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QTL maps for lever press–nose poke performance (A) QTL map for lever press–nose poke performance in the fifth session of training. LRS reaches suggestive threshold on chromosome 9. (B) QTL map for lever press–nose poke performance in the fifth session of training, zoomed in on chromosome 9. LRS peak is situated around 58 MB. The abscissa runs from 0 to 124 megabases.
