ntSynt Report — Ursidae bears

Assembly statistics

Statistic	Value
Number of assemblies	10
Range of number of chromosomes	21 – 38
Genome size range (Gbp)	2.1 – 2.4

Source: Ursidae_bears_assemblies/Ursidae_bears_abyss_fac-summary.tsv

Synteny block statistics

Statistic	Value
Number of blocks	3,494
Average synteny coverage (%)	93.63
Synteny coverage of smallest genome (%)	97.59
N50 length of synteny blocks (bp)	2,221,673

Source: ntSynt.k24.w1000.synteny_blocks.stats.tsv

Reasons for synteny block discontinuities

Synteny block discontinuity reason	Count
ori_change	2,312
id_change	554
indel	472
inconsistent_order	141
merge	14

Source: ntSynt.k24.w1000.discontinuity_reasons.tsv

Mash divergence distributions

Pairwise mash distances across full-genome, syntenic, and non-syntenic regions. Wilcoxon signed-rank test p-value shown between syntenic and non-syntenic distributions. Interactive — hover over a point to see the genome pair. Source: mash/mash_divergence_boxplot.html

Synteny ribbon plot

Ursidae_bears_ribbon-plot_tree

ntSynt-viz ribbon plot showing synteny blocks across all assemblies. Nuclear genome tree included in ribbon plot. Interactive — hover to highlight, click to pin tooltips. Source: ntsynt-viz/Ursidae_bears_ribbon-plot_tree.html