Molecular systematics of <i>Cuscuta</i> subgenus <i>Monogynella</i> (Convolvulaceae) based on plastid and nuclear sequences
Bibliographic record
Abstract
Abstract Cuscuta (dodders) consists of ~200 species circumscribed into four subgenera ( C. subg. Cuscuta , subg. Grammica , subg. Monogynella , subg. Pachystigma ) and is the only parasitic genus in Convolvulaceae (the morning‐glory family). This genus shows a significant diversity in plastid functionality and represents a rare mixotrophic system within parasitic plants, where different trophic modes can be found at a lower phylogenetic level. Cuscuta subg. Monogynella contains chlorophyllous hemiparasitic species distributed primarily across Eurasia, with Central Asia as its center of diversity. Apart from a few placeholders in broad‐scale phylogenies, this group has not been extensively sampled and studied taxonomically, morphologically, or geographically. Our paper presents the first in‐depth phylogeny for C. subg. Monogynella based on plastid trnL‐F and nuclear ITS sequence regions. Our wide taxon sampling included 12 out of the 15 presently recognized species, with specimens from across their geographic distribution. Our analyses show highly congruent trees, forming similar clades using both plastid and nuclear markers, with no indication of hybridization. Most of the species, represented by multiple individuals from various geographic regions, have been found reciprocally monophyletic or paraphyletic. One individual from south‐west China formed its own separate lineage, with substantial branch length subtending it, and given its distinct geographic distribution, likely belongs to a new species.
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.
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 | 0.000 | 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
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".