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Kin recognition: neurogenomic response to sib mating avoidance in a parasitic wasp

ABSTRACT: Sib mating increase homozygosity and can lead to inbreeding depression. Selective pressures have favored the evolution of kin recognition and sib avoidance in mate choice. Such avoidance behavior has been recorded in the parasitoid wasp Venturia canescens where the sex determining system (single-locus complementary sex determination, sl-csd) introduces an extra short-term cost to inbreeding; females preferentially mate with unrelated males. The genetics underlying mate choice of females and kin recognition remains largely unexplored. Here we analyzed the head transcriptomic changes after exposure to distinct stimulus: courtship by unrelated male or courtship by brother, while transcriptome of females alone was used as control. Our results demonstrate that male courtship provokes a major transcriptome reprogramming in females heads. The transcriptomic response is highly dependent on the compatibility of the courting male. We subdivided the socially responsive genes using an integrative gene network analysis, we highlighted genes regulated by courtship, whatever the relatedness of the courting male. We also showed that the regulation of some peculiar group of genes is very specific of compatible male courtship, while others are regulated only by incompatible male courtship. We suggest that those different transcriptomic responses lead to mating decision or sib mating avoidance behavior observed in this species.

ORGANISM(S): Venturia canescens

PROVIDER: GSE124129 | GEO | 2018/12/20

REPOSITORIES: GEO

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Kin recognition: neurogenomic response to sib mating avoidance in a parasitic wasp

Project description:Kin recognition: neurogenomic response to sib mating avoidance in a parasitic wasp

| PRJNA510817 | ENA

Male-specific Fruitless isoforms have different regulatory roles conferred by distinct zinc finger DNA binding domains

2013-09-30 | GSE50515 | GEO

Male-specific Fruitless isoforms have different regulatory roles conferred by distinct zinc finger DNA binding domains

Project description:Drosophila melanogaster adult males perform an elaborate courtship ritual to entice females to mate. fruitless (fru), a gene that is one of the key regulators of male courtship behavior, encodes multiple male-specific isoforms (FruM). These isoforms vary in their carboxy-terminal zinc finger domains, which are predicted to facilitate DNA binding. By over-expressing individual FruM isoforms in fru-expressing neurons in either males or females and assaying the global transcriptional response by RNA-sequencing, we show that three FruM isoforms have different regulatory activities that depend on the sex of the fly. We identified several sets of genes regulated downstream of FruM isoforms. RNA seqeuncing was performed on mRNA derived from adult male or female heads, for a total of 39 samples. These samples included two wild type genotypes (Berlin and Canton-S), two transheterozygous mutants for fru P1 (Df(3R)P14/Df(3R)fru4-40 and fruw12/ Df(3R)ChaM5), and 3 overexpressing genotypes (fru P1-Gal4: UAS-FruMA, UAS-FruMB, UAS-FruMC). There were at least 3 replicates from biological samples for all sex by genotype combinations.

2013-09-30 | E-GEOD-50515 | biostudies-arrayexpress

Immunogenic males: a genome-wide analysis of reproduction and the cost of mating in Drosophila melanogaster females

Project description:In Drosophila melanogaster, mating radically transforms female physiology and behavior. Post-mating responses include an increase in the oviposition rate, a reduction in female receptivity, and an activation of the immune system . The fitness consequences of mating are similarly dramatic – females must mate once in order to produce fertile eggs, but additional matings have a clear negative effect. Previously, microarrays have been used to examine gene expression of females differing in their reproductive status with the aim of identifying genes influenced by mating. However, since only virgin and single mated females were compared, transcriptional changes associated with reproduction (under natural selection) and the effects of male-induced harm (under sexually antagonistic selection) cannot be disentangled. We partitioned these fundamentally different effects by instead examining the expression profiles of virgin, single mated and double mated females. We found substantial effects relating to reproduction and further effects that are only attributable to a second mating. Immune response genes dominate this male-induced harm effect indicating that the cost of mating may be due partly to this system's activation. We propose that both sexually antagonistic and natural selection have been important in the evolution of the innate immunity genes, thereby contributing to the sexual dimorphismand rapid evolution at these loci. Keywords: Female response to mating

2009-02-19 | GSE12834 | GEO

Project description:Transcriptomic profile of courtship and mating on Aedes aegypti females

| PRJNA551490 | ENA

The PSI-U1 snRNP interaction regulates male mating behavior in Drosophila

Project description:Alternative pre-mRNA splicing (AS) is a critical regulatory mechanism that operates extensively in the nervous system to produce diverse protein isoforms. Fruitless AS isoforms have been shown to influence male courtship behavior, but the underlying mechanisms are unknown. Using genome-wide approaches and quantitative behavioral assays, we show that the P element somatic inhibitor (PSI) and its interaction with U1 snRNP control male courtship behavior. PSI mutants lacking the U1 snRNP-interacting domain (PSIΔAB mutant) exhibit extended but futile mating attempts. The PSIΔAB mutant results in significant changes in the AS patterns of ~1,200 genes in the Drosophila brain, many of which have been implicated in the regulation of male courtship behavior. PSI directly regulates the AS of at least a third of these transcripts, suggesting that PSI-U1 snRNP interactions coordinate the behavioral network underlying courtship behavior. Importantly, one of these direct targets is fruitless — the master regulator of courtship. Thus, PSI imposes a specific mode of regulatory control within the neuronal circuit controlling courtship, even though it is broadly expressed in the fly nervous system. This study reinforces the importance of AS in the control of gene activity in neurons and integrated neuronal circuits, and provides a surprising link between a pleiotropic pre-mRNA splicing pathway and the precise control of successful male mating behavior.

2016-04-30 | GSE79916 | GEO

Post-mating expression of female D. melanogaster genomes experimentally evolved under different post-copulatory sexual selection regimes

Project description:By combining an experimental evolution approach with genomic techniques, we investigated the effects of seminal fluid on female gene expression. In our study, we experimentally manipulated the mating system in replicate populations of D. melanogaster, by removing post-copulatory sexual selection, with the aim of testing differences in short term post-mating reaction of females evolved under different mating strategies. We show that monogamous females suffer decreased fecundity, regardless of the type of male they were mated with, and that their post-mating gene expression profiles differ significantly from promiscuous females, involving 1141 transcripts (9% of the genes tested). These transcripts are active in several tissues, mainly ovaries, neural tissues, midgut and spermathecae, and are involved in metabolic processes, reproduction and signaling pathways. Our results provide a list of candidate genes responsible for the decrease in female fecundity in the absence of post-copulatory sexual selection, and demonstrate how the female post-mating response can evolve under different mating systems over relatively short time frames. From a LHM base population, we created 8 replicate populations and maintained them under experimental evolution: 4 populations were allowed to mate only once every generation (monogamy), and the other 4 were kept under the standard mating protocol (promiscuous). After 46 generation, we crossed males and females within the same population and with individuals of the opposite treatment. Mated female flies were frozen 6 h after mating and RNA extracted. Two biological replicates per cross per population (2x2x8=32 samples).

2014-01-15 | E-GEOD-30089 | biostudies-arrayexpress

Post-mating expression of female Drosophila melanogaster genomes experimentally evolved under different post-copulatory sexual selection regimes

Project description:By combining an experimental evolution approach with genomic techniques, we investigated the effects of seminal fluid on female gene expression. In our study, we experimentally manipulated the mating system in replicate populations of D. melanogaster, by removing post-copulatory sexual selection, with the aim of testing differences in short term post-mating reaction of females evolved under different mating strategies. We show that monogamous females suffer decreased fecundity, regardless of the type of male they were mated with, and that their post-mating gene expression profiles differ significantly from promiscuous females, involving 1141 transcripts (9% of the genes tested). These transcripts are active in several tissues, mainly ovaries, neural tissues, midgut and spermathecae, and are involved in metabolic processes, reproduction and signaling pathways. Our results provide a list of candidate genes responsible for the decrease in female fecundity in the absence of post-copulatory sexual selection, and demonstrate how the female post-mating response can evolve under different mating systems over relatively short time frames. From an LHM base population, we created 8 replicate populations and maintained them under experimental evolution: 4 populations were allowed to mate only once every generation (monogamy), and the other 4 were kept under the standard mating protocol (promiscuous). After 46 generations, we crossed males and females within the same population and with individuals of the opposite treatment. Mated female flies were frozen 6 h after mating and RNA extracted. Two biological replicates per cross per population (2x2x8=32 samples).

2014-01-01 | E-GEOD-48385 | biostudies-arrayexpress

Transcription profiling of sperm storage organs (spermathecae) from female Anopheles gambiae mosquitoes as virgin and 24 hours after mating

Project description:Since Anopheles gambiae female mosquitoes mate only once in their lifetime, and store sperm received from males potentially for weeks, genes and pathways regulated by mating in the sperm storage organ (spermatheca) to preserve sperm function may represent new targets for vector control. The transcriptional response to mating in the spermatheca was investigated using Agilent two-color microarrays. Spermathecae from mated females were collected 24 h after mating and compared to age-matched virgins. 4 biological replicates were performed.

2014-09-18 | E-MTAB-2429 | biostudies-arrayexpress

A male-specific steroid hormone controls female reproductive biology in the malaria mosquito

Project description:Insects, unlike vertebrates, are generally believed to lack steroid hormones with functions predominantly associated with adult male biology. In the malaria mosquito Anopheles gambiae, the ecdysteroid 20-hydroxyecdysone (20E) appears to both control egg development in females and induce mating refractoriness and oviposition when sexually transferred by males. Here we show that these sex-specific functions are instead carried out by distinct steroids. We identify a male-specific oxidized form of 20E (3D20E) that upon sexual transfer switches off female mating receptivity, ensuring male paternity. Endogenous female 20E does not induce mating refractoriness, while it triggers oviposition in mated females when expression of a 20E-inhibiting kinase is repressed. 3D20E and 20E have different downstream targets, with 3D20E inducing expression of a tolerance factor that preserves female fitness during Plasmodium infection. The evolution of this male steroid has therefore not only shaped the mating biology of An. gambiae, but also impacted malaria transmission.

2022-04-21 | PXD032157 | Pride

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