Transcripts from CALCR (calcitonin receptor) were detected only from the maternal allele in
human-mouse monochromosomal hybrids (Okita
C et al, 2003). In mouse, Calcr is preferentially expressed from the maternal allele in brain.
D et al, (2008) found monoallelic expression of CALCR in 4 of 5 brains. In view of results from
Okita et al. and mouse studies, it is reasonable to assume maternal expression. Other tissues showed
Morcos L et al, (2011) found no evidence of
allelic expression bias in lymphoblast cell lines.