Gene expression patterns that support novel developmental stress buffering in embryos of the annual killifish Austrofundulus limnaeus.

ABSTRACT:

Background

The cellular signaling mechanisms and morphogenic movements involved in axis formation and gastrulation are well conserved between vertebrates. In nearly all described fish, gastrulation and the initial patterning of the embryonic axis occur concurrently with epiboly. However, annual killifish may be an exception to this norm. Annual killifish inhabit ephemeral ponds in South America and Africa and permanent populations persist by the production of stress-tolerant eggs. Early development of annual killifish is unique among vertebrates because their embryonic blastomeres disperse randomly across the yolk during epiboly and reaggregate several days later to form the embryo proper. In addition, annual killifish are able to arrest embryonic development in one to three stages

SUBMITTER: Wagner JT 

PROVIDER: S-EPMC4372997 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature