Differential gene expression and microRNA profile in icorpora allata-corpora cardiaca/i of iAedes aegypti/i mosquitoes with weak juvenile hormone signalling

0582766 - BC 2025 RIV GB eng J - Journal Article
Qi, Z. - Etebari, K. - Nouzová, Marcela - Noriega, F. G. - Asgari, S.
Differential gene expression and microRNA profile in icorpora allata-corpora cardiaca/i of iAedes aegypti/i mosquitoes with weak juvenile hormone signalling.
BMC Genomics. Roč. 25, č. 1 (2024), č. článku 113. ISSN 1471-2164. E-ISSN 1471-2164
R&D Projects: GA ČR(CZ) GA22-21244S
Institutional support: RVO:60077344
Keywords : troponin-t * drosophila * biosynthesis * maintenance * annotation * evolution * homolog * pathway * body * Aedes aegypti * Mosquito * Transcriptome * RNA-Seq * Epoxidase * Juvenile hormone * microRNA * Corpora allata
OECD category: Biochemistry and molecular biology
Impact factor: 4.4, year: 2022
Method of publishing: Open access
https://bmcgenomics.biomedcentral.com/articles/10.1186/s12864-024-10007-9

The corpora allata-corpora cardiaca (CA-CC) is an endocrine gland complex that regulates mosquito development and reproduction through the synthesis of juvenile hormone (JH). Epoxidase (Epox) is a key enzyme in the production of JH. We recently utilized CRISPR/Cas9 to establish an epoxidase-deficient (epox(-/-)) Aedes aegypti line. The CA from epox(-/-) mutants do not synthesize epoxidated JH III but methyl farneosate (MF), a weak agonist of the JH receptor, and therefore have reduced JH signalling. Illumina sequencing was used to examine the differences in gene expression between the CA-CC from wild type (WT) and epox(-/-) adult female mosquitoes. From 18,034 identified genes, 317 were significantly differentially expressed. These genes are involved in many biological processes, including the regulation of cell proliferation and apoptosis, energy metabolism, and nutritional uptake. In addition, the same CA-CC samples were also used to examine the microRNA (miRNA) profiles of epox(-/- )and WT mosquitoes. A total of 197 miRNAs were detected, 24 of which were differentially regulated in epox(-/-) mutants. miRNA binding sites for these particular miRNAs were identified using an in silico approach, they target a total of 101 differentially expressed genes. Our results suggest that a lack of epoxidase, besides affecting JH synthesis, results in the diminishing of JH signalling that have significant effects on Ae. aegypti CA-CC transcriptome profiles, as well as its miRNA repertoire.
Permanent Link: https://hdl.handle.net/11104/0351361