https://w3id.org/np/RAscAYxnNIO0454VneCKWHW6sq6-HLGGH6cz9_bgbYMfA
.trig | .trig.txt | .jelly | .jelly.txt | .jsonld | .jsonld.txt | .nq | .nq.txt | .xml | .xml.txt
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sub:assertion {
<https://w3id.org/delphi/resource/assessment/morgan1915-04--claim-test> a <https://w3id.org/delphi/ontology/Assessment>;
dc:description "Seven loci (y, w, bi, v, m, s, B) looked up by symbol; 1915 map distance for each of the 21 pairs from the book's percentages versus genomic distance between gene midpoints (Mb); Spearman rank correlation.";
<http://www.w3.org/2000/01/rdf-schema#comment> "Measured: 0.9662 Spearman rho between 1915 map distance and genomic distance over 21 locus pairs (n = 21, Pearson r 0.972; 7 loci on one chromosome). Interpretation: The 1915 map values are the ones quoted in the claims file from the book (yellow-white 1, white-bifid 5, yellow-bifid 6, white-miniature 33, miniature-Bar 22, vermilion-sable 10, sable-Bar 14), not FlyBase's recombination_loc column, which for most genes is interpolated from cytology and would be circular. The test is one chromosome and seven loci: it tests the law where Morgan stated it, not genome-wide.";
<http://www.w3.org/2000/01/rdf-schema#label> "Claim test of morgan1915-04: supports, confidence 0.8";
<http://www.w3.org/2000/01/rdf-schema#seeAlso> <https://github.com/fractastical/delphisci/blob/bf2af6ee0a84e23ffa6414ad7a0a50a8c276506e/test-data/claim-tests/evolution-after-darwin/morgan1915-04/result.json>;
prov:wasAttributedTo <https://w3id.org/delphi/resource/agent/delphisci-claim-tester-claude-fable-5-1>;
<https://w3id.org/delphi/ontology/admissibleDatasets> "Planned datasets: flybase-gene-map-table";
<https://w3id.org/delphi/ontology/assessmentType> "claim-test/0.1.0";
<https://w3id.org/delphi/ontology/dataKind> "biological";
<https://w3id.org/delphi/ontology/disconfirmingObservation> "Spearman < 0.70: refutes. Between 0.70 and 0.90: mixed. Any of the seven loci not found in the map table with an X-chromosome sequence location: inconclusive.";
<https://w3id.org/delphi/ontology/evidenceAgainst> "Seven loci on the X only: it tests the law where Morgan stated it. Genome-wide, recombination rate varies along chromosomes (hotspots, centromere suppression), so the relation is monotone, not linear.",
"The 1915 map values come from the book's quoted percentages, not from FlyBase's recombination_loc column, which is largely interpolated from cytology.",
"sable and Bar are resolved through the FlyBase synonym table to Ype (Yippee) and B-H1 (BarH1); the Bar mutation itself is a duplication of 16A with no single coordinate, so B-H1 stands for its position.";
<https://w3id.org/delphi/ontology/expectedObservation> "Over the 21 pairs of the seven loci, Spearman rank correlation between 1915 map distance and genomic distance (midpoints of FlyBase sequence locations on X, Release 6) is >= 0.90: supports.";
<https://w3id.org/delphi/ontology/failCriterion> "Spearman < 0.70: refutes. Between 0.70 and 0.90: mixed. Any of the seven loci not found in the map table with an X-chromosome sequence location: inconclusive.";
<https://w3id.org/delphi/ontology/hasConfidence> "0.8"^^xsd:double;
<https://w3id.org/delphi/ontology/hasEvidence> <https://w3id.org/delphi/resource/evidence/morgan1915-04--claim-test--dataset-1>;
<https://w3id.org/delphi/ontology/hasVerdict> "supports";
<https://w3id.org/delphi/ontology/hypothesis> "If crossing over between two factors increases with their distance apart, the 1915 X-chromosome map distances between yellow, white, bifid, vermilion, miniature, sable and Bar (read from the book's own percentages: y 0, w 1, bi 6, v 32, m 34, s 42, B 56) increase with the genomic distance between those genes.";
<https://w3id.org/delphi/ontology/inferenceMethod> "Seven loci (y, w, bi, v, m, s, B) looked up by symbol; 1915 map distance for each of the 21 pairs from the book's percentages versus genomic distance between gene midpoints (Mb); Spearman rank correlation.";
<https://w3id.org/delphi/ontology/passCriterion> "Over the 21 pairs of the seven loci, Spearman rank correlation between 1915 map distance and genomic distance (midpoints of FlyBase sequence locations on X, Release 6) is >= 0.90: supports.";
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dc:description "";
dc:license "CC BY 4.0";
<http://www.w3.org/2000/01/rdf-schema#label> "Dataset: FlyBase precomputed gene map table FB2026_03 (D. melanogaster Release 6 coordinates)";
prov:atLocation <https://s3ftp.flybase.org/releases/current/precomputed_files/genes/gene_map_table_fb_2026_03.tsv.gz>,
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this: dc:created "2026-11-08T16:24:31.868Z"^^xsd:dateTime;
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