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. 2009 Aug 15;9:203. doi: 10.1186/1471-2148-9-203

Table 1.

Number of markers for each type and conservation level.

Marker type metatheria amniote total
coding 4335 9951 14286
non-coding 46914 26217 73131

Coding markers are genes as annotated in EnsEMBL and non-coding markers are non-coding conserved regions (taken from the UCSC 28-way alignment). A human marker (coding or non-coding) conserved only at between human and opossum is labeled as metatheria marker. A human marker conserved both with opossum and chicken is labelled amniote marker.