American lobster (Homarus americanus) immune gene expression during Aerococcus viridans var. homari challenge
Bibliographic record
Abstract
The Canadian lobster (Homarus americanus) fishery is Canada's most economically significant fishing industry and is a critical component of many rural Atlantic Canadian communities. Aerococcus viridans var. homari is a Gram-positive bacterium that can cause mortalities in wild and live-stocked lobsters. We used an RNA sequencing (RNA-seq) approach to examine the expression of more than 29,000 hepatopancreatic genes in H. americanus during an A. viridans var. homari infection challenge to determine how lobster immune gene expression changes during infection. The infection challenge identified 1,803 differentially expressed genes, of which at least 87 are related to immune or stress responses. Of particular note are several anti-lipopolysaccharide factors (ALFs), pentraxin serum amyloid A (SAA), lectins, Toll-like proteins, cytokines, relish, cactus, myeloid differentiation factor, and genes related to antioxidant defence, coagulation, and hyperglycemic hormone regulation. Compared to a previous study using microarray technology, our RNA-seq approach uncovered a broader array of immune genes that were previously undetected in H. americanus. This study provides additional evidence that ALFs and SAA-5-like proteins are critical players in immune defence. Differential expression of ALFs and lectin genes may indicate a tailored response specific to A. viridans var. homari, highlighting the complexity of the immune system of lobster in recognizing and responding to specific pathogens.
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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 | 0.002 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.003 | 0.001 |
| Bibliometrics | 0.002 | 0.001 |
| Science and technology studies | 0.001 | 0.003 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.002 | 0.001 |
| Research integrity | 0.001 | 0.003 |
| Insufficient payload (model declined to judge) | 0.002 | 0.001 |
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; both teacher heads agree on what is shown here.
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".