The research appeared in the journal PLOS ONE under the title "Molecular regionalization of the developing amphioxus
neural tube challenges major partitions of the vertebrate brain.
The researchers propose that if a critical function were performed by a single protein, as in amphioxus
, then its loss or mutation would likely be lethal, resulting in no disease.
Biology of the amphioxus
, Branchiostoma belcheri in the Ariake Sea, Japan.
The fossils, named Myllokunmingia and Haikouichthys, also have a more complex arrangement of gills than the simple slits used by amphioxus
, according to the team's report in the Nov.
genome illuminates vertebrate origins and cephalochordate biology.
The present study is concerned with two cephalochordates representing different genera: namely, the Florida amphioxus
, Branchiostoma floridae Hubbs, 1922, and the Bahamas lancelet, Asymmetron lucayanum Andrews, 1893.
20-22) On the other hand, homologs of Bcl11a are already present in the genomes of amphioxus
and sea lamprey.
It's a long way from amphioxus
, it's a long way to us.
A neurotropic herpesvirus infecting the gastropod, abalone, shares ancestry with oyster herpesvirus and a herpesvirus associated with the amphioxus
Nurpl homologs have been obtained and characterized in many species of vertebrates and invertebrates, including mice, halibut, urchins, amphioxus
, and frogs (Vasseur et al.
The number and locations of hox genes and their DNA sequences in a wormlike, seemingly headless creature called amphioxus
place this animal as a missing link -- genetically speaking -- between animals with backbones and animals without.