Allozyme diversity of two endemic<i>Petrocoptis</i>species:<i>P. montsicciana</i>and its close relative<i>P. pardoi</i>(Caryophyllaceae)
Bibliographic record
Abstract
Starch gel electrophoresis was used to evaluate the allozyme diversity, population structure, and taxonomic relationships of two closely related taxa endemic to the Iberian Peninsula: Petrocoptis montsicciana O. Bolòs & Rivas Martínez, restricted to the pre-Pyrenean belt of Catalonia and Aragon, and Petrocoptis pardoi Pau, endemic to the Bergantes River basin (Autonomous Community of Valencia). Seven populations of the two species were sampled, and 16 interpretable loci were found. Considerable polymorphism, more than expected in endemic species, was detected in both taxa. The percentage of polymorphic loci (P) when the most common allele had a frequency of <0.95, the mean number of alleles per locus (A), and the expected panmictic heterozygosity (He) were slightly higher in P. montsicciana (P = 70.3, A = 2.2 and He= 0.239) than in P. pardoi (P = 56.3, A = 1.9 and He= 0.192). Strong divergence between populations was found in both species (GST= 0.376 in P. montsicciana and GST= 0.354 in P. pardoi) because of the geographic isolation of populations and limited seed and pollen dispersal. Most loci showed deviations from the Hardy-Weinberg equilibrium, probably as a consequence of genetic substructuring of populations. Low germination and renewal rates, and some anthropogenic activities such as road work, climbing, and massive collection are the main threats to these species.Key words: Petrocoptis montsicciana, Petrocoptis pardoi, Caryophyllaceae, allozyme electrophoresis, genetic diversity, conservation, endemic species.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| 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) | 0.001 | 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; a candidate call from one source (direct Gemma or distilled Codex), 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".