Alternative signal pathways underly fertilization and egg activation in a fish with contrasting modes of spawning.

ABSTRACT:

Background

The processes of fertilization and egg activation are vital for early embryogenesis. However, while the mechanisms associated with key events during these processes differ among species and modes of spawning, the signal pathways underlying these processes are opaque for many fishes, including economically important species.

Results

We investigated phenotypic traits, ultrastructure and protein expression levels in the eggs of the topmouth culter (Culter alburnus), a protected and economically important freshwater fish that exhibits two spawning modes, producing semi-buoyant eggs and adhesive eggs. Unfertilized eggs of C. alburnus were examined, as well as eggs at fertilization and 30 min post fertilization. Our results showed that in semi-buoyant eggs, energy metab

SUBMITTER: Chen F 

PROVIDER: S-EPMC10074663 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature