Dermacentor albipictus is a one-host tick broadly distributed across North America. There are two easily recognizable color variants - ornate and inornate/brown - that have been taxonomically synonymized. Based on mt-cox1 and mt-16S data, there is also evidence for two genetic lineages which do not match the color variants. We present for the first time the complete mitochondrial genomes of the two color variants of D. albipictus including representatives of each lineage. The AT-rich genomes are 14,822 bp - 14,865 bp in length and contain 13 protein coding genes, 2 ribosomal RNA genes and 22 transfer RNA genes, arranged in the conserved type 3 metastriate mitochondrial genome order. The overall differences were 10.66% between the mitochondrial genomes of D. albipictus ornate variant lineage 1 and lineage 2, 10.51% between lineage 1 and inornate/brown variant and 5.87% between lineage 2 and inornate/brown variant. The inornate/brown variant did not form a separate lineage and all inornate isolates were found to belong to lineage 2. Ornate variant isolates occurred in both lineage 1 and 2. The high divergence of the mitochondrial genome suggests that D. albipictus may represent a species complex. Other barcoding genes that may help capture the genetic differences between color and lineage variants include nad1, nad2, nad5, cox1 and atp8 loci. The mtDNA data generated in this study are available in GenBank (Accession numbers: OM678457 - OM678459 and ON032564 - ON032573) for future studies on tick taxonomy, phylogenetics and molecular epidemiology.
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http://dx.doi.org/10.1016/j.ttbdis.2022.102038 | DOI Listing |
Adv Biotechnol (Singap)
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MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, Guangdong, China.
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Department of Biology, Colorado State University, Fort Collins, CO, USA.
Plant mitochondrial genomes (mitogenomes) experience remarkable levels of horizontal gene transfer (HGT), including the recent discovery that orchids anciently acquired DNA from fungal mitogenomes. Thus far, however, there is no evidence that any of the genes from this interkingdom HGT are functional in orchid mitogenomes. Here, we applied a specialized sequencing approach to the orchid Corallorhiza maculata and found that some fungal-derived tRNA genes in the transferred region are transcribed, post-transcriptionally modified, and aminoacylated.
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January 2025
ZooLab, Department of Biodiversity and Ecology, Plant Science and Biodiversity Centre, Slovak Academy of Sciences, Bratislava, Slovakia.
Mitochondrial genomes are a rich source of data for various downstream analyses such as population genetics, phylogeny, and systematics. Today it is possible to assemble rapidly large numbers of mitogenomes, mainly employing next-generation sequencing and third-generation sequencing. However, verification of the correctness of the generated sequences is often lacking, especially for noncoding, length-variable parts.
View Article and Find Full Text PDFWellcome Open Res
January 2025
Independent researcher, Telford, England, UK.
We present a genome assembly from an individual male specimen of (leafhopper; Arthropoda; Insecta; Hemiptera; Cicadellidae). The genome sequence has a total length of 1,819.90 megabases.
View Article and Find Full Text PDFSci Rep
January 2025
Guangzhou Municipal and Guangdong Provincial Key Laboratory of Protein Modification and Disease, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, 511436, China.
Hepatocellular carcinoma (HCC) is the most prevalent form of primary liver cancer, notoriously refractory to conventional chemotherapy. Historically, sulfane sulfur-based compounds have been explored for the treatment of HCC, but their efficacy has been underwhelming. We recently reported a novel sulfane sulfur donor, PSCP, which exhibited improved chemical stability and structural malleability.
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