The 24 h (circadian) timing system develops in mammals during the perinatal period. It
carries out the essential task of anticipating daily recurring environmental changes to identify …

PEG10 and PEG11/RTL1 are paternally expressed, imprinted genes that play essential
roles in the current eutherian developmental system and are therefore associated with …

Astrocytes regulate the formation and function of neuronal synapses via multiple signals;
however, what controls regional and temporal expression of these signals during …

Genomic imprinting predominantly occurs in the placenta and brain. Few imprinted
microRNAs have been identified in the brain, and their functional roles in the brain are not …

Genomic imprinting is an epigenetic process through which genes are expressed in a parent-
of-origin specific manner resulting in mono-allelic or strongly biased expression of one …

Highlights•Imprinted effects in the brain range from monoallelic to parentally-biased
expression.•Imprinted expression is highly specific to brain region, cell type, and …

The benefits of diploidy are considered to involve masking partially recessive mutations and
increasing genetic diversity. Here, we review new studies showing evidence for diverse …

Abstract RTL1/PEG11, which has been associated with anxiety disorders, is a
retrotransposon-derived imprinted gene in the placenta. However, imprinting patterns and …

Background High-throughput sequencing experiments, which can determine allele origins,
have been used to assess genome-wide allele-specific expression. Despite the amount of …

Hybrid species have more genetic diversity than their parents. However, the impact of the
hybrid genome of reciprocal crosses on brain function remains largely unknown. We …