ARP2/3-independent WAVE/SCAR pathway and class XI myosin control sperm nuclear migration in flowering plants.

ABSTRACT: After eukaryotic fertilization, gamete nuclei migrate to fuse parental genomes in order to initiate development of the next generation. In most animals, microtubules control female and male pronuclear migration in the zygote. Flowering plants, on the other hand, have evolved actin filament (F-actin)-based sperm nuclear migration systems for karyogamy. Flowering plants have also evolved a unique double-fertilization process: two female gametophytic cells, the egg and central cells, are each fertilized by a sperm cell. The molecular and cellular mechanisms of how flowering plants utilize and control F-actin for double-fertilization events are largely unknown. Using confocal microscopy live-cell imaging with a combination of pharmacological and genetic approaches, we identified factors involv

SUBMITTER: Ali MF 

PROVIDER: S-EPMC7768783 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature