Fig. 4From: Karyotype and LTR-RTs analysis provide insights into oak genomic evolutionEvolution and diversity of LTR-RTs lineages in each oak species. a The estimated insertion time of all full-length LTR-RTs (MYA, millions of years ago); b The estimated insertion time of Copia; c The estimated insertion time of Gypsy; d Phylogenetic trees constructed based on reverse transcriptase domain sequences. The different colors on the outer circle represent different species, and the different colors on the Branch represent different lineagesBack to article page