QTLdb: entrichment tests

Release 56
(Apr 24, 2025)

Whole genome analysis for QTL/association enrichment

Running...

Version: Enrich S: beta v0.8

Search:	to limit the list of your trait choices:
	(optional) focus on chromosome with Mb windows across its length

Data:

Number of parasite load traits:	6
Number of QTL / associations found:	210
Number of chromosomes where QTL / associations are found:	27

Chi-squared (χ²) test: are parasite load traits over-represented on some chromosomes?

Chromosomes	Total χ²	df	p-values	FDR ^*	Size of χ²
Chromosome 1	35.43810	26	0.1024969	1.627892e-01
Chromosome 2	52.15236	26	0.001724278	7.759251e-03
Chromosome 3	17.60952	26	0.8895148	9.983293e-01
Chromosome 4	11.00952	26	0.995518	9.983293e-01
Chromosome 5	115.23810	26	3.325599e-13	2.244779e-12
Chromosome 7	2.43810	26	0.998329325823115	9.983293e-01
Chromosome 8	13.75236	26	0.9761208	9.983293e-01
Chromosome 9	25.75236	26	0.47678	6.130029e-01
Chromosome 10	35.43810	26	0.1024969	1.627892e-01
Chromosome 11	35.43810	26	0.1024969	1.627892e-01
Chromosome 12	35.43810	26	0.1024969	1.627892e-01
Chromosome 13	35.43810	26	0.1024969	1.627892e-01
Chromosome 14	35.43810	26	0.1024969	1.627892e-01
Chromosome 15	52.15236	26	0.001724278	7.759251e-03
Chromosome 17	17.60952	26	0.8895148	9.983293e-01
Chromosome 18	11.00952	26	0.995518	9.983293e-01
Chromosome 19	35.43810	26	0.1024969	1.627892e-01
Chromosome 20	35.43810	26	0.1024969	1.627892e-01
Chromosome 21	752.00952	26	8.694365e-142	1.173739e-140
Chromosome 22	25.75236	26	0.47678	6.130029e-01
Chromosome 23	35.43810	26	0.1024969	1.627892e-01
Chromosome 24	178.75236	26	9.5612e-25	8.605080e-24
Chromosome 25	25.75236	26	0.47678	6.130029e-01
Chromosome 26	25.75236	26	0.47678	6.130029e-01
Chromosome 27	35.43810	26	0.1024969	1.627892e-01
Chromosome 28	35.43810	26	0.1024969	1.627892e-01
Chromosome 29	1068.80952	26	9.43871e-209	2.548452e-207

Chi-squared (χ²) test: Which of the 6 parasite load traits are over-represented in the QTLdb

Traits	Total χ²	df	p-values	FDR ^*	Size of χ²
Fecal egg count	88.60963	5	1.316202e-17	2.632404e-17
Fecal larva count	26.16195	5	8.300817e-05	8.300817e-05
Gastrointestinal nematode burden	113.20527	5	8.607243e-23	2.582173e-22
Parasite detection rate	148.6667	5	2.566313e-30	1.539788e-29
Parasites mean of natural logarithm	51.49997	5	6.831209e-10	8.197451e-10
Parasites natural logarithm of mean number	62.79171	5	3.215178e-12	4.822767e-12

Correlations found between some of these traits for your reference

No correlation data found on these traits

Overall Test

Data		Chi'Square Test			Fisher's Exact Test
Number of chrom.:	27	χ²	=	2785.371300
Number of traits:	6	df	=	130
Number of QTLs:	210	p-value	=	0

FOOT NOTE: * : FDR is short for "false discovery rate", representing the expected proportion of type I errors. A type I error is where you incorrectly reject the null hypothesis, i.e. you get a false positive. It's statistical definition is FDR = E(V/R | R > 0) P(R > 0), where V = Number of Type I errors (false positives); R = Number of rejected hypotheses. Benjamini–Hochberg procedure is a practical way to estimate FDR.