The marker D2Mit423 correlates moderately well with a number of Chr 2 transcripts. This is due to linkage disequilibrium. These correlations are not due to a molecular interactions other than being close together on a chromosome.  But we have circled one transcript, actinin alpha 2, that has a moderately good correlation (0.59) with D2Mit423. If we map this gene we expect to find a suggestive QTL that peaks near D2Mit423