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Insect Molecular Biology: Volume 32, Issue 4
E1-E3, 329-459August 2023
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Issue Information
Original Articles
Function and evolution of the aquaporin IsAQP1 in the Lyme disease vector Ixodes scapularis
- Pages: 329-339
- First Published: 21 January 2023
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IsAQP1 , an aquaporin found in the black legged tick (Ixodes scapularis), is a functional water channel with low permeability to glycerol.
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In a phylogenetic analysis of 176 sequences from 48 arachnid species, most tick and other arachnid AQP-like genes formed a monophyletic clade nested within aquaglyceroporins (GLPs).
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IsAQP1 shows salivary-gland specific expression in adult females—with highest expression in unfed females—suggesting a role in water balance before or during blood feeding
Silencing of the immune gene BmPGRP-L4 in the midgut affects the growth of silkworm (Bombyx mori) larvae
- Pages: 340-351
- First Published: 27 January 2023
Circadian clock regulates developmental time through ecdysone and juvenile hormones in Bombyx mori
- Pages: 352-362
- First Published: 23 February 2023
Development of transgenic corn planthopper Peregrinus maidis that express the tetracycline transactivator
- Pages: 363-375
- First Published: 24 February 2023
- The promoters from the Peregrinus maidis ubiquitin-like and profilin genes were isolated, shown to be active using transient expression assays and used to drive expression of fluorescent protein genes.
- Transgenic lines that express the tetracycline transactivator or tTA were made using piggyBac vectors. This is the first report of a transgenic Hemiptera.
- The lines were fully viable when reared on diet without doxycycline and did not show the expected overexpression of tTA.
Nilaparvata lugens ERR2 regulates moulting and ovary development is related to hormone signalling
- Pages: 376-386
- First Published: 02 March 2023
Evolution of mitogenomic gene order in Orthoptera
- Pages: 387-399
- First Published: 08 March 2023
Analyses of ecdysteroid transporters in the fat body of Tribolium castaneum
- Pages: 400-411
- First Published: 09 March 2023
- We analysed two ABCG-transporters and one organic anion transporting polypeptide (OATP) in Tribolium castaneum.
- Mutual RNAi effects observed for the tested ABCG and OATP genes indicate interdependent gene regulation.
- We provide RNAi and mass-spectrometric data suggesting that these proteins are involved in ecdysteroid transport in the fat body.
Structural and functional insights into the ATP-binding cassette transporter family in the corn planthopper, Peregrinus maidis
- Pages: 412-423
- First Published: 13 March 2023
Gene expression profiles of chemosensory genes of termite soldier and worker antennae
- Pages: 424-435
- First Published: 05 April 2023
- Genome-wide comparative transcriptome analysis of Reticulitermes speratus worker and soldier antennal tissues clarified that there were three non-receptor genes with significantly high expression levels in soldier antennae.
- Independent quantitative PCR analysis showed that the expression patterns of three non-receptor genes in the soldier and worker antennae were changed in the different social contexts (different soldier ratios).
- These chemoreception genes may be involved in soldier-specific defensive roles, but may also have other roles in social organization such as nestmate recognition and division of labour.
Association of endoplasmic reticulum associated degradation (ERAD) with the transmission of Liberibacter solanacearum by its psyllid vector
- Pages: 436-449
- First Published: 15 April 2023
- Endoplasmic reticulum (ER) associated degradation (ERAD) on the ER-cytosol interface and the involvement of derlin-1 in ERAD and its interaction with CLso.
- Derlin-1 and CLso co-localize in a stripe-like pattern in the psyllid midgut.
- Inhibiting ERAD with Eer I or silencing derlin-1 with double stranded RNA (dsRNA) significantly interferes with CLso transmission and its col-localization with derlin-1.
Acetylcholine titre regulation by non-neuronal acetylcholinesterase 1 and its putative roles in honey bee physiology
- Pages: 450-459
- First Published: 02 May 2023
- Honey bee acetylcholinesterase 1 (AmAChE1) modulates the acetylcholine (ACh) titre of honey bees.
- Unlike AmAChE2, which is solely distributed in neuronal tissues, AmAChE1 is present in both neuronal and non-neuronal tissues.
- The regulation of ACh levels via the expression of AmAChE1 is associated with protein biosynthesis and energy metabolism in the head of honey bees.