Molecular Evidence for Bidirectional Hybrid Origin and Hippophae rhamnoides ssp. sinensis as the Mainly Maternal Plant of the Diploid Hybrid H. goniocarpa(Elaeagnaceae)
Bibliographic record
Abstract
Hippophae goniocarpa is a natural hybrid species through homoploid hybridization between H. rhamnoides ssp. sinensis and H. neurocarpa distributed sympatrically. Maternally inherited cpDNA trnS-G sequence was used to detect the genetic relationship among 93 individuals of H. goniocarpa and its parent species which distributed sympatrically in Gongbeiwan and river land of Babao of Qilian,Qinghai. The results showed that H. goniocarpa and its parent species in the Gongbeiwan and river land of Babao had 12 and 7 haplotypes, respectively. H. goniocarpa shared common haplotypes with both H. rhamnoides ssp. sinensis and H. neurocarpa in the two places. Twenty-eight out of 36 individuals of H. goniocarpa shared common haplotypes with H. rhamnoides ssp. sinensis( H2,H4,H5),only two individuals shared common haplotypes with H. neurocarpa at Gongbeiwan. Seven out of 10 individuals of H. goniocarpa shared common haplotypes with H. rhamnoides ssp. sinensis( H4),3 out of 10 individuals of H. goniocarpa shared common haplotypes with H. neurocarpa( H7) at river land of Babao. Phylogenetic tree of H. goniocarpa and its parent species from two regions was constructed by Maximum Parsimony(MP),and the results showed that most individuals of H. goniocarpa were clustered together with H. rhamnoides ssp. sinensis. In addition,6 individuals of H. goniocarpa with 4 typical haplotypes(H3,H7,H8 and H9)were also clustered with H. rhamnoides ssp. sinensis. The bidirectional hybrid origin of H. goniocarpa is further proved here and H. rhamnoides ssp. sinensis is found to be the main maternal source.
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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 | 0.000 | 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) | 0.001 | 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".