Skip to main content

Table 1 Probability Descent QTL (PDQ) functions for a marker interval to calculate the probability that a chromosomal segment is of paternal origin, given information in flanking markers.

From: A general and efficient method for estimating continuous IBD functions for use in genome scans for QTL

Parental origin Marker 1

Parental origin Marker 2

Probability that QTL is of paternal origin

dam1

dam1

r a r b 1 r MathType@MTEF@5@5@+=feaafiart1ev1aaatCvAUfKttLearuWrP9MDH5MBPbIqV92AaeXatLxBI9gBaebbnrfifHhDYfgasaacPC6xNi=xH8viVGI8Gi=hEeeu0xXdbba9frFj0xb9qqpG0dXdb9aspeI8k8fiI+fsY=rqGqVepae9pg0db9vqaiVgFr0xfr=xfr=xc9adbaqaaeGacaGaaiaabeqaaeqabiWaaaGcbaqcfayaamaalaaabaGaemOCai3aaSbaaeaacqWGHbqyaeqaaiabdkhaYnaaBaaabaGaemOyaigabeaaaeaacqqGXaqmcqGHsislcqWGYbGCaaaaaaa@3569@

sire1

sire1

( 1 r a ) ( 1 r b ) 1 r MathType@MTEF@5@5@+=feaafiart1ev1aaatCvAUfKttLearuWrP9MDH5MBPbIqV92AaeXatLxBI9gBaebbnrfifHhDYfgasaacPC6xNi=xH8viVGI8Gi=hEeeu0xXdbba9frFj0xb9qqpG0dXdb9aspeI8k8fiI+fsY=rqGqVepae9pg0db9vqaiVgFr0xfr=xfr=xc9adbaqaaeGacaGaaiaabeqaaeqabiWaaaGcbaqcfa4aaSaaaeaacqGGOaakcqaIXaqmcqGHsislcqWGYbGCdaWgaaqaaiabdggaHbqabaGaeiykaKIaeiikaGIaeGymaeJaeyOeI0IaemOCai3aaSbaaeaacqWGIbGyaeqaaiabcMcaPaqaaiabigdaXiabgkHiTiabdkhaYbaaaaa@3C8D@

dam1

sire1

( r a ) ( 1 r b ) r MathType@MTEF@5@5@+=feaafiart1ev1aaatCvAUfKttLearuWrP9MDH5MBPbIqV92AaeXatLxBI9gBaebbnrfifHhDYfgasaacPC6xNi=xH8viVGI8Gi=hEeeu0xXdbba9frFj0xb9qqpG0dXdb9aspeI8k8fiI+fsY=rqGqVepae9pg0db9vqaiVgFr0xfr=xfr=xc9adbaqaaeGacaGaaiaabeqaaeqabiWaaaGcbaqaaKqbaoaalaaabaGaeiikaGIaemOCai3aaSbaaeaacqWGHbqyaeqaaiabcMcaPiabcIcaOiabigdaXiabgkHiTiabdkhaYnaaBaaabaGaemOyaigabeaacqGGPaqkaeaacqWGYbGCaaaaaaa@38D4@

sire1

dam1

( 1 r a ) ( r b ) r MathType@MTEF@5@5@+=feaafiart1ev1aaatCvAUfKttLearuWrP9MDH5MBPbIqV92AaeXatLxBI9gBaebbnrfifHhDYfgasaacPC6xNi=xH8viVGI8Gi=hEeeu0xXdbba9frFj0xb9qqpG0dXdb9aspeI8k8fiI+fsY=rqGqVepae9pg0db9vqaiVgFr0xfr=xfr=xc9adbaqaaeGacaGaaiaabeqaaeqabiWaaaGcbaqcfa4aaSaaaeaacqGGOaakcqaIXaqmcqGHsislcqWGYbGCdaWgaaqaaiabdggaHbqabaGaeiykaKIaeiikaGIaemOCai3aaSbaaeaacqWGIbGyaeqaaiabcMcaPaqaaiabdkhaYbaaaaa@38D3@

  1. r : recombination probability from the Haldane mapping function between the two markers (r), between the left/right (ra/rb) marker and the QTL; 1: Probability of maternal origin is calculated analogously by inverting dam/sire origin of the markers.