Harvey, Jeffrey A
Published in
Journal of insect physiology
In many spiders, females are significantly larger than males. Several theories have been postulated to explain sexual size dimorphism (SSD), including differential predation risks experienced by each sex early in life (including female cannibalism of males), male-male competition, and the more costly production of eggs than sperm. However, there is...
Ragionieri, Lapo Verdonck, Rik Verlinden, Heleen Marchal, Elisabeth Broeck, Jozef Vanden Predel, Reinhard
Published in
Journal of insect physiology
We compiled a comprehensive list of 67 precursor genes encoding neuropeptides and neuropeptide-like peptides using the Schistocerca gregaria genome and several transcriptome datasets. 11 of these 67 precursor genes have alternative transcripts, bringing the total number of S. gregaria precursors identified in this study to 81. Based on this precurs...
Lemauf, Séverine Cazes, Dominique Poirié, Marylène Gatti, Jean-Luc
Published in
Journal of insect physiology
The Drosophila endoparasitoid wasps Leptopilina boulardi and L. heterotoma (Hymenoptera: Cynipidae) are pro-ovigenic species, i.e., females contain their lifetime number of mature eggs at emergence. They are therefore able to immediately parasitize many hosts when present. In response to parasitoid oviposition, the larval host D. melanogaster can m...
Norris, Edmund J Bloomquist, Jeffrey R
Published in
Journal of insect physiology
Resistance to currently utilized chemical insecticidal agents represents a significant threat to public health and food security worldwide. Better understanding the neurophysiological effects of available and candidate insecticidal molecules is valuable for characterizing the mechanisms of insecticide resistance, as well as the design and study of ...
Ammagarahalli, Byrappa Layne, John E Rollmann, Stephanie M
Published in
Journal of insect physiology
Animals may vary in their utilization of plants depending on plant availability, and also on the sex of the animal. Evolutionary adaptations may arise, particularly in specialist animals to the chemistry of the host plants, and these adaptations may differ between the sexes due to differences in their interactions with the plants. Drosophila mojave...
Komo, Larissa Charabidze, Damien
Published in
Journal of insect physiology
Several studies have highlighted the impact of environmental factors such as food type or larval density on the development of blowfly larvae. We investigated how changes in development speed (due to larval density and group composition) are divided among feeding and post-feeding stages. Even if these parameters impinge only on feeding larvae, they...
Coulm, Martin Meunier, Joël
Published in
Journal of insect physiology
Moulting is a cornerstone of arthropods development. It can be determined by numerous factors such as body mass, temperature, and immunity. However, the effects of these factors can be dependent on each other, so that it is often difficult to predict whether and how they shape moulting, and whether their effects are additive or interactive. In this...
Manenti, Tommaso Sten, Linnea Juul Loeschcke, Volker
Published in
Journal of insect physiology
Photoperiod is one of the most reliable seasonal cues that organisms can use to prepare for upcoming environmental changes. Evidence suggests that exposure to different photoperiod can activate plastic responses in stress resistance traits, while there is limited evidence on the plastic response induced by daily progressive cumulative changes in ph...
Kang, Wei-Nan Wang, Bing-Yao Fu, Kai-Yun Guo, Wen-Chao Jin, Lin Li, Guo-Qing
Published in
Journal of insect physiology
Forkhead box O (FoxO) protein, a major downstream transcription factor of insulin/insulin-like growth factor signaling/target of rapamycin pathway (IIS/TOR), is involved in the regulation of larval growth and the determination of organ size. FoxO also interacts with 20-hydroxyecdysone (20E) and juvenile hormone (JH) signal transduction pathways, an...
Iltis, Corentin Louâpre, Philippe Vogelweith, Fanny Thiéry, Denis Moreau, Jérôme
Published in
Journal of insect physiology
Organisms are increasingly confronted with intense and long-lasting heat waves. In insects, the effects of heat waves on individual performance can vary in magnitude both within (e.g. from one larval instar to another) and between life stages. However, the reasons underlying these stage-dependent effects are not fully understood. There are several ...
