Biotechnology Institute and Bioscience Institute, Sao Paulo State University UNESP, Botucatu 18618-689, Brazil.
Departamento de Epidemiologia, Faculdade de Saúde Pública, Universidade de São Paulo, São Paulo 05508-060, Brazil.
Genes (Basel). 2021 Oct 25;12(11):1693. doi: 10.3390/genes12111693.
Mosquito susceptibility to spp. infection is of paramount importance for malaria occurrence and sustainable transmission. Therefore, understanding the genetic features underlying the mechanisms of susceptibility traits is pivotal to assessing malaria transmission dynamics in endemic areas. The aim of this study was to investigate the susceptibility of -the dominant malaria vector in Brazil-to spp. using a reduced representation genome-sequencing protocol. The investigation was performed using a genome-wide association study (GWAS) to identify mosquito genes that are predicted to modulate the susceptibility of natural populations of the mosquito to infection. After applying the sequence alignment protocol, we generated the variant panel and filtered variants; leading to the detection of 202,837 SNPs in all specimens analyzed. The resulting panel was used to perform GWAS by comparing the pool of SNP variants present in infected with spp. with the pool obtained in field-collected mosquitoes with no evidence of infection by the parasite (all mosquitoes were tested separately using RT-PCR). The GWAS results for infection status showed two statistically significant variants adjacent to important genes that can be associated with susceptibility to infection: Cytochrome P450 () and This study provides relevant knowledge on malaria transmission dynamics by using a genomic approach to identify mosquito genes associated with susceptibility to infection in in western Amazonian Brazil.
蚊虫对感染的易感性对疟疾的发生和持续传播至关重要。因此,了解易感性特征背后的遗传特征对于评估流行地区的疟疾传播动态至关重要。本研究旨在使用简化基因组测序方案研究巴西主要疟疾传播媒介对感染的易感性。该研究采用全基因组关联研究(GWAS)来鉴定预测调节蚊虫自然种群对感染易感性的蚊子基因。在应用序列比对方案后,我们生成了变异面板并对变体进行了过滤;在所有分析的标本中检测到 202,837 个 SNPs。使用该面板,通过比较感染 spp.的蚊子与未感染寄生虫(所有蚊子均使用 RT-PCR 单独测试)的蚊子中存在的 SNP 变体池,进行 GWAS。感染状态的 GWAS 结果显示,两个与重要基因相邻的统计上显著的变体可能与感染的易感性相关:细胞色素 P450 () 和。本研究通过基因组方法鉴定与巴西亚马逊西部感染 spp.的蚊子易感性相关的蚊子基因,为疟疾传播动态提供了相关知识。