Ecology and Management of the Soybean Aphid in North America

Ragsdale, David W.; Landis, Douglas A.; Brodeur, Jacques; Heimpel, George E.; Desneux, Nicolas

doi:10.1146/annurev-ento-120709-144755

Cited by 474 publications

(407 citation statements)

References 165 publications

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“…The mean yield was significantly high at Ilonga (728kg/ha) and the lowest was recorded at Kibaha. High yield at Ilonga could be attributed to relatively adequate rainfall during the growing month of March and 2°C lower average temperatures which mimics closer to the highland agro-ecosystem where there is a cooler environment suitable for soybeans as also reported by other authors (Liu et al, 2008;Ragsdale et al, 2011). Number of pods per plant, pod length, number of seed per plant, plant height and 100 seed weight were significantly high at Ilonga compared to other sites.…”

Section: Effects Of Environmentsupporting

confidence: 65%

“…The poor performance at Mlingano and Kibaha could be associated with their ecological condition as they are located more at lower altitude with relatively higher temperatures than Ilonga. Adaptability of soybean to high altitude location has been reported by many authors (Liu et al, 2005;Liu et al, 2008;Ragsdale et al, 2011). However, of the all the genotypes tested, TGX 1954-1F combined well with all the three locations (Table 5) implying that it can well be used as a potential variety for all the three locations.…”

Section: Combined Effects Of Genotype and Environmentsupporting

confidence: 52%

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Effects of genotype on yield and yield component of soybean (Glycine max (L) Merrill)

Liberatus¹,

Musa²,

Richard³

2017

Afr. J. Agric. Res.

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In 2013, the multi-location trial was implemented to evaluate the new soybean genotypes for their agronomic performance against the local check. The experiment was conducted in three locations namely Ilonga, Kibaha, and Mlingano in each location a triplicated trial involving six genotypes of soybeans were implemented. The effects of genotype, location and genotype x environment interaction under combined analysis on agronomic yield, and soybean yield were found significant at P<0.05. The highest mean yield was found from TGX 1954-1Fand TGX 1908-8F in all locations. Correlations coefficient for seed yield revealed a positive and significant association with all agronomic yield except 100 seed weight in all locations. The phenotypic coefficient of variation and genotypic coefficient of variation estimates were significantly high for pods per plants (49.49/27.04), while crude protein had the lowest values (1.45/0.98). The finding also revealed that the differences between phenotypic coefficient of variation (PCV) and genetic coefficient of variation (GCV) were significantly lower for crude protein (0.45), followed by pod length (1.45) and 100 seed weight (2.6). The result suggests that the environment had less effect on the expression of these traits. Therefore, selection based on these traits might increase soybeans performance in all locations. The findings have demonstrated the stability of traits in different locations which is a useful information in soybean breeding programs. TGX 194-1F and TGX 1908-8F were genotypes with high crude protein content, and revealed stable performance across the three environments. TGX 1987-10F, TGX 1987-20F and TGX 1910-14F had better performance compared to Bossier.

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Section: Effects Of Environmentsupporting

confidence: 65%

Section: Combined Effects Of Genotype and Environmentsupporting

confidence: 52%

Effects of genotype on yield and yield component of soybean (Glycine max (L) Merrill)

Liberatus¹,

Musa²,

Richard³

2017

Afr. J. Agric. Res.

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“…Since the first introduction of the soybean aphid, Aphis glycines Matsumura, in the early 2000s, it has emerged as a major pest of soybeans. Aphids have now spread to 30 states and several south Canadian provinces (Hartman 2001;Alleman 2002;Venette and Ragsdale 2004;Beckendorf et al 2008;NAPIS 2011) and have caused considerable economic damage to soybean growers (NAPIS 2011;Ragsdale et al 2011;McCarville et al 2011;Ragsdale et al 2007;Venette and Ragsdale 2004). Different strategies have been developed to manage this pest including chemical, biological, and cultural control methods (Wang and Ba 1998;Wang et al 2000;Ostlie 2002;Hill et al 2004;Wu et al 2004;Rutledge and O'Neil 2006;Brosius et al 2007).…”

Section: Original Papermentioning

confidence: 99%

Transcriptional responses of tolerant and susceptible soybeans to soybean aphid (Aphis glycines Matsumura) herbivory

Prochaska

Donze-Reiner

Marchi-Werle

et al. 2015

Arthropod-Plant Interactions

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Prochaska, Travis J.; Donze-Reiner, Teresa; Marchi-Werle, L.; Palmer, N. A.; Hunt, Thomas E.; Sarath, Gautam; and Heng-Moss, Tiffany, "Transcriptional responses of tolerant and susceptible soybeans to soybean aphid (Aphis glycines Matsumura) herbivory" (2015). Abstract The soybean aphid, Aphis glycines Matsumura, was introduced in 2000 to North America and has become one of the most significant pests to soybean, Glycine max (L.) Merrill, production. Possible solutions to this problem are the use of resistant plants and the understanding of the genes involved in plant resistance. In this study, we sought to better understand the genes involved in the tolerance response of soybean plants to the soybean aphid, utilizing tolerant (KS4202) and susceptible (K-03-4686) plants. Studies were conducted under greenhouse conditions. Leaf samples of both tolerant and susceptible plants were collected at day 5 and day 15 after infestation and analyzed by sequencing-by-synthesis on an Illumina GA II X instrument. In the tolerant genotype, 3 and 36 genes were found to be differentially expressed in the infested plants compared to the control treatments at day 5 and day 15, respectively. A similar comparison in the susceptible genotype revealed 0 and 11 genes to be differentially expressed at day 5 and day 15, respectively. Predominately, genes related to plant defense, such as WRKY transcription factors, peroxidases, and cytochrome p450s, were upregulated in the tolerant genotype 15 days post-infestation by aphids. In contrast, none of these genes were similarly up-regulated in the susceptible plants, suggesting that consistent elevation of defense responses is important to plant tolerance. However, significant genotypic differences in global gene expression were also found when transcriptomes from control uninfested plants were compared at both day 5 and 15. qPCR validation of select genes confirmed our RNA-seq data. These comparisons indicate that potentially broader regulation of transcriptomes also contributes to the tolerance response and provides data that the tolerant genotype (KS4202) could be useful in soybean breeding programs trying to minimize production losses accruing from soybean aphid feeding.

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“…The latter is an exotic species that has been found in over 21 states in the USA and three provinces in Canada (Ragsdale et al 2011), and it has been associated with the transmission of PVY in the potato crop (Davis and Radcliffe 2008;Davis et al 2005). Two acquisition regimes, one with a 5-min continuous probe and the other with the 1-h acquisition access on leaves infected with PVY O or PVY N:O , were carried out prior to test tube plantlet inoculation.…”

Section: [Utilisation De Vitroplants Pour L'évaluation De La Transmismentioning

confidence: 99%

The use of test tube plantlets for the assessment of Potato virus Y transmission by Myzus persicae and Aphis glycines

Nie

Giguère

Pelletier

2012

phyto

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Test tube plantlets were used to assess the transmission efficiency of Potato virus Y (PVY) from and to potato plants by the potato colonizing species green peach aphid (Myzus persicae) and the non-potato colonizing species soybean aphid (Aphis glycines). Similar levels of transmission of PVY by M. persicae were observed in the test tube plantlets and potted plants, demonstrating the reliability of this test for PVY transmission efficiency assay for aphids. The assay was then used to assess the transmission of PVYO and PVYN:O by M. persicae and A. glycines with two virus acquisition regimes, one with 5-min continuous probing and the other with 1-h acquisition access. The M. persicae mediated-transmission rate was 24.1% and 51.7% for PVYO and PVYN:O, respectively, under the 5-min acquisition regime; under the same acquisition regime, A. glycines led to 0.0% and 1.7% infection rates for PVYO and PVYN:O, respectively. Under the 1-h acquisition regime, no infection was observed except for PVYN:O by M. persicae, which exhibited an infection rate of 3.4%.Des vitroplants ont été utilisés pour évaluer le taux de transmission du virus Y de la pomme de terre (PVY) entre plants de pomme de terre par un puceron inféodé à la pomme de terre, le puceron vert du pêcher (Myzus persicae), et un puceron non-inféodé à la pomme de terre, le puceron du soya (Aphis glycines). Des taux similaires d’efficacité de transmission du PVY par M. persicae ont été observés lorsque des vitroplants ou des plantes en pot étaient utilisés, ce qui démontre la validité de l’utilisation de vitroplants pour l’évaluation du taux de transmission du PVY par les pucerons. La même approche a par la suite été utilisée pour mesurer le taux de transmission du PVYO et du PVYN:O par M. persicae et par A. glycines sous deux régimes d’acquisition, soit 5 min de sondage continu et 1 h d’accès. Le taux de transmission de M. persicae a été de 24,1 % et de 51,7 % pour PVYO et PVYN:O, respectivement, sous un régime d’acquisition de 5 min, et de 0,0 % et 1,7 % pour PVYO et PVYN:O, respectivement, avec A. glycines. Sous un régime d’acquisition d’une heure, aucune infection n’a été observée à l’exception de PVYN:O par M. persicae qui a présenté un taux d’infection de 3,4 %

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Ecology and Management of the Soybean Aphid in North America

Cited by 474 publications

References 165 publications

Effects of genotype on yield and yield component of soybean (Glycine max (L) Merrill)

Effects of genotype on yield and yield component of soybean (Glycine max (L) Merrill)

Transcriptional responses of tolerant and susceptible soybeans to soybean aphid (Aphis glycines Matsumura) herbivory

The use of test tube plantlets for the assessment of Potato virus Y transmission by Myzus persicae and Aphis glycines

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