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| Jovaru || [http://www.garshol.priv.no/download/farmhouse/kveik.html#kv32 32] || [[Omega Yeast Labs]] || Jovaru™ || This strain tests positive for the STA1 gene, an indicator of [[Saccharomyces#Saccharomyces_cerevisiae_var._diastaticus|''Saccharomyces cerevisiae'' var. ''diastaticus'']]. This strain may have the ability to metabolize dextrins over time, resulting in higher than expected attenuation. JOVARU™ is an ALDONA UDRIENĖ™ yeast strain that originates from the famous JOVARU™ Brewery that has been in operation since the mid-19th century <ref>[https://omegayeast.com/yeast/lithuanian-ales/jovaru-lithuanian-farmhouse Jovaru Lithuanian Farmhouse Yeast. Omeaga Yeast Labs website. Retrieved 05/16/2019.]</ref>.
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| Marina || [http://www.garshol.priv.no/download/farmhouse/kveik.html#kv39 39] || [[Mainiacal Yeast]] || Farmhouse - Marina || Russian landrace yeast; sold in liquid form only, does not survive drying <ref>[https://www.instagram.com/p/B3C0PR2lvIO/?igshid=samvy0ns3sz7 Mainiacal Yeast Instagram. 09/30/2019. Retrieved 09/30/2019.]</ref>. POF+.
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| Rima || [http://www.garshol.priv.no/download/farmhouse/kveik.html#kv40 40] || [[Mainiacal Yeast]] || Farmhouse - Rima || Russian landrace yeast; sold in liquid form only, does not survive drying <ref>[https://www.instagram.com/p/B3C0PR2lvIO/?igshid=samvy0ns3sz7 Mainiacal Yeast Instagram. 09/30/2019. Retrieved 09/30/2019.]</ref>. POF+.
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===Bjarne Muri's Olden Yeast===
It was initially found by Krogerus et al. (2018) that the single Muri strain recovered by Bjarne Muri is a hybrid of ''S. cerevisiae'' and ''S. uvarum'', and is most closely related to the beer 2 yeast group (kveik falls into the Beer 1 group; see [[Saccharomyces#History_of_Domestication|History of Domestication]] for more information on the beer yeast genetic groups) <ref>[https://www.frontiersin.org/articles/10.3389/fmicb.2018.02253/full A Unique ''Saccharomyces cerevisiae'' × ''Saccharomyces uvarum'' Hybrid Isolated From Norwegian Farmhouse Beer: Characterization and Reconstruction. Kristoffer Krogerus, Richard Preiss, Brian Gibson. 2018. DOI: https://doi.org/10.3389/fmicb.2018.02253.]</ref>. Unlike kveik, Muri is POF+ (phenolic) and STA1 (diastaticus). Krogerus then performed full genome sequencing on the Muri strain and discovered that it is a genetic match for WLP351 Bavarian Weizen yeast. This strain is either a contaminant (most likely) or the original yeast used by the Muri family was the same as the WLP351 Bavarian Weizen strain. Krogerus's finding was independently replicated by [https://www.nature.com/articles/s41559-019-0998-8 Langdon et al. (2019)] <ref>[https://www.nature.com/articles/s41559-019-0998-8 Fermentation innovation through complex hybridization of wild and domesticated yeasts. Quinn K. Langdon, David Peris, EmilyClare P. Baker, Dana A. Opulente, Huu-Vang Nguyen, Ursula Bond, Paula Gonçalves, José Paulo Sampaio, Diego Libkind & Chris Todd Hittinger. Nature Ecology & Evolution (2019).]</ref><ref>[https://www.facebook.com/groups/MilkTheFunk/permalink/2995445813816946/?comment_id=2995899037104957 Richard Preiss. Milk The Funk Facebook group thread on new studies of lager hybrid yeast, including "Muri" identification. 10/22/2019.]</ref>.
See [https://beer.suregork.com/?p=4094 Kristoffer Krogerus's blog post] that goes into detail on his findings, as well as his [https://www.facebook.com/groups/MilkTheFunk/permalink/2906356522725876/ Q&A post on MTF].
Background information:
* [http://www.garshol.priv.no/blog/408.html Updates Details on the Muri identification by Lars Marius Garshol.]
* [https://www.facebook.com/groups/MilkTheFunk/permalink/2292973420730859/ MTF post by Kristoffer Krogerus that explains their 2018 study that discovered that Muri is a hybrid yeast that is not genetically related to other kveik strains.]