Results 71 to 80 of about 13,196 (241)

Sex‐Specific doublesex Regulation Targeting the Color‐Patterning Gene h Underlies the Evolution of Wing Sexual Dimorphism in the Harlequin Ladybug Harmonia axyridis

Evolution &Development, Volume 28, Issue 1, March 2026.
doublesex regulates sexual dimorphism in elytral color patterns of Harmonia axyridis by downregulating the color patterning gene h in males. This regulatory link diverged in derived color morphs, coinciding with the loss of sex‐specific elytral color patterns.
Soichi Yeki, Kagayaki Kato, Shinichi Morita, Kenji Shimomura, Teruyuki Niimi, Norihide Hinomoto, Takaaki Daimon, Toshiya Ando   +7 more
wiley   +1 more source

Gene knockdown by RNAi in the pea aphid Acyrthosiphon pisum [PDF]

BMC Biotechnology, 2007
RNA interference (RNAi) is a powerful method to inhibit gene expression in a sequence specific manner.Here, we described the development of RNAi by micro-injection of double-stranded RNA (dsRNA) in the pea aphid Acyrthosiphon pisum. Injection of dsRNA into whole aphid body induced the silencing of two marker genes with different expression patterns ...
Jaubert, Stéphanie, Le Trionnaire, Gaël, Bonhomme, Joel, Christophides, G.K., Rispe, Claude, Tagu, Denis   +5 more
openaire   +5 more sources

The Influence of Lead on Generation of Signalling Molecules and Accumulation of Flavonoids in Pea Seedlings in Response to Pea Aphid Infestation

Molecules, 2017
The aim of this study was to investigate the effect of an abiotic factor, i.e., lead at various concentrations (low causing a hormesis effect and causing high toxicity effects), on the generation of signalling molecules in pea (Pisum sativum L.
Agnieszka Woźniak, Kinga Drzewiecka, Jacek Kęsy, Łukasz Marczak, Dorota Narożna, Marcin Grobela, Rafał Motała, Jan Bocianowski, Iwona Morkunas   +8 more
doaj   +1 more source

Arthropod diversity in peas with normal or reduced waxy bloom [PDF]

, 2004
Crop traits can alter economically important interactions between plants, pests, and biological control agents. For example, a reduced waxy bloom on the surface of pea plants alters interactions between pea aphids and their natural enemies. In this study,
Biggam, Russell C., Chang, Gary C., Eigenbrode, Sanford D., Rutledge, Claire E.   +3 more
core   +2 more sources

Effects of temperature and humidity on the presence and prevalence of a common fungal parasite on an invasive ladybird

Ecological Entomology, Volume 51, Issue 1, Page 86-97, February 2026.
We investigated how temperature and relative humidity influence the parasitic fungus Hesperomyces harmoniae on the invasive ladybird Harmonia axyridis under controlled laboratory conditions. Abiotic factors significantly affect parasitism: High relative humidity increased parasite prevalence, development rate, and load, while both low and high ...
Michiel D. de Groot, Brianna Santamaria, Tim Adriaens, Ted E. Cottrell, Dirk Maes, Samaneh Sakaki, Annemieke Verbeken, Oldřich Nedvěd, Danny Haelewaters   +8 more
wiley   +1 more source

Expansion of the miRNA Pathway in the Hemipteran Insect Acyrthosiphon pisum [PDF]

Molecular Biology and Evolution, 2010
The pathways that allow short noncoding RNAs such as the microRNAs (miRNAs) to mediate gene regulation and control critical cellular and developmental processes involve a limited number of key protein components. These proteins are the Dicer-like RNases, double-stranded RNA (dsRNA)-binding proteins, and the Argonaute (AGO) proteins that process stem ...
Jaubert, Stéphanie, Rispe, Claude, Tanguy, Sylvie, Gordon, Karl, Walsh, Thomas, Edwards, Owain, Tagu, Denis   +6 more
openaire   +3 more sources

Aphids associated with shrubs, herbaceous plants and crops in the Maltese Archipelago (Hemiptera, Aphidoidea) [PDF]

, 2011
A survey of the aphids associated with Maltese shrubs, herbaceous plants and crops was carried out. Sixty six aphid species were recorded from more than 90 species of host plants.
Azzopardi, Erika, Cuesta Segura, David, Espadaler, Xavier, Mangion, Marija, Mifsud, David, Perez Hidalgo, Nicolas, Watson, Gillian W.   +6 more
core  

Defensive insect symbiont leads to cascading extinctions and community collapse [PDF]

, 2016
This is the final version of the article. Available from Wiley via the DOI in this record.Animals often engage in mutualistic associations with microorganisms that protect them from predation, parasitism or pathogen infection.
Dicke, M, Frago, E, Godfray, HCJ, Gols, R, Kehoe, R, McLean, A, Sanders, D, van Veen, FF   +7 more
core   +1 more source

Dual Disruption of the Immune Cytokine Spätzle Facilitates Fungal Infection of Diverse Insect Hosts

Advanced Science, Volume 13, Issue 1, 5 January 2026.
The Toll pathway is essential for insect defense against fungal pathogens. This works reports that fungal parasites employ two divergent virulent effectors to target the Toll receptor ligand Spätzle: a metalloprotease degrading it and a hairpin‐like effector hijacking it to block signal transduction. This dual strategy enables the fungus to kill a wide
Shuangxiu Song, Shiqin Li, Yujuan Luo, Dongxiang Wei, Junmei Shang, Hongyun Wu, Gangqi Fang, Chengshu Wang   +7 more
wiley   +1 more source

Abundancia y riqueza específica de pulgones (Hemiptera: Aphididae) y sus parasitoides en diferentes genotipos y estados fenologicos del garbanzo Species richness and abundance of aphids (Hemiptera: Aphididae) and their parasitoids in different genotypes and at different growth stages of chickpea

Agriscientia, 2011
Los áfidos son insectos perjudiciales tanto por la succión de savia como por la transmisión de enfermedades. Los objetivos de este trabajo fueron conocer las especies de áfidos y sus parasitoides presentes en diferentes genotipos de garbanzo, calcular la
V. E. Mazzuferi, A. Maidana, P. Fichetti, L. G. Hansen, D. S. Avalos   +4 more
doaj