Analyses of Thinopyrum bessarabicum, T. elongatum, and T. junceum chromosomes using EST-SSR markers
Bibliographic record
Abstract
Wild Thinopyrum grasses are important gene pools for forage and cereal crops. Knowledge of their chromosome organizations is pivotal for efficient utilization of this important gene pool in germplasm enhancement programs. Expressed sequence tags derived simple sequence repeat (EST-SSR) markers for Thinopyrum bessarabicum, T. elongatum, and T. junceum chromosomes were identified among amplicons produced from three series of wheat-Thinopyrum addition lines using 193 primer pairs designed from the Leymus EST unigenes. The homology of T. junceum chromosomes in 13 wheat addition lines was tentatively established to reveal that homologous groups 3, 4, 5, 6, and 7 were represented by HD3515, HD3505, AJDAj11, AJDAj1, and HD3508, whereas groups 1 and 2 were represented by AJADj7-AJDAj9 and AJDAj2-AJDAj4, respectively. AJDAj5 and AJDAj6 had complexly reconstituted T. junceum chromosomes that might have resulted from fusion or translocations of large chromosomal segments from two or more chromosomes, that is (1+5) and (2+5+1), respectively. The identified EST-SSR markers will be useful in comparative gene mapping, chromosome tracing, taxonomic studies, gene introgression, and cultivar identification.
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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 | 0.000 | 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".