Primary structure and expression of vitellogenin A and vitellogenin B in the desert locust, <i>Schistocerca gregaria</i> (Orthoptera: Acrididae)
Bibliographic record
Abstract
Abstract Vitellogenins are the major yolk protein precursors found throughout the animal kingdom. In insects, the primary structures of vitellogenins have been determined in species from most major orders, except for Orthoptera, where only partial sequences have been reported. We amplified and sequenced the complete complementary DNA for two vitellogenins from the desert locust, Schistocerca gregaria (Orthoptera: Acrididae), which code for vitellogenin A and vitellogenin B, two proteins of approximately 200 kDa each. Both proteins are highly expressed at similar rates in adult females only, and their expression can be completely abolished by RNA interference–mediated silencing of the juvenile hormone receptor, methoprene-tolerant (Met). Homologous sequences were inferred from the genome of Locusta migratoria (Orthoptera: Acrididae), yielding complete coding sequences considerably larger than previously published. Vitellogenin A and vitellogenin B from S. gregaria are highly similar to their respective homologues from L. migratoria but show relatively low similarity between each other, suggesting that these genes originated from a common ancestor long before these species diverged.
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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".