Every species pair in CnidoSite, compared with macrosyntR on BUSCO single-copy ortholog anchors.
One cell = one species pair; the colour is the chosen statistic (default: the fraction of shared
ortholog anchors that fall inside significant, conserved chromosome blocks). Click a cell to open
the full Oxford grid for that pair. Cells cover within-class and between-class pairs alike.
Sorted by the fraction of anchors inside significant blocks; only pairs sharing ≥ 200 anchors are counted (the fraction is unstable when anchors are few).
How to read this heatmap. The diagonal is a species against itself and is left blank. The darker
the cell, the more / larger conserved chromosome blocks there are between the two genomes: a high
frac_in_sig means most orthologs still sit together in blocks on chromosomes (a conserved
karyotype), whereas a pale cell with many anchors means the orthologs are scattered over many
chromosomes/contigs — the signature of an actively rearranged genome or a fragmented assembly
(for example the reduced genomes of parasitic Myxozoa). Classes are marked with different side bars so
within-class and between-class comparisons are easy to tell apart. The numbers come from macrosyntR:
a Fisher exact test per chromosome pair, with significant pairs merged into linkage groups by
igraph::cluster_fast_greedy.