Extension to the multiple marker interval GTL detection is also discussed.
The average marker interval was maximum in C3 (8.23 cM) while it was lowest in C10 (5.78 cM).
Variance components were estimated and restricted maximum likelihood test statistics were calculated at the midpoint of each marker interval.
The QTL in this marker interval was estimated to be responsible for between 5.89 and 13.86% of the genetic variation in somatic cell score.
The genetic map consisting of 10 linkage group covering a total map length of 1833.4 centimorgan (cM) with average marker interval of 6.93 cM was developed.
These results suggest the presence of one QTL with pleiotropic effects on multiple traits or multiple QTL within the marker interval.
Three QTLs (qSES4.1, qFWsht4.2, and qDWsht4.2) are located in a similar position (32 cM) on chromosome 4 as the cluster at the marker interval of id4008522-id4008092.
The new approach works well if the marker interval length is approximately 5 cM.
In the first simulation run, the QTL was located in the middle of the first marker interval; in the second run, the QTL was in the middle of the second marker interval; and so on.
The mean and median marker interval for the genome-wide SNPs was 107 Kb and 70 Kb, respectively.
The locus was delimited to a 0.14 cM marker interval, and a PCR-based marker located 0.07 cM from Rdg2a was developed [7].
