Evolutionary acquisition of promoter-associated non-coding RNA (pancRNA) repertoires diversifies species-dependent gene activation mechanisms in mammals

Table 1 The pancRNA-partnered genes in the five species

Species	Total protein-coding genes^a	Positive correlation^b (pancRNA-partnered genes)	(%)^c	Negative correlation^d	(%)^e
Chimp	15036	2013	13.4%	157	1.0%
Macaque	11745	1293	11.0%	83	0.7%
Marmoset	15125	1588	10.5%	74	0.5%
Mouse	17193	3229	18.8%	102	0.6%
Rat	18715	1835	9.8%	75	0.4%

^aTotal protein-coding genes excluding genes containing parts of other genes within their promoters
^bThe protein-coding genes whose expression level is positively correlated with those of the corresponding pancRNA (P < 0.05)
^cThe percentage of the protein-coding genes whose expression level is positively correlated with those of the corresponding pancRNA in total protein-coding genes
^dThe protein-coding genes whose expression level is negatively correlated with those of the corresponding pancRNA (P < 0.05)
^eThe percentage of the protein-coding genes whose expression level is negatively correlated with those of the corresponding pancRNA in total protein-coding genes

ISSN: 1471-2164