Fig. 3From: TGTT and AACA: two transcriptionally active LTR retrotransposon subfamilies with a specific LTR structure and horizontal transfer in four Rosaceae speciesInsertion times of TGTT and AACA elements in the four Rosaceae species. The y-axis represents the insertion time. Each TGTT and AACA family is separated by dotted lines. Elements from different species are represented by red (Pyrus bretschneideri), blue (Malus domestica), green (Prunus persica) and purple (Prunus mume) circles, respectivelyBack to article page