NOTE: Bracken is compatible with both Kraken 1 and Kraken 2. Combined with the Kraken classifier,īracken produces accurate species- and genus-level abundanceĮstimates even when a sample contains two or more near-identical species.
Species level, the genus level, or above. Information with the assignments for a particular sample to estimate abundance at the We use the Krakenĭatabase itself to derive probabilities that describe how much sequenceįrom each genome is identical to other genomes in the database, and combine this Originating from each species present in a sample.Ĭlassifies reads to the best matching location in the taxonomic tree,īut does not estimate abundances of species. Braken uses the taxonomy labels assigned by Kraken, a highlyĪccurate metagenomics classification algorithm, to estimate the number of reads Of Abundance with KrakEN) is a highly accurate statistical method thatĬomputes the abundance of species in DNA sequences from a
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