The yeast genus Tortispora gen. nov., description of Tortispora ganteri sp. nov., Tortispora mauiana f.a., sp. nov., Tortispora agaves f.a., sp. nov., Tortispora sangerardonensis f.a., sp. nov., Tortispora cuajiniquilana f.a., sp. nov., Tortispora starmeri f.a., sp. nov. and Tortispora phaffii f.a., sp. nov., reassignment of Candida caseinolytica to Tortispora caseinolytica f.a., comb. nov., emendation of Botryozyma, and assignment of Botryozyma, Tortispora gen. nov. and Trigonopsis to the family Trigonopsidaceae fam. nov.
Bibliographic record
Abstract
We describe the yeast genus Tortispora gen. nov., an early-diverging lineage in the Saccharomycetales that displays the formation of helical ascospores. The genus is based on 16 strains resembling Candida caseinolytica that were isolated from necrotic plant tissue in warm regions of the New World. Based on sequences of the D1/D2 domains of the nuclear large subunit rRNA gene, as well as other data, the strains are assigned to eight distinct species. The species are nutritionally specialized and share the unusual ability to hydrolyse casein and to grow on 1-butanol as sole carbon source. One species of the proposed new genus produces a simple ascus with a helical ascospore, whereas other species of the clade have failed to form ascospores. All species in the clade, including C. caseinolytica, are assigned to Tortispora gen. nov. The new binomials are Tortispora ganteri sp. nov., type species of the genus (SUB 86-469.5(T) = CBS 12581(T) = NRRL Y-17035(T)), Tortispora caseinolytica f.a., comb. nov. (UCD-FST 83-438.3(T) = CBS 7781(T) = NRRL Y-17796(T)), Tortispora mauiana f.a., sp. nov. (UWOPS 87-2430.3(T) = CBS 12803(T) = NRRL Y-48832(T)), Tortispora agaves f.a., sp. nov. (UWOPS 94-257.6(T) = CBS 12794(T) = NRRL Y-63662(T)), Tortispora sangerardonensis f.a., sp. nov. (UWOPS 00-157.1(T) = CBS 12795(T) = NRRL Y-63663(T)), Tortispora cuajiniquilana f.a., sp. nov. (UWOPS 99-344.4(T) = CBS 12796(T) = NRRL Y-63664(T)), Tortispora starmeri f.a., sp. nov. (G 91-702.5(T) = CBS 12793(T) = NRRL Y-63665(T)) and Tortispora phaffii f.a., sp. nov. (UWOPS 91-445.1(T) = CBS 12804(T) = NRRL Y-48833(T)). In addition, species formerly assigned to the genus Ascobotryozyma are reassigned to the genus Botryozyma. The genera Trigonopsis, Botryozyma and Tortispora are assigned to the family Trigonopsidaceae fam. nov.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.004 | 0.001 |
| Meta-epidemiology (narrow) | 0.003 | 0.003 |
| Meta-epidemiology (broad) | 0.006 | 0.002 |
| Bibliometrics | 0.002 | 0.002 |
| Science and technology studies | 0.001 | 0.003 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.003 | 0.002 |
| Research integrity | 0.002 | 0.002 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; both teacher heads agree on what is shown here.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".