Project description:This study focuses on determining resistance to different pyrethroids in populations of Triatoma dimidiata of Boyacá, Colombia. To determine the possible causes of resistance, we sequenced RNA of three populations: laboratory, field, and under pressure of lambda-cyhalothrin. Transcriptomic profile analyses of T. dimidiata revealed differentially regulated genes in both the field population and in the laboratory population under pressure from lambda-cyhalothrin. Gene enrichment analysis showed positive regulation of transcripts related to detoxifying enzymes and mitochondrial proteins, suggesting a significant role in resistance.
Project description:The observation that variants regulating gene expression (expression quantitative trait loci, eQTL) are at a high frequency among SNPs associated with complex traits has made the genome-wide characterization of gene expression an important tool in genetic mapping studies of such traits. As part of a study to identify genetic loci contributing to bipolar disorder and a wide range of BP-related quantitative traits in members of 26 pedigrees from Costa Rica and Colombia, we measured gene expression in lymphoblastoid cell lines derived from 786 pedigree members. The study design enabled us to comprehensively reconstruct the genetic regulatory network in these families, provide estimates of heritability, identify eQTL, evaluate missing heritability for the eQTL, and quantify the number of different alleles contributing to any given locus.