Genes near spreading retrotransposons show lower expression than genes near non-spreading retrotransposons.

<p>Average RPKM values (from B73 leaf) for all genes falling within 0.5 kb, 1 kb, and 2.5 kb from the respective class of retrotransposons were developed. White numbers within bars indicate the total number of genes within each category. Red asterisks indicate highly significant (p<0.001) difference from the non-spreading retrotransposons (black) within the distance classification. Black asterisks indicate significant (p<0.001) difference from genes not near any retrotransposons (grey).