Editorial: Regulatory mechanisms of gene expression, chromatin structure and nuclear dynamics in gametogenesis

Primordial germ cells differentiate into gametes through complex processes over a long period of time. Along the way, environmental signals are integrated into the chromatin state and epigenome, leading to molecular and cellular phenotypes. As a result, a diverse set of genomic and epigenomic information is passed on to the next generation. Despite a common principle of sexual dimorphism in which two types of gametes are produced and passed on to the next generation, the repertoire of genes involved and their functions are extremely diverse among species. This article Research Topic covers papers on sexual reproduction in mammals as well as non-mammalian model organisms, such as medaka and Daphnia. These article Research Topic should facilitate a better understanding of the molecular pathways associated with gametogenesis.