Introduction of East African Diploid Cotton Genetic Variation Into Upland Cotton
Bibliographic record
Abstract
The African wild diploid cotton species, Gossypium longicalyx Hutch. & Lee. (2n = 2x = 26, F1F1) presents many valuable traits that can be introduced into Gossypium hirsutum to enhance its narrow genetic basis. To assess the possibility of using monosomic alien addition line (MAAL) of G. longicalyx in G. hirsutum in an interspecific breeding program, the progeny of ten MAALs was characterized. Chromosome counting allowed to identify the addition of single alien chromosome in 9 of the 10 lines studied. The analysis of the chromosome configurations at metaphase showed the presence of multivalent associations involving the supernumerary chromosome of G. longicalyx, indicating the occurrence of recombination between the G. longicalyx and G. hirsutum chromosomes. The use of microsatellite markers provided evidence of multiple introgressions of G. longicalyx DNA in the recipient species. It appeared from the SSR analysis that only four different supernumerary alien chromosomes were present in the studied MAALs. These results confirm the low genetic distance existing between the chromosomes of G. longicalyx and those of Ah sub-genome. They highlight the opportunities and constraints associated with the use of G. longicalyx in a breeding program of upland cotton.
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.002 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.001 | 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".