Insertion bias and purifying selection of retrotransposons in the Arabidopsis thalianagenome

Table 1 Relative abundance of LTR-retrotransposons in Arabidopsis thaliana

Superfamily	Percentage of genome*	Number of complete elements^†	Percentage DNA in complete elements^†	Number of solo-LTRs
Athila	2.73 %	219	50 %	586
Gypsy-like	1.32 %	130	53 %	250
Copia-like	1.39 %	215	63 %	343
TRIM	0.15 %	28	53 %	58
Total	5.60 %	592	54 %	1,237

*The '% of genome' includes all LTR-RT sequences (in the nuclear genome) for each superfamily, rather than just complete and solo-LTR elements. Fragments of LTR-RTs were also found in the mitochondrial (2.74%) and chloroplast (0.05%) genomes. ^†Elements containing indels were included as complete elements provided they retain a substantial part of both their LTRs.

ISSN: 1474-760X