Male cuticular pheromones stimulate removal of the mating plug and promote re-mating through pC1 neurons inDrosophilafemales DOI Creative Commons
Minsik Yun, Do‐Hyoung Kim, Tal Soo Ha

и другие.

bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2023, Номер unknown

Опубликована: Ноя. 28, 2023

Abstract In birds and insects, the female uptakes sperm for a specific duration post-copulation known as ejaculate holding period (EHP) before expelling unused mating plug through ejection. this study, we found that Drosophila melanogaster females shortens EHP when incubated with males or mated shortly after first mating. This phenomenon, which termed m ale-induced E HP s hortening (MIES), requires Or47b+ olfactory ppk23+ gustatory neurons, activated by 2-methyltetracosane 7-tricosene, respectively. These odorants raise cAMP levels in pC1 responsible processing male courtship cues regulating receptivity. Elevated neurons reduce reinstate their responsiveness to cues, promoting re-mating faster study established MIES genetically tractable model of sexual plasticity conserved neural mechanism. Significance Statement Sexual plasticity, adaptation reproductive behavior social changes, was explored fruit fly, insect. Our findings revealed inseminated females, encountering another courting post-mating, shorten (EHP). Specific pathways phenomenon were identified, converging on brain-a circuit regulates activity. Odors associated shortening increased second messenger cAMP. The transient elevation heightened excitability facilitating prompt removal subsequent . behavioral provided framework understanding processes involved.

Язык: Английский

Silencing fatty acyl-CoA reductase with dsRNA damaged the lipid-based cuticle barrier in Locusta migratoria DOI

Hongfang Guo,

Weimin Liu, Xiaoming Zhao

и другие.

Pesticide Biochemistry and Physiology, Год журнала: 2025, Номер 210, С. 106365 - 106365

Опубликована: Март 4, 2025

Язык: Английский

Процитировано

1
Regulatory changes in the fatty acid elongase eloF underlie the evolution of sex-specific pheromone profiles in Drosophila prolongata DOI Creative Commons
Yige Luo,

Ayumi Takau,

Jiaxun Li

и другие.

BMC Biology, Год журнала: 2025, Номер 23(1)

Опубликована: Апрель 30, 2025

Язык: Английский

Процитировано

1
Seasonal changes in photoperiod and temperature lead to changes in cuticular hydrocarbon profiles and affect mating success in Drosophila suzukii DOI Creative Commons
Zsolt Kárpáti, Ferenc Deutsch, Balázs Kiss

и другие.

Scientific Reports, Год журнала: 2023, Номер 13(1)

Опубликована: Апрель 6, 2023

Abstract Seasonal plasticity in insects is often triggered by temperature and photoperiod changes. When climatic conditions become sub-optimal, might undergo reproductive diapause, a form of seasonal delaying the development organs activities. During cuticular hydrocarbon (CHC) profile, which covers insect body surface, also change to protect from desiccation cold temperature. However, CHCs are important cues signals for mate recognition changes CHC composition affect recognition. In present study, we investigated profile mating success Drosophila suzukii 1- 5-day-old males females summer winter morphs. compositions differed with age no significant differences were found between sexes same morph. The results behavioral assays show that morph pairs start earlier their life, have shorter duration, more offspring compared pairs. We hypothesize profiles morphs adapted survive conditions, potentially at cost reduced cues.

Язык: Английский

Процитировано

16
Chemical Camouflage Induced by Diet in a Pest Treehopper on Host Plants DOI Creative Commons
Luan Dias Lima, Amalia Victoria Ceballos‐González, Amanda Prato

и другие.

Plants, Год журнала: 2024, Номер 13(2), С. 216 - 216

Опубликована: Янв. 12, 2024

Ants patrol foliage and exert a strong selective pressure on herbivorous insects, being their primary predators. As ants are chemically oriented, some organisms that interact with them (myrmecophiles) use chemical strategies mediated by cuticular hydrocarbons (CHCs) to deal ants. Thus, better understanding of the ecology evolution mutualistic interactions between myrmecophiles depends accurate recognition these strategies. Few studies have examined whether treehoppers may an additional strategy called camouflage reduce ant aggression, none considered highly polyphagous pest insects. We analyzed similarity CHC profiles three host plants from plant families (Fabaceae, Malvaceae, Moraceae) facultative myrmecophilous honeydew-producing treehopper

Язык: Английский

Процитировано

5
Comparisons of lifespan and stress resistance between sexes in Drosophila melanogaster DOI Creative Commons
Yu-Chiao Lin, MingYang Zhang, Yu‐Jen Chang

и другие.

Heliyon, Год журнала: 2023, Номер 9(8), С. e18178 - e18178

Опубликована: Июль 12, 2023

Animals exhibit different extents of sexual dimorphism in a variety phenotypes. Sex differences longevity, one the most complex life history traits, have also been reported. Although lifespan regulation has studied extensively fruit fly, Drosophila melanogaster, sex not consistent previous studies. To explore this issue, we revisited question by examining and stress resistance both sexes among 15 inbred strains. We first found positive correlations between males females from same strain terms to starvation desiccation stress. difference male female flies varied greatly depending on strain, across all strains collectively had longer lifespan. In contrast, showed better observed greater variation females. Unexpectedly, there was no notable correlation three types either or Overall, our study provides new data regarding fly resistance; information may promote investigation mechanisms underlying longevity future research.

Язык: Английский

Процитировано

10
Regulation of insect cuticular hydrocarbon biosynthesis DOI
Zinan Wang, Ignatius Putra Andika, Henry Chung

и другие.

Current Opinion in Insect Science, Год журнала: 2024, Номер 67, С. 101287 - 101287

Опубликована: Окт. 24, 2024

Язык: Английский

Процитировано

4
Dehydration-induced Ae-Aper50 regulates midgut infection in Aedes aegypti mosquitoes DOI Creative Commons
Anastasia Accoti, Margaret Becker, Angel Elma I. Abu

и другие.

mBio, Год журнала: 2025, Номер unknown

Опубликована: Янв. 23, 2025

ABSTRACT Climate change is predicted to increase the spread of mosquito-borne viruses, but genetic mechanisms underlying influence environmental variation on ability insect vectors transmit human pathogens unknown. In response a changing climate, mosquitoes will experience longer periods drought. An important physiological dry environments protection against dehydration, here defined as desiccation tolerance. While temperature known impact interactions between mosquito and virus, role dehydration remains We identified two genetically diverse lines Aedes aegypti , major arbovirus vector, with marked differences in To determine these contrasting lines, we compared gene expression profiles desiccant- non-desiccant-treated individuals both desiccation-tolerant -susceptible by RNAseq. Gene analysis demonstrated that several genes are differentially expressed stress lines. The most highly transcript under desiccation-susceptible line encodes peritrophin protein, Ae-Aper50 . Peritrophins play crucial peritrophic matrix formation midgut after bloodmeal. silencing RNAi required for survival stress, not line. Moreover, knockdown resulted higher Zika virus (ZIKV) infection rates increased ZIKV viral replication susceptible line, chikungunya (CHIKV) Altogether, results provide link infection, which has implications predicting how climate viruses. IMPORTANCE have profound impacts burden viruses transmitted mosquitoes. know changes physiology dynamics within mosquito, there complete lack knowledge low humidity, or drought tolerance, arboviruses. Understanding tolerance alter arboviruses critical preventing This work demonstrates functional infection. significantly enhances our understanding droughts could

Язык: Английский

Процитировано

0
Latitudinal Clines in Climate and Sleep Patterns Shape Disease Outcomes in Drosophila melanogaster Infected by Metarhizium anisopliae DOI Creative Commons

Mintong Nan,

Jonathan B. Wang,

Michail Siokis

и другие.

Ecology and Evolution, Год журнала: 2025, Номер 15(3)

Опубликована: Фев. 28, 2025

ABSTRACT Major latitudinal clines have been observed in Drosophila melanogaster , a human commensal that originated tropical Africa and has subsequently dispersed globally to colonize temperate habitats. However, despite the crucial role pathogens play species distribution, our understanding of how geographical factors influence disease susceptibility remains limited. This investigation explored effects biomes on resistance using common fly pathogen Metarhizium anisopliae 43 global populations. The findings revealed correlations between gradients sleep duration, temperature, humidity. Although enhanced defenses may be driven by fungal diversity at latitudes, most disease‐resistant males also showed highest desiccation. suggests potential trade‐offs abiotic stress resistance, necessary for survival habitats, resistance. Furthermore, study uncovered interactions sex, mating status, sleep, stresses, affecting Notably, longer‐sleeping virgin flies survived infections longer, with additional daytime post‐infection being protective, particularly resistant lines. These observations support hypothesis defense are intertwined traits linked organismal fitness subject joint clinal evolution.

Язык: Английский

Процитировано

0
Lipid Metabolism in Diapause DOI
Umut Toprak, Nicholas M. Teets, Doğa Cedden

и другие.

Advances in experimental medicine and biology, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Язык: Английский

Процитировано

0
The role of body size and cuticular hydrocarbons in the desiccation resistance of invasive Argentine ants (Linepithema humile) DOI Creative Commons
Brian A. Whyte, Rebecca Sandidge, Jan Buellesbach

и другие.

Journal of Experimental Biology, Год журнала: 2023, Номер 226(16)

Опубликована: Июль 27, 2023

An insect's cuticle is typically covered in a layer of wax prominently featuring various hydrocarbons involved desiccation resistance and chemical communication. In Argentine ants (Linepithema humile), cuticular (CHCs) communicate colony identity, but also provide waterproofing necessary to survive dry conditions. Theory suggests different CHC compound classes have functional trade-offs, such that selection for compounds used communication would compromise waterproofing, vice versa. We sampled sites invasive L. humile populations from across California test whether differences between them can explain their survival. hypothesized CHCs whose abundance was correlated with environmental factors determine survival during desiccation, our regression analysis did not support this hypothesis. Interestingly, we found the most had negative correlation survival, regardless class. suggest nests are insufficient differential against body mass better predictor at scale comparison.

Язык: Английский

Процитировано

8