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RNA-seq data of tea mosquito bugs, Helopeltis bradyi, antennae.

ABSTRACT: Tea Mosquito Bug (TMB), Helopeltis bradyi (Hemiptera: Miridae) is one of the major pest infesting tea and cocoa plantations worldwide. Developing olfaction-based control methods was urges as an alternative to commonly used but non-environmental friendly chemical pesticides. However, the molecular mechanisms underlying TMB reception mechanism are still lacking. Here, we collected a pooled male and female TMB antennae for RNA extraction followed by sequencing using the BGISEQ-500 platform and de novo assembly. TMB antennae RNA-seq data yielded 32,142 unigenes with N50 and GC (%) were 2322 and 40.25; subsequently. The RNA-seq data are available in GenBank Sequence Read Archive (SRA) database with accession number SRR13327229. De novo transcriptome analysis had identified several genes involved in TMB odorant reception includes; 39 OBPs (odorant binding proteins), 10 CSPs (chemosensory proteins), 81 Ors (odorant receptors), 1 Orcos (co-receptors), 9 SNMPs (sensory neuron membrane proteins), 3 GRs (gustatory receptors) and 4 IRs (ionotropic receptors). Our study presents the first RNA seq for TMB antennae, which serve the primary molecular resources data, which will facilitate further research to develop olfaction-based control methods, potentially contribute to TMB management strategies.

SUBMITTER: Soffan A

PROVIDER: S-EPMC8377556 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Project description:BackgroundBoth Culex quinquefasciatus and Cx. pipiens molestus are sibling species within Cx. pipiens complex. Even though they are hard to distinguish morphologically, they have different physiological behaviors. However, the molecular mechanisms underlying these differences remain poorly understood.MethodsTranscriptome sequencing was conducted on antennae of two sibling species. The identification of the differentially expressed genes (DEGs) was performed by the software DESeq2. Database for Annotation, Visualization and Integrated Discovery was used to perform GO pathway enrichment analysis. The protein-protein interaction (PPI) network was constructed with Cytoscape software. The hub genes were screened by the CytoHubba plugin and Degree algorithms. The identified genes were verified by quantitative real-time PCR.ResultsMost annotated transcripts (14,687/16,005) were expressed in both sibling species. Among 15 identified odorant-related DEGs, OBP10 was expressed 17.17 fold higher in Cx. pipiens molestus than Cx. quinquefasciatus. Eighteen resistance-related DEGs were identified, including 15 from CYP gene family and three from acetylcholinesterase, in which CYP4d1 was 86.59 fold more highly expressed in C. quinquefasciatus. Three reproductive DEGs were indentified with the expression from 5.01 to 6.55 fold. Among eight vision-related DEGs, retinoic acid receptor RXR-gamma in Cx. pipiens molestus group was more expressed with 214.08 fold. Among the 30 hub genes, there are 10 olfactory-related DEGs, 16 resistance-related DEGs, and four vision-related DEGs, with the highest score hub genes being OBP lush (6041148), CYP4C21 (6044704), and Rdh12 (6043932). The RT-qPCR results were consistent with the transcriptomic data with the correlation coefficient R = 0.78.ConclusionThe study provided clues that antennae might play special roles in reproduction, drug resistance, and vision, not only the traditional olfactory function. OBP lush, CYP4C21, and Rdh12 may be key hints to the potential molecular mechanisms behind the two sibling species' biological differences.

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RNA-seq data of tea mosquito bugs, Helopeltis bradyi, antennae.

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