Research Keyword: high-molecular-weight DNA

Methodology for Extracting High-Molecular-Weight DNA from Field Collections of Macrofungi

Scientists developed a practical method to extract high-quality DNA from mushrooms collected in the wild, even in remote locations without refrigeration. The technique involves preserving fresh samples in alcohol and then carefully purifying the DNA through multiple steps. This method successfully produced DNA suitable for reading the complete genetic code of 23 different fungal species, particularly those that cannot be grown in laboratories.

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Improved Extraction Methods to Isolate High Molecular Weight DNA From Magnaporthaceae and Other Grass Root Fungi for Long-Read Whole Genome Sequencing

Scientists have developed improved methods to extract high-quality DNA from pathogenic fungi, which is essential for sequencing and understanding how these fungi cause plant diseases. Two different extraction techniques were refined and tested on Magnaporthaceae fungi: one that works with small amounts of fungal material, and another that produces longer DNA strands when more material is available. The key to success is harvesting the fungi before they accumulate dark pigments that interfere with DNA extraction. These protocols will help researchers create better genome maps of disease-causing fungi, leading to improved strategies for crop protection.

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Gapless near Telomer-to-Telomer Assembly of Neurospora intermedia, Aspergillus oryzae, and Trichoderma asperellum from Nanopore Simplex Reads

Researchers developed a new method to create complete, high-quality genetic maps of fungi using a single affordable sequencing technology from Oxford Nanopore. They created an automated computer program that processes the sequencing data without human intervention and successfully assembled complete genomes for three industrially important fungal species. This breakthrough could make it much easier and cheaper for scientists to study and use fungi for producing medicines, food ingredients, and other useful compounds.

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