Fig. 5: Syntenic relationships and the Ks distribution suggest an ancient whole-genome multiplication (WGM) event in baobab.
From: Chromosome-level baobab genome illuminates its evolutionary trajectory and environmental adaptation
a Dot plot illustrating that A. digitata genome retained many almost full chromosomes (Chr) after WGM. The Ad77271a (y-axis) genome was aligned to the cacao (Theobroma cacao; x-axis) genome at the protein level with MCscan (Python version with default parameters). b Multi-species pairwise comparison of substitution per synonymous site (Ks) showing speciation events. c The self-self alignments (paralogs) showing WGM events. d Microsynteny plot between A. digitata and T. cacao showing a chromosomal region in the T. cacao chromosome 9 bearing gene ZEITLUPE (ZTL) and VERNALIZATION 3 (VIN3) genes, which can be tracked to four regions in A. digitata (blue and green lines, respectively). e Enriched Gene Ontology (GO) terms related to gene regulation for exocytosis and flower development in A. digitata. The syntenic depth ratio between genomes and the evolution event age million years ago (MYA) is indicated inside the parenthesis. Source data are provided as a Source Data file.
