PEG10 was paternally expressed in all tissues tested (heart, liver, spleen, lung, kidney, stomach,
small intestine, skeletal muscle, fat, uterus, and ovary) in Meishan and Large White crosses
FW et al, 2007 ).
Paternal-specific expression was confirmed in whole parthenogenetic embryos (Ahn J et al, 2020).
Monoallelic expression has been independently confirmed in Chinese Erhualian - Yorkshire crosses (Zhou
Q-Y et al, 2007).
Porcine clones created using day 27 primordial germ cells (PGCs) showed biallelic expression of
PEG10, suggesting that parental
imprints are erased by this stage of embryogenesis (Wen J et al, 2010). Clones derived
from day 35 PGCs
showed paternal monoallelic expression of PEG10.