Genomic neighborhoods for Arabidopsisretrotransposons: a role for targeted integration in the distribution of the Metaviridae

Table 5 Comparison of LTR retroelement age distributions

Hypotheses	Test	Group(s) tested	Chromosome p-values	Accept?
Metaviridae and Pseudoviridae have similar age distributions in the genome	MRPP, 10,000 random permutations	MV(F), PV(F)	0.0000	No
Metaviridae sublineages have similar age distributions	MRPP, 10,000 random permutations	MV Athila, Metavirus, Tat	0.0000	No
		MV Athila, Metavirus	0.0000	No
		MV Athila, Tat	0.0003	No
		MV Metavirus, Tat	0.4618	Yes
Metaviridae age distributions are similar whether the elements are in or out of heterochromatin	MRPP, 10,000 random permutations	MV(F)	0.0021	No
Metaviridae sublineage age distributions are similar whether they are in or outside heterochromatin	MRPP, 10,000 random permutations	MV Athila	0.0410	No
		MV Metavirus	0.5747	Yes
		MV Tat	0.0457	No
Pseudoviridae age distributions are similar whether the elements are in or outside heterochromatin	MRPP, 10,000 random permutations	PV(F)	0.0167	No

MV, Metaviridae; PV, Pseudoviridae; NL, non-LTR retrotransposon; R, RT-only; S, solo LTR; F, full-length element. p-values < 0.05 are displayed in bold text.

ISSN: 1474-760X