Patterns of hybrid loss of imprinting reveal tissue- and cluster-specific regulation.
Crosses between natural populations of two species of deer mice, Peromyscus maniculatus (BW), and P.polionotus (PO), produce parent-of-origin effects on growth and development.BW females mated to PO males (bwxpo) produce growth-retarded but otherwise healthy offspring.In contrast, PO females mated to BW males (POxBW) produce overgrown and severely