Testing generic limits in Cercidoideae (Leguminosae): Insights from plastid and duplicated nuclear gene sequences
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
Abstract Reconstructing the phylogenetic history of species in large taxonomic groups remains a challenge despite ever increasing access to molecular data. In subfamily Cercidoideae (Leguminosae), the large pantropical Bauhinia s.l. (~380 spp.) is never supported as monophyletic, but the generic boundaries and the number of genera that should be recognised remains a challenging taxonomic and phylogenetic question. Here we reconstruct the phylogeny of Bauhinia s.l. and related genera in the subfamily using sequences obtained from five loci ( matK , trnL‐F , Leafy , and two previously undetected duplicate copies of Legcyc ), which we analyse individually and in a concatenated matrix (excluding Leafy ). The individual and concatenated analyses generally support two distinct lineages in Bauhinia s.l.: (1) the Bauhinia clade, containing Bauhinia s.str., Brenierea , and Piliostigma ; and (2) the Phanera clade, containing Barklya , Cheniella , Gigasiphon , Lasiobema , Lysiphyllum , Phanera s.str., Schnella , and Tylosema . Based on our analyses, we recognise 14 genera in Cercidoideae. We resurrect the genus Tournaya from Gigasiphon , and synonymise the Asian segregate genus Lasiobema back into Phanera s.str. Our analyses reveal a clear gene duplication event in CYCLOIDEA that is shared by all Cercidoideae excluding the sister lineage to the subfamily, Cercis , supporting recent hypotheses for a whole genome duplication in all Cercidoideae except this genus.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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 it