Evolved Differences in cis and trans Regulation Between the Maternal and Zygotic mRNA Complements in the Drosophila Embryo.

ABSTRACT: How gene expression can evolve depends on the mechanisms driving gene expression. Gene expression is controlled in different ways in different developmental stages; here we ask whether different developmental stages show different patterns of regulatory evolution. To explore the mode of regulatory evolution, we used the early stages of embryonic development controlled by two different genomes, that of the mother and that of the zygote. During embryogenesis in all animals, initial developmental processes are driven entirely by maternally provided gene products deposited into the oocyte. The zygotic genome is activated later, when developmental control is handed off from maternal gene products to the zygote during the maternal-to-zygotic transition. Using hybrid crosses between sister specie

SUBMITTER: Cartwright EL 

PROVIDER: S-EPMC7648588 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature