• The three existing groups of the phylum Chordata, namely urochordates (ascidians), cephalochordates (amphioxus), and craniates (including vertebrates and agnates), share many characteristics. (biomedcentral.com)
  • Huxley next coupled the anatomy of an adult organism with the anatomy of an embryo, and he proposed a connection between the study of growth and development, called ontogeny, and the study relationships between organisms or taxa, called phylogeny. (asu.edu)
  • Darwin himself did not use the term "phylogeny," but he referred to his tree as a "diagram of divergence of taxa. (what-when-how.com)
  • Haeckel promoted and popularised Charles Darwin's work in Germany and developed the influential but no longer widely held recapitulation theory ("ontogeny recapitulates phylogeny") claiming that an individual organism's biological development, or ontogeny, parallels and summarises its species' evolutionary development, or phylogeny. (wikipedia.org)
  • The association that Huxley drew between ontogeny and phylogeny, later called recapitulation, influenced other nineteenth century scientists like Charles Darwin, in England, and Ernst Haeckel, in Germany. (asu.edu)
  • Many biologists deemed the germ layers homologous across the animal kingdom, effectively uniting ontogeny with phylogeny. (asu.edu)
  • A coordinated tempo-spatial expression of transcription factors is required for cell type specification and the differentiation of the three germ layers into distinct organ systems during bilaterian ontogeny [ 1 ]. (biomedcentral.com)
  • Despite the apparent simplicity of poriferans and cnidarians as organisms, these phyla encode a greater diversity of TSP superfamily members than vertebrates. (bvsalud.org)
  • Here, we profile eight genomes of the bivalve mollusc family of Pectinidae in a phylogenetic context and show 350 million years sex-chromosome homomorphy, which is the oldest known sex-chromosome homomorphy in the animal kingdom, far exceeding the ages of well-known heteromorphic sex chromosomes such as 130-200 million years in mammals, birds and flies. (nature.com)
  • MethodsWe did the role of cartilage, topology, phylogeny and Bayesian phylogenetic approach as methods of construction kontern across ca. (stormportal.de)
  • The phylogenetic implications of this shell structure in relation to other early Cambrian brachiopod families are interpreted based on solid evidence. (elifesciences.org)
  • The most species-rich genus in the family is Pteropus with 59 species, many of which are island endemics. (animaldiversity.org)
  • type form of its genus, family Mayorellidae, order Amoebida. (eol.org)
  • Notably, the ontogeny of sea lamprey hemoglobins essentially recapitulates their phylogeny, with the embryonic hemoglobins emerging first, followed by the evolution of larval and adult hemoglobins. (biomedcentral.com)
  • Evolution and development at the origin of a phylum. (ucsd.edu)
  • synonymized to ebook by useful phylogenies, the obtained species' of Perciformes is especially the analysis of allowed fishes, while confounding French evolution that has carefully compiled into trans-subordinal waters and relatives. (stormportal.de)
  • Although phylogenies began to appear in the late nineteenth century, they were based on subjective assessments of the morphological similarities and differences that were then regarded as indications of kinship. (what-when-how.com)
  • He discovered, described and named thousands of new species, mapped a genealogical tree relating all life forms and coined many terms in biology, including ecology, phylum, phylogeny, and Protista. (wikipedia.org)
  • In the species-rich Phylum Arthropoda, the mitochondrial genome is relatively well conserved both in terms of number and order of genes. (bvsalud.org)
  • Between 1859 and 1866 Haeckel worked on many phyla, such as radiolarians, poriferans (sponges) and annelids (segmented worms). (wikipedia.org)
  • E.g. the genera of cats (Felis) and leopard (Panthera) are included in the family felidae. (bankofbiology.com)
  • Order Carnivora contains families such as Felidae and Canidae. (bankofbiology.com)
  • Felidae ( / ˈ f ɛ l ɪ d iː / ) is the family of mammals in the order Carnivora colloquially referred to as cats . (wikipedia.org)
  • 2017). Xibalbanus cozumelensis, a new species of Remipedia (Crustacea) from Cozumel, Mexico, and a molecular phylogeny of Xibalbanus on the Yucatán Peninsula. (uib.no)
  • In his article "On the Anatomy and Affinities of the Family of the Medusae," Huxley compared the anatomy of the jellyfish family and recognized that the two tissue layers he saw in the body plan of the adult jellyfish corresponded with, or were homologous to, the layers in the embryo of the chick that Pander had described. (asu.edu)
  • They are separable from genera of a related family by important and characteristic differences in both vegetative and reproductive features. (bankofbiology.com)
  • Family Solanaceae contains many genera like Solanum, Datura, Petunia and Nicotiana. (bankofbiology.com)
  • The family is composed of 41 genera and about 170 species. (animaldiversity.org)
  • but the degrees of modification which the different groups have undergone, have to be expressed by ranking them under different so-called genera, sub-families, families, sections, orders, and classes. (what-when-how.com)
  • The Holothuroidea include the sea cucumbers, echinoderms in which the characteristic pentaradial symmetry of the phylum has been superimposed by a secondary bilaterality. (fieldofscience.com)
  • Collette, Bruce B. (2004) Family Hemiramphidae Gill 1859 - halfbeaks. (wikimedia.org)
  • Secreted from neighboring tissues, signaling molecules of the Wnt, Fgf, and Bmp families cooperate to activate a distinct combination of transcription factors at the neural plate border. (biomedcentral.com)
  • Morphological characters alone, however, have obvious limitations in determining phylogeny within the animal kingdom. (what-when-how.com)
  • Pax2/5/8 -expressing cells are present in regions where the future sensory cells such as the polyplacophoran esthetes are situated and hence Pax2/5/8 expression probably predates sensory cell development during ontogeny. (biomedcentral.com)
  • E.g. order polymoniales contains families such as Solanaceae, convolvulaceae etc. (bankofbiology.com)
  • The mammoths (Proboscidea) are an order of mammals that today with the African elephant , the forest elephant and the Asian elephant three types within a family , the elephant belonging. (zxc.wiki)
  • The families and their members reflect the diversity of the proboscis. (zxc.wiki)
  • Molluscs constitute the second largest, Precambrian-originated animal phylum and have ancient, uncharacterized homomorphic sex chromosomes. (nature.com)
  • Mollusks represent the largest lophotrochozoan phylum and exhibit highly diverse body plans. (biomedcentral.com)
  • The family boasts the largest bats in the world. (animaldiversity.org)
  • With benefit of the growth in genome- and transcriptome-predicted proteomes of a much wider range of animal species, examination of TSPs throughout metazoan phyla has revealed extensive conservation of subgroup B-type TSPs in invertebrates. (bvsalud.org)
  • Early book of whole duty chapter and transcription in a surgical Illinois family. (palemoon.com)
  • It is member of the globin protein family that is characterized by a conserved fold that includes a heme prosthetic group, by which the proteins reversibly bind O 2 [ 1 , 3 ]. (biomedcentral.com)
  • It is a member of the extinct family Diprotodontidae , which includes other large quadrupedal herbivores. (wikipedia.org)
  • recognized DNA produced validated between Phylogeny and other T, many thing addition, and the analysis in fat body index between the Changes. (stormportal.de)
  • Fig. 1: Phylogeny-scale profiling of scallop sexual systems and sex chromosomes. (nature.com)