Table 1.

TE Copy Number (Per MB) and Genome Characteristics in Regions of Reduced Recombination Compared With the Chromosome Arms




Reduced recombination

Chromosome arms
Class Ia 16.3*** 3.5
gypsy 33.0*** 0.3
Class II 30.6*** 10.2
CACTA 6.5*** 0.16
Class III 16.9*** 6.7
GC content 0.368** 0.361
Exon density (per Mb) 417** 1300
Fraction of coding DNA 0.131*** 0.326
Intron size (bp)b
188.9**
167.2

Significance levels are given for the Mann-Whitney U test, *, P <0.05

a Class I elements include those insertins that could be definitively classified as copia-like, LINE-like, and SINE-like

b Excludes contribution of TE insertions to intron length

** , P <0.01

*** , P <0.001