amphioxus

How To Use amphioxus In A Sentence

• Thus amphioxus is the only chordate species in which distinct insulin and IGF genes have not been found.
• However, temporal colinearity of Hox gene expression and compact Hox clusters have so far only been described in the cephalochordate, amphioxus, and in vertebrates, but not in Cnidaria, Lophotrochozoa, or Ecdysozoa.
• We have already pointed out (Chapter 1.9) how the epigastrula of the mammals (Figure 1.67) can be reduced to the original type of the bell-gastrula, which is now preserved by the amphioxus alone (Figure The Evolution of Man — Volume 2
• One group, including amphioxus, lampreys, sturgeons and amphibians, displays the primitive condition, with holoblastic eggs and involution of the endoderm through a blastopore.
• The cephalochordate amphioxus is the closest living invertebrate relative of the vertebrates and therefore the best model organism for understanding the composition of the ancestral chordate genome.
• Amphioxus is the closest living invertebrate relative of the vertebrates, and is key to understanding the evolution of vertebrates from an invertebrate ancestor.
• Organisms along the lines of the cephalochordate amphioxus use the gill apparatus for filter feeding.
• FGFRL1, the gene for the fifth member of the fibroblast growth factor receptor (FGFR) family, is found in all vertebrates from fish to man and in the cephalochordate amphioxus. BioMed Central - Latest articles
• In the direct development Bateson showed that the three divisions of the coelom arise as pouches constricted off from the archenteron or primitive gut, thus resembling the development of the mesoblastic somites of _Amphioxus_. Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 2 "Baconthorpe" to "Bankruptcy"
• Amphioxus has only a primitive proto-spinal column called a notochord, but it is a very close relative of the vertebrates. NPR Topics: News