The features, evolution, and divergence of the pecan subgenomes.
(A) Evolutionary analysis of genomes, subgenomes, and gene sets in pecan, walnut, and bayberry, using Arabidopsis as an outgroup. Numbers indicate the number of gene families.
(B) Venn diagram of genes in the recent WGD (WGD 2), subgenomes (sub A and sub B), and transcription factors. Numbers indicate the number of genes.
(C) Significantly expanded TF families.
(D) Distribution of Copia and Gypsy LTRs on the subgenomes.
(E) Insertion time estimates of LTRs.