DAWN screenshot of the three yield QTL regions aligned to Chinese Spring reference sequence, RefSeq v1.0.

The “Genes” track shows the high confidence genes according to the RefSeq annotation v 1.0. The yellow tracks show the number of reads from a wheat accession that aligns to RefSeq v1.0 at each position of the genome. The blue tracks show the variant density (SNP per 10 Kb–log scaled) between reads from a wheat accession and RefSeq v1.0. (A) The “QYld.aww-4B” track shows the QTL interval and the position of the significantly associated markers. (B)–The “Chr4B” track shows the region on chromosome 4B containing QYld.aww-4B and Rht-B1. Different patterns across the blue tracks in the QYld.aww-4B and Rht-B1 regions indicate that these two regions segregate independently. (C)–The “QYld.aww-5A” track shows the QTL interval and significantly associated markers. The red arrow indicates the region of the marker Excalibur_c27558_298. (D)–The “QYld.aww-6B” track shows the QTL interval and the significantly associated markers.