Results 51 to 60 of about 12,021 (198)

Analysis of heterochromatic epigenetic markers in the holocentric chromosomes of the aphid Acyrthosiphon pisum [PDF]

, 2007
Monomethylated-K9 H3 histones (Me9H3) and heterochromatin protein 1 (HP1) are reported as heterochromatin markers in several eukaryotes possessing monocentric chromosomes.
BORSATTI, Federica, MANDRIOLI, Mauro
core   +1 more source

Russian wheat aphid: a model for genomic plasticity and a challenge to breeders

Insect Science, EarlyView.
Invasive foundress finds suitable habitat and reproduces through pathogenesis. Wingless females produce life offspring quickly, which leads to high population densities. High population densities result in competition, which may induce epigenetic changes and wing development for dispersal.
Astrid Jankielsohn, Vicky L. Tolmay, Marlon‐Schylor Luke le Roux, Lintle Mohase, Mpho S. Mafa, Vittorio F. Nicolis, Eduard Venter, Nicolaas Francois Visser Burger, Anna‐Maria Botha   +8 more
wiley   +1 more source

Characterization of the dynamic microbiome evolution across thrips species

Insect Science, EarlyView.
Comprehensive survey of the microbiome in thrips. The dominant bacterial genera found in thrips include intracellular ones, such as Wolbachia and Spiroplasma, and extracellular ones, including Serratia, Pantoea, and Acinetobacter. We isolated and sequenced high‐quality genomes of two dominant symbionts, Pantoea dispersa and Serratia marcescens.
Xiaodi Hu, Zhaohui Shi, Yangwei Gao, Hanze Zheng, Lin Lin, Jian‐Ping Chen, Yong Chen, Chuan‐Xi Zhang, Yiyuan Li   +8 more
wiley   +1 more source

A highly infective plant-associated bacterium influences reproductive rates in pea aphids [PDF]

Royal Society Open Science, 2016
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, Kelley J. Clark, David A. Baltrus   +2 more
doaj   +1 more source

Insects and Survival: A Review of Primary and Secondary Defense Strategies

Entomologia Experimentalis et Applicata, EarlyView.
Based on a review of three decades of literature, insect defense mechanisms are classified into primary (I) and secondary (II) mechanisms of behavioral, morphological, and chemical nature. These mechanisms have been recorded in 22 (I) and 20 (II) orders, respectively.
Lucas Fernandes Silva, Rodrigo Almeida Pinheiro, José Cola Zanuncio, Conceição Aparecida dos Santos   +3 more
wiley   +1 more source

Characterization of Non-LTR Retrotransposable TRAS Elements in the Aphids Acyrthosiphon pisum and Myzus persicae (Aphididae, Hemiptera) [PDF]

, 2013
A non-LTR TRAS retrotransposon (identified as TRASAp1) has been amplified in the pea aphid Acyrthosiphon pisum and its presence has been assessed also in the peach potato aphid Myzus persicae.
C., Serafini, Mandrioli, Mauro, Manicardi, Gian Carlo, V., Monti   +3 more
core   +1 more source

Do aphid endosymbiotic bacteria influence parasitoid searching behaviour through changes in aphid honeydew production?

Ecological Entomology, EarlyView.
Hamiltonella defensa infection increases honeydew production in certain aphid genotypes, potentially modifying aphid feeding behaviour. Parasitoid wasps, Aphidius ervi, are more attracted to honeydew from H. defensa‐infected aphids; though larger honeydew amounts may slightly deter searching.
Desiré Macheda, Alexandre Foito, Katharine F. Preedy, Colin J. Alexander, Ankush Prashar, Alison J. Karley   +5 more
wiley   +1 more source

Developmental expression of Ap‐Vas proteins in aphids and flies reveals their evolutionary roles in insects

Insect Molecular Biology, EarlyView.
Duplication of vas genes is universally observed in aphids, and phylogenetic analysis indicates that this event predates the divergence of Aphididae and Phylloxeridae. Ap‐vas1 is germline‐specific, whereas Ap‐vas2–4 exhibit somatic expression, indicating functional divergence during aphid embryogenesis.
Gee‐Way Lin, Szu‐Chieh Wang, Charles E. Cook, Ming‐Der Lin, Chun‐che Chang   +4 more
wiley   +1 more source

Identification of ion channel genes in the Acyrthosiphon pisum genome [PDF]

Insect Molecular Biology, 2010
Abstract Aphids are major pests of crops, causing hundreds of millions of dollars worth of damage annually. Ion channel proteins are often the targets of modern insecticides and mutations in ion channel genes can lead to resistance to many leading classes of insecticides. The sequencing of the pea aphid,
Dale, R. P., Jones, A. K., Tamborindeguy, C., Davies, T. G. E., Amey, J. S., Williamson, S., Wolstenholme, A., Field, L. M., Williamson, M. S., Walsh, T. K., Sattelle, D. B.   +10 more
openaire   +3 more sources

The effects of a synthetic insecticide and a mineral oil on alfalfa insect pests [PDF]

Pesticidi i Fitomedicina, 2018
The effects of the synthetic insecticide Eforia 043 ZK (thiamethoxam+lambdacyhalothrin), applied alone and at 1/5 and 2/5 reduced doses in a mix with the mineral oil Akarzin, on Tychius flavus Beck.
Mitkova Nikolova Ivelina, Anastasova Georgieva Natalia   +1 more
doaj   +1 more source