Genomic imprinting, disrupted placental expression, and speciation

Abstract excerpt

The importance of regulatory incompatibilities to the early stages of speciation remains unclear. Hybrid mammals often show extreme parent-of-origin growth effects that are thought to be a consequence of disrupted genetic imprinting (parent-specific epigenetic gene silencing) during early development. Here, we test the long-standing hypothesis that abnormal hybrid growth reflects disrupted gene expression due to...

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