(n.) The history of the individual development of an organism; the history of the evolution of the germ; the development of an individual organism, -- in distinction from phylogeny, or evolution of the tribe. Called also henogenesis, henogeny.
Example Sentences:
(1) The effects of postnatal methyl mercury exposure on the ontogeny of renal and hepatic responsiveness to trophic stimuli were examined.
(2) These results suggest that ED2+ macrophages, TRPM-3+ macrophages, and Ia+ dendritic cells are distinct cell lines that pursue independent developmental process in spleen ontogeny.
(3) We have studied the postnatal ontogeny of creatine kinase (CK) and the glycolytic enzymes phosphoglycerate kinase (PGK), phosphoglycerate mutase (PGM), enolase (En), and pyruvate kinase (PK) in rat brain and uterus.
(4) Experiments were conducted in a group of pigs to determine the ontogeny of antigen specific IgA in the trachea.
(5) More and more of ontogeny has been taken over for eruption.
(6) The results suggest that normal development of some invertebrate neural pathways may be more dependent on experience during ontogeny than has previously been assumed.
(7) During ontogeny, the number of these cells gradually increased.
(8) In studies of the ontogeny of fibroblast-epithelial interactions during late fetal lung rat lung development, we have identified two subpopulations of fibroblasts which differed in their ability to promote epithelial cell proliferation or differentiation.
(9) In ontogeny, Ia+ dendritic cells were not stained with ED2 or TRPM-3.
(10) This difference was observed throughout ontogeny up to 15 mo of age, and was associated with increased levels of IL 2 activity in the culture supernatants.
(11) The present study investigated the ontogeny of 3H-uridine incorporation into RNA as a measure for RNA synthesis in preimplantation porcine embryos from the two-cell stage up to the stage of the newly hatched blastocyst.
(12) Recent advances in hybridoma technology and cellular immunology have facilitated the understanding of the ontogeny, structure, and function of the avian immune system.
(13) The present study was undertaken to assess the functional ontogeny of alpha 2-noradrenergic receptors in the hypothalamic paraventricular nucleus (PVN) that mediate noradrenergic stimulation of feeding in the rat.
(14) The heterogenous ontogeny and binding characteristics of brain and liver T3NR is compatible with the hypothesis that different thyroid hormone receptors are expressed in these tissues.
(15) Furthermore, it can be suggested that the onset may even be in the fetal stage and that lesions of specific neuronal systems occurring in early ontogeny could result in specific abnormality in the higher system which manifest later in development, after these structures reach certain levels of maturation.
(16) In three experiments, the effects of augmenting or blocking dopamine (DA) D-2 receptor activity on the ontogeny of response suppression learning of preweanling rat pups were determined.
(17) Kupffer cells in the liver and endothelial cells of blood vessels stained positively for the enzyme at every stage of ontogeny studied.
(18) The axonal amelin antibody detects a 97 kDa protein in embryonic tissue which diminishes during development; and a 93 kDa protein which is first seen at postnatal day 1 of mouse brain ontogeny, increasing constantly to its adult concentrations.
(19) The expression of T-cell antigen receptors during T-cell ontogeny is an important issue that bears directly on such questions as where T-cell tolerance is acquired, at what stage T cells become susceptible to repertoire selection, and why most thymocytes die within the thymus.
(20) Most importantly, our hypothesis leads to a series of experimentally testable predictions, which should provide considerably greater insight into the ontogeny of NK cells and their relationship to the T-cell lineage.
Phylogeny
Definition:
(n.) The history of genealogical development; the race history of an animal or vegetable type; the historic exolution of the phylon or tribe, in distinction from ontogeny, or the development of the individual organism, and from biogenesis, or life development generally.
Example Sentences:
(1) The sequence data were used to infer phylogeny by using a maximum-parsimony method, an evolutionary-distance method, and the evolutionary-parsimony method.
(2) The only inconsistency in the mariner gene phylogeny is in the placement of the Zaprionus mariner sequence, which clusters with mariner from Drosophila teissieri and Drosophila yakuba in the melanogaster species subgroup.
(3) The unique structure of these cilia has systematic and phylogenetic significance for the Acoela, and it is argued that ultrastructural characters in general, including characters of organelles, can be validly applied to the phylogeny and systematics of the Metazoa.
(4) In general, more than five loci are needed to resolve the species phylogeny.
(5) Genetic control of hormone receptors is analyzed by studying changes in their characteristics during the ontogeny, phylogeny, and malignant transformation of cells.
(6) Ecological changes on the main stem of the phylogeny are abrupt and associated character states consequently well differentiated.
(7) The data about genomic and protein sequences could provide bases to complement or expand the rRNA-based phylogeny.
(8) Therefore a primitive symmetrodont molar pattern was probably present in the phylogeny of pantotherian and tribosphenic molars.
(9) Recently published amino acid sequences are compared to those of other cytochromes c. Molecular phylogenies constructed by using an ancestral sequence method are compared to the classical biological view of invertebrate evolution.
(10) Cladistic analysis of likely phylogenies within the neurotrophins shows BDNF and NT-4 to be most closely related whereas NGF may be the sister group to NT-3, BDNF, and NT-4.
(11) The most interesting results of single gene phylogenies have been the anomalies, such as insulin in hystricomorphs or cytochrome c in the rattlesnake.
(12) Legitimacy of the symbiont transfer theory removes the constraint of interpreting presence of cellulolytic protozoa as a synapomorphy between Cryptocercidae and Isoptera, with potential impact on objective resolution of dictyopteran phylogeny.
(13) Phylogenetic trees based on aa sequences and nt sequences are similar, but not completely congruent with rRNA gene-based phylogenies.
(14) Differentiation of various areas of the proximal part of the nephron proceded in phylogeny with different intensity and the maximum specialization was characteristic of the most proximal portion of this part of the nephron.
(15) Three hypotheses are proposed on the relationship between the evolution of the 5.8S rRNA and the phylogeny of Diptera.
(16) The resulting tree is compared with the eubacterial phylogeny built on 16S rRNA catalog comparison.
(17) It is now clear that phagocytically stimulated hemocytes of several molluscan species can generate reactive forms of oxygen; the relevance of this fact for the phylogeny of killing systems operative in leukocytes is discussed.
(18) Given the discrepancies generated by this classification by analogy, we evaluated a classification using a phylogeny congruence analysis of the compositional relatedness of vertebrate PK's.
(19) In the case of explicit morphological phylogenies, ecological and behavioural data can be integrated with them and it may then be possible to decide whether morphological characters are likely to have been elicited by the environments through which the clade has passed.
(20) We have undertaken the construction of a broad molecular phylogeny of protists through the comparison of 28S rRNA molecules.