First come, first served: Mammalian recombination is timed to replication.

Halliwell, Jason A; Hoffmann, Eva R · Cell · 2021

basic_science · Level V

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Abstract

Meiotic recombination drives the formation of new chromosomes in germ cells and is essential for fertility in mammals. In this issue of Cell, Pratto et al. have developed a method to map replication origins directly in mammalian tissue for the first time, revealing evolutionary conservation between replication timing and meiotic recombination in males.

Medical subject headings