Figure 4
From: De novo identification of LTR retrotransposons in eukaryotic genomes
Density of LTRs as a function of chromosomal position in chromosome II (a), chromosome III (b), and chromosome X (c) of D. melanogaster. The left sides of 0 in (a) and (b) are from left arms and the right sides of 0 in (a) and (b) are from right arms. The middled point of X chromosome is defined as 0 for the comparison. High densities of LTRs are observed in the pericentromeric regions of all three chromosomes.