Genome sequences of two isolates of the yeast Candida zeylanoides: UCD849 from soil in Ireland, and AWD from an African wild dog.

We report genome sequences of two new isolates of the budding yeast Candida zeylanoides. Strain UCD849 from soil in Ireland was assembled into eight complete chromosomes. Strain AWD from an African Wild Dog in a US zoo was sequenced to draft level. The assemblies are 10.6 Mb and 99.57% identical.

Identification of European isolates of the lager yeast parent Saccharomyces eubayanus.

Lager brewing first occurred in Bavaria in the 15th century, associated with restrictions of brewing to colder months. The lager yeast, Saccharomyces pastorianus, is cold tolerant. It is a hybrid between Saccharomyces cerevisiae and Saccharomyces eubayanus, and has been found only in industrial settings. Natural isolates of S. eubayanus were first discovered in Patagonia 11 years ago. They have since been isolated from China, Tibet, New Zealand, and North America, but not from Europe. Here, we describe the first European strains UCD646 and UCD650, isolated from a wooded area on a university campus in Dublin, Ireland. We generated complete chromosome level assemblies of both genomes using long- and short-read sequencing. The UCD isolates belong to the Holarctic clade. Genome analysis shows that isolates similar to the Irish strains contributed to the S. eubayanus component of S. pastorianus, but isolates from Tibet made a larger contribution.

Draft Genome Sequence of the Yeast Blastobotrys aristata Strain UCD613, Isolated from Soil in Ireland.

Blastobotrys aristata is a member of the Trichomonascaceae family in the order Saccharomycetales. Here, we present the genome sequence of B. aristata UCD613, which was isolated from soil in Dublin, Ireland. This genome is 13.3 Mb and was assembled into 4 chromosome-size scaffolds of >2.2 Mb in size plus a mitochondrial genome scaffold.

Draft Genome Sequence of the Yeast Torulaspora quercuum Strain UCD657, Isolated from Soil in Ireland.

Torulaspora quercuum is an ascomycete yeast first isolated in 2009. Here, we present the genome sequence of T. quercuum isolate UCD657, which was isolated from soil in Ireland. This genome is 10.4 Mb and was assembled into 8 chromosome-sized scaffolds of >1 Mb in size, plus a mitochondrial genome scaffold.