SUMMARY. The embryonic development of germ cells in tetrapods is described, focusing on groups with the inductive mode of germ cell specification. In mammals PGCs are induced early in the gastrulation process, they are internalized with future extraembryonic mesoderm in the early posterior primitive ...
water (hippopotamus are one of the rare counterexamples, since they spend a great deal of time in the water but feed on grass on land), and that evolutionary scenarios regarding the evolution of aquatic tetrapods often involve feeding in the water as an early part of the evolutionary scenario...
Evolution: Teenage tetrapodsBone analysis of aquatic tetrapods from around the time when these four-limbed vertebrates began to move onto land reveals that the large specimens were only juveniles, raising questions about how these animals developed. See Letter p.408...
Although tetrapods have historically been among the best-understood animals, there has been a perpetual debate on their classification. By the 18th century, Carl Linnaeus had already included tetrapods in his six broad classes of animals, and by the early 19th century, the French zoologist Pierre...
This study examines the genomes of hemichordates, cephalochordates, tunicates, agnathans, cartilaginous fishes, lobe-finned fishes, ray-finned fishes and representative tetrapods to identify predicted tenascin proteins. We comprehensively assess their evolutionary relationships by sequence conservation, molecu...
Evolution and development of the tetrapod auditory system: an organ of Corti-centric perspective. SUMMARYThe tetrapod auditory system transmits sound through the outer and middle ear to the organ of Corti or other sound pressure receivers of the inner e... B Fritzsch,N Pan,I Jahan,... - ...
SUMMARY Despite the wide range of shapes and sizes that accompany a vast variety of functions, the development of tetrapod limbs follows a conservative pat... Nadia B Frbisch,RL Carroll,RR Schoch - 《Evolution & Development》 被引量: 151发表: 2010年 The mandibles of the Triassic temnospondy...
gene that duplicated about 450 million years ago (Mya). Aldosterone, by contrast, is found only in tetrapods and, therefore, evolved long after the origin of the two receptors (Fig.1A). The question is, how could these receptors become specific for different hormones when one of the ...
The complete sequence of a human genome. Science 376, 44–53 (2022). Article ADS CAS PubMed PubMed Central Google Scholar Irisarri, I. & Meyer, A. The identification of the closest living relative(s) of tetrapods: phylogenomic lessons for resolving short ancient internodes. Syst. Biol....
By analysis of the conservation of synteny (i.e., conservation of gene neighbours) of individual thrombospondin genes across different vertebrates, and with evidence of their paralogous genomic locations in the human genome, a model for evolution of the teleost and tetrapod TSP gene families has ...