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1. Division of labour in the black garden ant (Lasius niger) leads to three distinct proteomes

Author:
Quque, Martin; Benhaim-Delarbre, Margaux; Deneubourg, Jean-Louis; Sueur, Cédric; Criscuolo, François; Bertile, Fabrice
Source:
Journal of insect physiology 2019 v.117 pp. 103907
ISSN:
0022-1910
Subject:
Lasius niger; adults; energy; genetic variation; immunity; insect physiology; longevity; males; mass spectrometry; pesticide resistance; polyethism; proteome; proteomics; queen insects; reproduction; risk factors; social insects; social structure; worker insects
Abstract:
... Task specialization in social insects leads to striking intra-specific differences in behaviour, morphology, physiology and longevity, but the underlying mechanisms remain not yet fully understood. Adult colonies of black garden ants (Lasius niger) have a single queen fertilized by one or a small number of males. The inter-individual genetic variability is thus relatively low, making it easier to ...
DOI:
10.1016/j.jinsphys.2019.103907

2. Repeated phenotypic selection for cuticular blackness of armyworm larvae decreased stress resistance

Author:
Matsumura, Takashi; Taya, Hikaru; Matsumoto, Hitoshi; Hayakawa, Yoichi
Source:
Journal of insect physiology 2019 v.117 pp. 103889
ISSN:
0022-1910
Subject:
Mythimna separata; adults; antioxidant activity; antioxidant enzymes; catalase; color; fat body; fecundity; females; gene expression; genes; genetic analysis; heat stress; heat treatment; hemolymph; insect physiology; larvae; longevity; males; natural selection; phenotype; phenotypic selection; population density; progeny; reactive oxygen species; stress tolerance; superoxide dismutase
Abstract:
... Armyworm Mythimna separata larvae show changes in cuticle darkening depending on population densities and are roughly categorized into two phenotypes, a pale brown solitary type and black-colored gregarious type. Although the color difference in both larval types is apparent, it remains ambiguous whether any change in physiological traits accompanies the cuticle darkening. To answer this query, we ...
DOI:
10.1016/j.jinsphys.2019.05.007

3. Reproductive performance among color morphs of Diaphorina citri Kuwayama, vector of citrus greening pathogens

Author:
Ibanez, Freddy; Racine, Kristin; Hoyte, Angelique; Stelinski, Lukasz L.
Source:
Journal of insect physiology 2019 v.117 pp. 103904
ISSN:
0022-1910
Subject:
Candidatus Liberibacter asiaticus; Citrus; Diaphorina citri; adults; bacteria; color; females; gene expression regulation; genes; greening disease; insect physiology; insects; morphs; oocytes; oviposition; pathogens; reproductive performance; transcription factors; trees; vitellogenesis
Abstract:
... Diaphorina citri Kuwayama, commonly known as Asian citrus psyllid (ACP), transmits the bacterium Candidatus Liberibacter asiaticus (CLas), one of the causative agents of Huanglongbing (HLB) to citrus trees. Within ACP populations, three adult abdominal color polymorphisms: gray/brown, blue/green, and orange/yellow have been described. Despite the economic importance of this insect, the molecular m ...
DOI:
10.1016/j.jinsphys.2019.103904
CHORUS:
10.1016/j.jinsphys.2019.103904

4. Target of rapamycin (TOR) determines appendage size during pupa formation of the red flour beetle Tribolium castaneum

Author:
Lin, Xianyu; De Schutter, Kristof; Chafino, Silvia; Franch-Marro, Xavier; Martín, David; Smagghe, Guy
Source:
Journal of insect physiology 2019 v.117 pp. 103902
ISSN:
0022-1910
Subject:
Tribolium castaneum; adults; appendages; body size; cell cycle; double-stranded RNA; elytra; food intake; genetic markers; hormones; insect pests; insect physiology; instars; larvae; larval development; models; pupae; rapamycin; transcription (genetics)
Abstract:
... The adult body size is species-specific and controlled by complex interactions between hormones and the IIS/TOR pathway. To analyze the role of target of rapamycin (TOR) in the growth and development of the insect, expression levels of TOR were silenced in the model and pest insect red flour beetle, Tribolium castaneum. Injection of dsRNA into the last larval instar decreased pupal mass and size, ...
DOI:
10.1016/j.jinsphys.2019.103902