Table 4

Densities of predicted non-coding RNAs identified within salamander BACs and human orthologous introns

Predicted ncRNAs

Ambystoma

Human

Z

P-value

miRNA

1.6%

1.0%

11.1

<<1e-4

snoRNA

0.6%

0.1%

15.0

<<1e-4

Total

2.3%

1.2%

17.4

<<1e-4

Smith et al. BMC Genomics 2009 10:19   doi:10.1186/1471-2164-10-19