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[https://www.whitelabs.com/yeast-bank/wlp051-california-v-ale-yeast WLP051 California V Ale] yeast is also ''S. pastorianus''. Recent gene sequencing / PCR work has led to it being re-classified as a ''S. pastorianus'' yeast, though it has been used successfully for American-style Ale production.
Laboratory hybridization between different strains of ''S. cerevisiae'' and ''S. eubayamus'' strains from Patagonia has created new lager strains that have better fitness under fermentation, better maltotriose/maltose utilization, and fermentation capacity. These new strains offer more options to brewers who want to brew with lager yeast <ref>[https://www.biorxiv.org/content/10.1101/2024.01.29.577692v1 Wild Patagonian yeast improve the evolutionary potential of novel interspecific hybrid strains for Lager brewing. Jennifer Molinet, Juan P. Navarrete, Carlos A. Villarroel, Pablo Villarreal, Felipe I. Sandoval, Roberto F. Nespolo, Rike Stelkens, Francisco A. Cubillos. bioRxiv 2024.01.29.577692; doi: https://doi.org/10.1101/2024.01.29.577692.]</ref>.
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