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Record W6996899348

Study of maternal-effect genes in the nematode Caenorhabditis elegans

2003· other· fr· W6996899348 on OpenAlexvenueno aff

Bibliographic record

VenueLibrary and Archives Canada (Government of Canada) · 2003
Typeother
Languagefr
FieldBiochemistry, Genetics and Molecular Biology
TopicGenetics, Aging, and Longevity in Model Organisms
Canadian institutionsnot available
Fundersnot available
KeywordsGeneMutantCaenorhabditis elegansMutation
DOInot available

Abstract

fetched live from OpenAlex

Le role des contributions epigenetiques lors du developpement d'un zygote en un organisme adulte a ete etudie a travers la caracterisation genetique et moleculaire de deux genes a effet maternel, mau-2 et clk-2, chez le nematode C. elegans. Des mutations dans ces deux genes produisent des patrons d'heritabilite differents, ainsi que des phenotypes distincts. Les mutants mau-2 sont secourus partiellement par un effet maternel, mais sont normaux quand un allele de type sauvage est exprime chez le zygote. Le gene mau-2 participe au guidage de nombreuses migrations de cellules et axones lors du developpement. Ce gene code pour une proteine de fonction inconnue, qui a ete conservee lors de l'evolution. mau-2 fonctionne dans les cellules qui migrent pendant le developpement du systeme nerveux. D'autre part, les mutants clk-2 sont completement secourus maternellement, excepte pour leurs competences reproductrices. De plus, ils dependent strictement de la presence d'un allele de type sauvage chez la mere pour leur developpement embryonnaire. clk-2 est requis pour la regulation des rythmes du developpement et du comportement. clk-2 est un gene essentiel, dont la fonction est requise entre la fin de la maturation des oocytes et le stade embryonnaire de deux cellules. clk-2 code pour une proteine qui est similaire a Tel2p, une proteine chez la levure, et est requis pour le maintien d'une longeur normale des telomeres chez le ver. Bien que mau-2 et clk-2 fonctionne differemment pendant le developpement du ver, la base de l'effet maternel semble etre tres similaire dans les deux cas. Une quantite considerable de transcrit est accumule dans les oocytes et est probablement transferee au zygote. Le transcrit ainsi fourni au zygote permet la traduction de proteine de type sauvage en quantite suffisante pour mener la plupart des fonctions de ces deux genes lors du developpement.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.002
Threshold uncertainty score0.003

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

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.

Opus teacher head0.003
GPT teacher head0.151
Teacher spread0.149 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
Domainnot available
GenreEmpirical

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".

Quick stats

Citations0
Published2003
Admission routes1
Has abstractyes

Explore more

Same venueLibrary and Archives Canada (Government of Canada)→Same topicGenetics, Aging, and Longevity in Model Organisms→French-language works237,207→