Results 21 to 30 of about 5,934 (169)
Masculinization of the X Chromosome in the Pea Aphid
Evolutionary theory predicts that sexually antagonistic mutations accumulate differentially on the X chromosome and autosomes in species with an XY sex-determination system, with effects (masculinization or feminization of the X) depending on the dominance of mutations.
Jaquiéry, Julie +12 more
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A highly infective plant-associated bacterium influences reproductive rates in pea aphids [PDF]
Pea aphids, Acyrthosiphon pisum, have the potential to increase reproduction as a defence against pathogens, though how frequently this occurs or how infection with live pathogens influences this response is not well understood.
Tory A. Hendry +2 more
doaj +1 more source
Effects of Endosymbiont Disruption on the Nutritional Dynamics of the Pea Aphid Acyrthosiphon pisum
Pea aphid (Acyrthosiphon pisum) is a worldwide pest that feeds exclusively on the phloem sap of numerous host plants. It harbours a well-known primary endosymbiont Buchnera aphidicola that helps to overcome the nutritional deficiency of a plant-based ...
Ning Lv +4 more
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Pea Aphid Survival Assays on Arabidopsis thaliana
Aphids are phloem-feeding insects that successfully colonize specific host plant species. Aphid performance on a given plant is commonly measured by assessing fecundity of an aphid species that is adapted to the host.
David Prince +3 more
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Genetic Control of Contagious Asexuality in the Pea Aphid
Although evolutionary transitions from sexual to asexual reproduction are frequent in eukaryotes, the genetic bases of such shifts toward asexuality remain largely unknown. We addressed this issue in an aphid species where both sexual and obligate asexual lineages coexist in natural populations.
Jaquiéry, Julie +16 more
openaire +7 more sources
Associations between microbes and animals are ubiquitous and hosts may benefit from harbouring microbial communities through improved resource exploitation or resistance to environmental stress.
Jean-Pierre Gauthier +3 more
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Monoctonus paulensis is a solitary parasitoid of several species of aphids, including the pea aphid, Acyrthosiphon pisum. We evaluated host-instar selection by comparing the parasitoid's preference for the four nymphal instars of the pea aphid, presented
Amanda CHAU, Manfred MACKAUER
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Non-consumptive effects stabilize herbivore control over multiple generations.
Understanding the factors that influence predator-prey dynamics requires an investigation of oscillations in predator and prey population sizes over time. However, empirical studies are often performed over one or fewer predator generations.
Kathryn S Ingerslew, Deborah L Finke
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Ecological Studies on Aphid Species Infesting Different Leguminous Vegetable Plant Varieties with Regard to their Seasonal Abundance. [PDF]
The present work was conducted to survey and study the seasonal abundance of different aphid insects infesting some leguminous plants varieties (broad bean, pea, cowpea and bean plants) in Diarb–Nigm district, Sharkia Governorate, Egypt during 2014/15 ...
E. EL- Khyatt +3 more
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The pea aphid (Acyrthosiphon pisum), a phloem-sucking insect, has undergone a rapid radiation together with the domestication and anthropogenic range expansion of several of its legume host plants.
Carlos Sanchez-Arcos +4 more
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