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2.
Biochem Mol Biol Educ ; 48(4): 391-403, 2020 07.
Artículo en Inglés | MEDLINE | ID: mdl-32294307

RESUMEN

Metagenomics is a tool that enables researchers to study genetic material recovered directly from microbial communities or microbiomes. Fueled by advances in sequencing technologies, bioinformatics tools, and sample processing, metagenomics studies promise to expand our understanding of human health and the use of microorganisms for agriculture and industry. Therefore, teaching students about metagenomics is crucial to prepare them for modern careers in the life sciences. However, the increasing number of different approaches makes teaching metagenomics to students a challenge. This 8-week metagenomics laboratory course has the objective of introducing upper-level undergraduate and graduate students to strategies for designing, executing, and analyzing microbiome investigations. The laboratory component begins with sample processing, library preparation, and submission for high-throughput sequencing before transitioning to computer-based activities, which include an introduction to several fundamental computational metagenomics tools. Students analyze their sequencing results and deposit findings in sequence databases. The laboratory component is complemented by a weekly lecture, where active learning sessions promote retrieval practice and allow students to reflect on and diagram processes performed in the laboratory. Attainment of student learning outcomes was assessed through the completion of various course assignments: laboratory reports, presentations, and a cumulative final exam. Further, students' perceptions of their gains relevant to the learning outcomes were evaluated using pre- and postcourse surveys. Collectively, these data demonstrate that this course results in the attainment of the learning outcomes and that this approach provides an adaptable way to expose students to the cutting-edge field of metagenomics.


Asunto(s)
Bacterias/genética , Biología Computacional/métodos , Metagenómica/educación , Microbiota , Aprendizaje Basado en Problemas/métodos , ARN Bacteriano/análisis , ARN Ribosómico 16S/análisis , Bacterias/clasificación , Bacterias/aislamiento & purificación , Genoma Bacteriano , Humanos , Metagenómica/métodos , ARN Bacteriano/genética , ARN Ribosómico 16S/genética , Microbiología del Suelo , Estudiantes
3.
J Hered ; 111(2): 227-236, 2020 04 02.
Artículo en Inglés | MEDLINE | ID: mdl-32037446

RESUMEN

The increasing availability and complexity of next-generation sequencing (NGS) data sets make ongoing training an essential component of conservation and population genetics research. A workshop entitled "ConGen 2018" was recently held to train researchers in conceptual and practical aspects of NGS data production and analysis for conservation and ecological applications. Sixteen instructors provided helpful lectures, discussions, and hands-on exercises regarding how to plan, produce, and analyze data for many important research questions. Lecture topics ranged from understanding probabilistic (e.g., Bayesian) genotype calling to the detection of local adaptation signatures from genomic, transcriptomic, and epigenomic data. We report on progress in addressing central questions of conservation genomics, advances in NGS data analysis, the potential for genomic tools to assess adaptive capacity, and strategies for training the next generation of conservation genomicists.


Asunto(s)
Conservación de los Recursos Naturales , Genética de Población/educación , Metagenómica/educación , Teorema de Bayes , Epigenómica , Genotipo , Secuenciación de Nucleótidos de Alto Rendimiento , Densidad de Población , Transcriptoma
4.
BMC Genomics ; 14: 600, 2013 Sep 04.
Artículo en Inglés | MEDLINE | ID: mdl-24007365

RESUMEN

BACKGROUND: The revolution in DNA sequencing technology continues unabated, and is affecting all aspects of the biological and medical sciences. The training and recruitment of the next generation of researchers who are able to use and exploit the new technology is severely lacking and potentially negatively influencing research and development efforts to advance genome biology. Here we present a cross-disciplinary course that provides undergraduate students with practical experience in running a next generation sequencing instrument through to the analysis and annotation of the generated DNA sequences. RESULTS: Many labs across world are installing next generation sequencing technology and we show that the undergraduate students produce quality sequence data and were excited to participate in cutting edge research. The students conducted the work flow from DNA extraction, library preparation, running the sequencing instrument, to the extraction and analysis of the data. They sequenced microbes, metagenomes, and a marine mammal, the Californian sea lion, Zalophus californianus. The students met sequencing quality controls, had no detectable contamination in the targeted DNA sequences, provided publication quality data, and became part of an international collaboration to investigate carcinomas in carnivores. CONCLUSIONS: Students learned important skills for their future education and career opportunities, and a perceived increase in students' ability to conduct independent scientific research was measured. DNA sequencing is rapidly expanding in the life sciences. Teaching undergraduates to use the latest technology to sequence genomic DNA ensures they are ready to meet the challenges of the genomic era and allows them to participate in annotating the tree of life.


Asunto(s)
Curriculum , Secuenciación de Nucleótidos de Alto Rendimiento/métodos , Metagenómica/educación , Análisis de Secuencia de ADN/métodos , Animales , Genoma Bacteriano , Metagenómica/métodos , Control de Calidad , Leones Marinos/genética , Estudiantes , Enseñanza , Universidades
5.
DNA Cell Biol ; 31(6): 968-73, 2012 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-22339268

RESUMEN

Traditional undergraduate science classes often include a laboratory component aimed at enabling the students to experience the classroom topics firsthand. Typically, these experiments are chosen because they have known outcomes that will clearly demonstrate particular aspects of scientific theory. While this approach has its benefits in skill development and concept reinforcement, the lack of novelty inherent in repeating experiments that have been repeated for many years does not accurately convey the feeling of true scientific discovery to the students. In this work, we have designed and implemented a series of experiments into an undergraduate biochemistry curriculum that incorporates the opportunity for scientific discovery, while simultaneously creating an environment for learning routine laboratory techniques. Through this set of experiments, students enrolled in the course were successful in identifying and beginning to characterize an unknown bacterial gene that confers increased tolerance to triclosan on its host.


Asunto(s)
Bioquímica/educación , Escherichia coli/efectos de los fármacos , Laboratorios , Metagenómica/educación , Oxidorreductasas/genética , Triclosán/farmacología , Universidades , Antibacterianos/farmacología , Escherichia coli/enzimología , Escherichia coli/genética , Investigación/educación
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