نتایج جستجو برای: ژن coi
تعداد نتایج: 19528 فیلتر نتایج به سال:
Introduction Aquatic oligochaetes represent valuable indicators of the quality of sediments of watercourses and lakes, but their difficult identification based on morphological criteria compromises their more common use for eco-diagnostic analyses. This issue could be overcome by using DNA barcodes for species identification. A 10% threshold of cytochrome c oxidase (COI) divergence was proposed...
تاکنون آفات متعددی از روی درختان زبانگنجشگ گزارش شده و زنبورهای برگخوار زبانگنجشک از جنس Tomostethus در زیر خانواده Blennocampinae یکی از آفات مهم این درخت است بهطوری که مواردی از طغیان آن در اروپا گزارش شده است. پژوهش حاضر در بهار سال 1396 طی طغیان شدید زنبور برگخوار زبانگنجشک در استان آذربایجان غربی، مناطق جنگلی زاگرس شمالی انجام شد. شناسایی نمونههای جمعآوری_شده زنبور با روش ...
To aid in identifying key predators of Proconiini sharpshooter species present in California, we developed and tested molecular diagnostic markers for the glassy-winged sharpshooter, Homalodisca coagulata (Say), and smoke-tree sharpshooter, Homalodisca liturata (Ball) (Homoptera: Cicadellidae). Two different types of markers were compared, those targeting single-copy sequence characterized ampl...
Wolbachia is a genus of bacterial endosymbionts that impacts the breeding systems of their hosts. Wolbachia can confuse the patterns of mitochondrial variation, including DNA barcodes, because it influences the pathways through which mitochondria are inherited. We examined the extent to which these endosymbionts are detected in routine DNA barcoding, assessed their impact upon the insect sequen...
Introduction The Community of Inquiry (CoI) framework was developed as a theoretical framework to support the practice and research of online learning. Garrison, Anderson, and Archer (2000) theorized that meaningful learning online takes place in a CoI made of teachers and students, through the interaction of three core elements: teaching presence, social presence, and cognitive presence. Over ...
Another approach to assessing the burden of disease is to estimate the associated “cost of illness” (COI). Studies of COI provide a framework for expressing in dollar terms the multidimensional impact of a health problem. Typically, a COI study of a particular health problem includes estimates of the costs of health care services, losses in productivity from illness and premature death, and oth...
Identification of insect species is an important task in forensic entomology. For more convenient species identification, the nucleotide sequences of cytochrome c oxidase subunit I (COI) gene have been widely utilized. We analyzed full-length COI nucleotide sequences of 10 Muscidae and 6 Sarcophagidae fly species collected in Korea. After DNA extraction from collected flies, PCR amplification a...
With millions of species and their life-stage transformations, the animal kingdom provides a challenging target for taxonomy. Recent work has suggested that a DNA-based identification system, founded on the mitochondrial gene, cytochrome c oxidase subunit 1 (COI), can aid the resolution of this diversity. While past work has validated the ability of COI sequences to diagnose species in certain ...
Anopheles punctimacula s.l. is a regional malaria vector in parts of Central America, but its role in transmission is controversial due to its unresolved taxonomic status. Two cryptic species, An. malefactor and An. calderoni, have been previously confused with this taxon, and evidence for further genetic differentiation has been proposed. In the present study we collected and morphologically i...
Aim: The aim of this study was to assess the biodiversity and community structure of Swedish meiofaunal eukaryotes using metabarcoding. To validate the reliability of the metabarcoding approach, we compare the taxonomic resolution obtained using the mitochondrial cytochrome oxidase 1 (COI) ‘mini-barcode’ and nuclear 18S small ribosomal subunit (18S) V1-V2 region, with traditional morphology-bas...
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