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Cryptolaemus montrouzieri

ABSTRACT: Transcriptome of ladybird beetles under different conditions

PROVIDER: PRJNA304936 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR2970871_1.fastq.gz	Fastqsanger.gz
	SRR2970871_2.fastq.gz	Fastqsanger.gz
	SRR2971112_1.fastq.gz	Fastqsanger.gz
	SRR2971112_2.fastq.gz	Fastqsanger.gz
	SRR2971122_1.fastq.gz	Fastqsanger.gz

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Cryptolaemus montrouzieri

Project description:Transcriptome of the ladybird beetle Cryptolaemus montrouzieri fed natural and unnatural diets

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Cryptolaemus montrouzieri

Project description:Cryptolaemus montrouzieri Mulsant, 1853 Transcriptome or Gene expression

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Cryptolaemus montrouzieri

Project description:The 1KITE project: evolution of insects

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Cryptolaemus montrouzieri

Project description:Cryptolaemus montrouzieri overview

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Genomic insight into diet adaptation in the biological control agent Cryptolaemus montrouzieri.

Project description:BackgroundThe ladybird beetle Cryptolaemus montrouzieri Mulsant, 1853 (Coleoptera, Coccinellidae) is used worldwide as a biological control agent. It is a predator of various mealybug pests, but it also feeds on alternative prey and can be reared on artificial diets. Relatively little is known about the underlying genetic adaptations of its feeding habits.ResultsWe report the first high-quality genome sequence for C. montrouzieri. We found that the gene families encoding chemosensors and digestive and detoxifying enzymes among others were significantly expanded or contracted in C. montrouzieri in comparison to published genomes of other beetles. Comparisons of diet-specific larval development, survival and transcriptome profiling demonstrated that differentially expressed genes on unnatural diets as compared to natural prey were enriched in pathways of nutrient metabolism, indicating that the lower performance on the tested diets was caused by nutritional deficiencies. Remarkably, the C. montrouzieri genome also showed a significant expansion in an immune effector gene family. Some of the immune effector genes were dramatically downregulated when larvae were fed unnatural diets.ConclusionWe suggest that the evolution of genes related to chemosensing, digestion, and detoxification but also immunity might be associated with diet adaptation of an insect predator. These findings help explain why this predatory ladybird has become a successful biological control agent and will enable the optimization of its mass rearing and use in biological control programs.

| S-EPMC7905881 | biostudies-literature

Larval nutrition-induced plasticity affects reproduction and gene expression of the ladybeetle, Cryptolaemus montrouzieri.

Project description:Organisms may develop into multiple phenotypes under different nutritional environments by developmental plasticity, whereas the potential costs and mechanisms of such plasticity are poorly understood. Here we examined the fitness and gene expression of nutrition-induced phenotypes in the ladybeetle, Cryptolaemus montrouzieri after having experienced varying larval food regimes.We found that C. montrouzieri adults undergoing a variable larval food regime achieved a similar developmental time, survival, body mass and egg production as those undergoing a high larval food regime. The survival, developmental time, body mass and fecundity of the adults from a restricted larval food regime were inferior to those from the high and variable larval food regimes. However, the adults from this restricted larval food regime had a higher expression level of genes encoding immune- and antioxidant-related enzymes than those from the high and variable larval food regimes when exposed to starvation and pesticide conditions in adult life.These results suggest that larval food availability in C. montrouzieri not only triggers adult phenotypic differences but also affects reproduction and expression level of genes in adult life, indicating that the larval nutritional conditions can affect adult fitness and resistance to stressful conditions through developmental plasticity.

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Genomic changes in the biological control agent <i>Cryptolaemus montrouzieri</i> associated with introduction.

Project description:Biological control is the main purpose of intentionally introducing non-native invertebrate species. The evolutionary changes that occur in the populations of the introduced biological control agents may determine the agent's efficiency and the environmental safety. Here, to explore the pattern and extent of potential genomic changes in the worldwide introduced predatory ladybird beetle Cryptolaemus montrouzieri, we used a reduced-representation sequencing method to analyze the genome-wide differentiation of the samples from two native and five introduced locations. Our analyses based on a total of 53,032 single nucleotide polymorphism loci showed that beetles from the introduced locations in Asia and Europe exhibited significant reductions in genetic diversity and high differentiation compared with the samples from the native Australian range. Each introduced population belonged to a unique genetic cluster, while the beetles from two native locations were much more similar. These genomic patterns were also detected when the dataset was pruned for genomic outlier loci (52,318 SNPs remaining), suggesting that random genetic drift was the main force shaping the genetic diversity and population structure of this biological control agent. Our results provide a genome-wide characterization of polymorphisms in a biological control agent and reveal genomic differences that were influenced by the introduction history. These differences might complicate assessments of the efficiency of biological control and the invasion potential of this species but also indicate the feasibility of selective breeding.

| S-EPMC6503826 | biostudies-literature

Coccinellini species

Project description:Transcriptome of Coccinellini ladybird beetles fed different diets

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Cryptolaemus montrouzieri isolate:SYSU2018

Project description:Coccinellidae genome sequences from SYSU, China

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Ladybird beetles

Project description:Transcriptome of ladybird beetles under infection of aphid symbionts

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