Skip to main content
Fig. 5 | BMC Plant Biology

Fig. 5

From: Markers associated with heading and aftermath heading in perennial ryegrass full-sib families

Fig. 5

Heatmap illustrates regions associated with heading over six full-sib families in perennial ryegrass LG4. A Kruskal-Wallis test was done on each marker to identify significant regions for heading. Using perennial ryegrass genome zipper [26, 30] putative gene order for markers on LG4 was identified. These data was used to construct the heatmap for each family. Ryegrass transcriptome linkage map upon which GenomeZipper was based is used as reference to construct LG4 [26, 27] and placed above the heatmap. Each bar in the heatmap represents region between two genetic markers from the linkage map. The median Kruskal-Wallis test statistic was calculated for bins represented by gaps between markers on the genetic linkage map and used to construct the heatmap. Putative orthologs of LpVRN1, LpPHYA, LpPHYB and LpPHYC, were identified in the phylogenetic analysis and placed onto LG4 using genetic positions from genome zipper. The genetic positions of these orthologs were extrapolated over the heatmap as bars. Color of the heatmap illustrates the test-statistic of the Kruskal-wallis analysis from 0 to 21

Back to article page