and M. separta resulted in inhibited larval growth, decreased larval body weight, and lower survival rates compared to larvae fed on wild-type leaves. These findings showed that the transgenic lines maintained their resistance to SPB and other lepidopteran pests, especially the transgenic line KC1. Southern blotting and genome-wide resequencing analysis revealed that T-DNA integration occurred as a single copy between loci 50,868,122 and 50,868,123 of chromosome 10 in the transgenic line KC1. Therefore, the transgenic line KC1, overexpressing high levels of cry1c* in leaves and seeds, holds strong potential for commercial use in the integrated management of SPB and other lepidopteran pests.

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Section: Introductionmentioning

confidence: 99%

Overexpression of cry1c* Enhances Resistance against to Soybean Pod Borer (Leguminivora glycinivorella) in Soybean

Fang,

Cao,

et al. 2024

Plants

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“…The use of resistant cultivars is an efficient, environmentally friendly, and long term effective tactic that is synergistic with other IPM tactics (Klingler et al, 2001;Smith, 2005;Shannag & Ja'far, 2007). However, time consuming bioassays are significant obstructions in plant breeding programs that are intended to provide resistant cultivars (Smith, 2005;Michel et al, 2011). Therefore, utilizing an efficient technique to evaluate plant cultivars resistance against insects, such as Electrical Penetration Graph (EPG) technique, is crucial (Schoonhoven et al, 1998).…”

Section: Introductionmentioning

confidence: 99%

Electrical Penetration Graph monitored feeding behavior of cowpea aphid, Aphis craccivora Koch. (Hemiptera:Aphididae), on faba bean, Vicia faba L. (Fabaceae), cultivars

Soffan

Aldawood

2016

Turkish Journal of Entomology

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SummaryFeeding behavior of cowpea aphid, Aphis craccivora Koch. (Hemiptera: Aphididae), was evaluated on five faba bean, Vicia faba L. (Fabaceae), cultivars, including the resistant cultivar Gazira2, by using the Electrical Penetration Graph (EPG) technique. Experiments were conducted on whole plants (WP) and detached leaves (DL). Fifteen parameters of EPG recording were selected for statistical analysis. Two-way factorial ANOVA showed that the EPG parameter values in WP and DL were significantly different, while the cultivars difference occurred mostly in the WP tissue, as indicated through one-way ANOVA Kruskal-Wallis analysis. Cowpea aphid feeding behavior on WP Gazira2 resistant cultivar had the longest duration of stylet derailment (waveform F) and total probing, but lowest in total duration of pathway (waveform C), xylem ingestion (waveform G),and number of probes. Speculatively, longest duration of waveform F, which had a relation with the mechanical disturbance during feeding, probably is one of the possible resistant factors in Gazira2 cultivar, however this remains intriguing and needs further study.

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Molecular Adaptations of Aphid Biotypes in Overcoming Host-Plant Resistance

Bansal

Michel

2015

Short Views on Insect Genomics and Proteomics

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Evolution of Soybean Aphid Biotypes: Understanding and Managing Virulence to Host-Plant Resistance

Cited by 6 publications

References 54 publications

Overexpression of cry1c* Enhances Resistance against to Soybean Pod Borer (Leguminivora glycinivorella) in Soybean

Overexpression of cry1c* Enhances Resistance against to Soybean Pod Borer (Leguminivora glycinivorella) in Soybean

Electrical Penetration Graph monitored feeding behavior of cowpea aphid, Aphis craccivora Koch. (Hemiptera:Aphididae), on faba bean, Vicia faba L. (Fabaceae), cultivars

Molecular Adaptations of Aphid Biotypes in Overcoming Host-Plant Resistance

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