Embryogenesis and early skeletogenesis in the antarctic bullhead notothen, Notothenia coriiceps.

ABSTRACT:

Background

Environmental temperature influences rates of embryonic development, but a detailed staging series for vertebrate embryos developing in the subzero cold of Antarctic waters is not yet available from fertilization to hatching. Given projected warming of the Southern Ocean, it is imperative to establish a baseline to evaluate potential effects of changing climate on fish developmental dynamics.

Results

We studied the Bullhead notothen (Notothenia coriiceps), a notothenioid fish inhabiting waters between -1.9 and +2 °C. In vitro fertilization produced embryos that progressed through cleavage, epiboly, gastrulation, segmentation, organogenesis, and hatching. We compared morphogenesis spatially and temporally to Zebrafish and medaka. Experimental animals hatched after

SUBMITTER: Postlethwait JH 

PROVIDER: S-EPMC5065385 | biostudies-literature | 2016 Nov

REPOSITORIES: biostudies-literature