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[https://www.frontiersin.org/articles/10.3389/fmicb.2020.00637 Colomer et al (2020)] surveyed the whole genomes of 64 strains of ''B. bruxellensis'', 14 strains of ''B. anomalus'', 3 strains of ''B. custersianus'', and 3 strains of ''B. naardenensis''. They broke the ''B. bruxellensis'' beer group into two clades: a "farmhouse" clade which comprised of strains of ''B. bruxellensis'' isolated from commercial craft beer breweries, and a "lambic" clade which comprised of strains isolated from spontaneously fermented Belgian lambic beers. There was also a subdivision of the lambic clade which comprised of strains of ''B. bruxellensis'' identified with various natural origins; ethanol plants, barrel-aged beers, and matured wines. This subclade was called "wild/wood" by the researchers. See [https://www.frontiersin.org/files/Articles/495404/fmicb-11-00637-HTML-r1/image_m/fmicb-11-00637-g002.jpg Figure 2 (family tree)] from the study <ref name="colomer_2020_genome">[https://www.frontiersin.org/articles/10.3389/fmicb.2020.00637/full Assessing Population Diversity of Brettanomyces Yeast Species and Identification of Strains for Brewing Applications. Marc Serra Colomer, Anna Chailyan, Ross T. Fennessy, Kim Friis Olsson, Lea Johnsen, Natalia Solodovnikova and Jochen Forster. 2020. DOI: https://doi.org/10.3389/fmicb.2020.00637.]</ref>.
Science has also begun to explore targeted gene manipulation of ''B. bruxellensis'' via CRISPR, which will eventually lead to a better understanding of the ''Brettanomyces bruxellensis'' genome <ref>[https://link.springer.com/article/10.1007/s00253-020-10750-5 Targeted gene deletion in Brettanomyces bruxellensis with an expression-free CRISPR-Cas9 system. Cristian Varela, Caroline Bartel, Cristobal Onetto, Anthony Borneman. Applied Microbiology and Biotechnology. 2020.]</ref>.
===Morphology===