Nuclear rDNA sequences from<i>Ballia prieurii</i>support recognition of<i>Balliopsis</i>gen. nov. in the Batrachospermales (Florideophyceae, Rhodophyta)
Bibliographic record
Abstract
Nuclear small-subunit and partial large-subunit rDNA sequences were determined for the freshwater rhodophyte species Ballia prieurii, from northern Brazil, to assess its relationship to the marine species that have recently been transferred to a new order, Balliales, in the Florideophyceae. Ballia prieurii unequivocally associated with species of the freshwater order Batrachospermales, rather than with the marine Balliales, in all molecular analyses. In addition to habitat, asexual reproduction by monosporangia in the freshwater species of Ballia is consistent with inclusion in the Batrachospermales and has not been reported for any marine Ballia species, which reproduce exclusively by asexual tetrasporangia. As B. prieurii is distinct in morphological and molecular features from all other members of Batrachospermales, a new genus Balliopsis G.W. Saunders & Necchi gen. nov. is proposed to accommodate this species, which becomes Balliopsis prieurii (Kützing) G.W. Saunders & Necchi comb. nov. Previously published morphological and anatomical observations indicate that a second freshwater species of Ballia, B. pinnulata, is clearly related to Balliopsis prieurii and it too is transferred to the new genus. The familial affinities of Balliopsis are discussed, but Balliopsis is left as a genus Incertae sedis within the Batrachospermales.
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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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.014 | 0.001 |
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".