6A, 1A and 8B) as well as normal histological internal organs development including brain, nose, heart, lung, liver, gut, and tail buds
As found in previous studies (1, 2), the strongest modulation of calcium levels was seen in the caudal half of the embryo centered around the region of the tail bud
, with the brightest signals in the mesoderm, endoderm, and subjacent yolk syncytial layer.
These genes are initially expressed in the involuting mesoderm of the gastrula, then in the differentiating somites of the neurula, followed by the differentiating notochord and finally in the tail bud
of the 10-somite stage embryo (15).
These abnormalities often led to death, which generally occurred before the tail bud
stage (24 h).
These few tadpoles were growing tail buds
before they were mature enough.