Wits Research Institute for Malaria, School of Pathology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.
Centre for Emerging Zoonotic and Parasitic Diseases, National Institute for Communicable Diseases, a Division of the National Health Laboratory Service, Johannesburg, South Africa.
Sci Rep. 2023 Oct 5;13(1):16798. doi: 10.1038/s41598-023-43914-0.
Deaths from malaria remain staggering despite global support that drives research into new territories. One major gap is our understanding of the sexual biological aspects of the male mosquito, which maintain the vector population solidity. Although Anopheles funestus s.s. is an extremely efficient African vector, little is known about the network between its sexual physiology and gene expression. The Culicidae male's sexual maturity involves a suite of physiological changes, such as genitalia rotation that is necessary for successful mating to occur. We show that mating success is guided by genes and physiological plasticity. Transcriptome analysis between newly emerged males (immature) versus males with rotating genitalia (maturing) provides insight into possible molecular mechanisms regulating male sexual behaviour. Putative transcripts that were associated with male sexual maturation were identified and validated. The discovery of the functions of these transcripts could lead to identifying potential targets for innovative vector control interventions, and mosquito population suppression.
尽管全球范围内的支持推动了新领域的研究,但疟疾导致的死亡人数仍然惊人。一个主要的差距是我们对雄性蚊子的性生物学方面的理解,这维持了病媒种群的稳定性。虽然冈比亚按蚊 s.s. 是一种非常有效的非洲病媒,但关于其性生理学和基因表达之间的关系我们知之甚少。库蚊雄性的性成熟涉及一系列生理变化,例如生殖器的旋转,这对于成功交配是必要的。我们表明,交配成功率受到基因和生理可塑性的指导。新出现的雄性(未成熟)与生殖器旋转的雄性(成熟)之间的转录组分析提供了对调节雄性性行为的可能分子机制的深入了解。鉴定出与雄性性成熟相关的假定转录本,并对其进行了验证。这些转录本功能的发现可能导致确定创新的病媒控制干预措施和蚊子种群抑制的潜在目标。