Zebrafish - Gastrula Period
From Embryology
Gastrula Period
The duration of this period is from 5.25 to 10.33 hours
- Transition from 50% epiboly to 1-4 somites
- Primary germ layers (also known as 'germ ring') are produced during this stage
- Each germ layer (endoderm, mesoderm, ectoderm) is put in the right place so that bodily organs and tissues can form in the correct locations
- Involution produces the germ ring by folding the blastoderm back upon itself
- The gastrula period ends when epiboly is complete, and the tail bud has form
