What's the difference between introgression and species?

Introgression


Definition:

  • (n.) The act of going in; entrance.

Example Sentences:

  • (1) In the present study, the wild-type alleles at the tol locus were introgressed reciprocally, from N. crassa into N. tetrasperma and from N. tetrasperma into N. crassa, to investigate the action of these alleles in the A+a heterokaryon incompatibility systems of these species.
  • (2) oleifera line (W1) was generated by introgressing the S-locus from a self-incompatible B. campestris plant into the Westar cultivar.
  • (3) Some of these populations appear to have been established through the introgression of other populations that previously had been isolated.
  • (4) No hybrids or introgressed individuals were observed between P. decipiens C and either A or B.
  • (5) The molecular characteristics confirm that the mutated gene of 2994 originated from N. intermedia and was introgressed into N. crassa.
  • (6) One F1 hybrid was observed between P. decipiens A and B, but this apparently does not lead to any gene exchange between the two species, which do not show any evidence of introgression.
  • (7) Gene flow appears to have been bidirectional, with greater genetic introgression into mule deer.
  • (8) Introgression of a bactrianus Y chromosome into the territory of castaneus was found in Indonesia.
  • (9) To construct a fish strain which is highly susceptible to mutagenic carcinogens, we introduced a particular regulatory gene, ie an oncosuppressor gene (Bs), into the genome of the animals developing Mendelian inherited melanoma, by introgressive breeding.
  • (10) A previous study showed that no Y chromosome introgression occurs.
  • (11) The development of easily scoreable genetic markers in Arachis will facilitate the introgression of desirable traits from wild species into adapted germplasm.
  • (12) bactrianus specimens had both Y Chrs, possibly owing to the introgression of a musculus-type Y into this population.
  • (13) This could explain the differential introgression between autosomal loci.
  • (14) The Cape York race retains characteristics of an ancestral stock of Petrogale and its genic similarity with P. g. godmani could therefore be the result of extensive introgression.
  • (15) Unlike findings for other populations of these species, we find little evidence of mitochondrial introgression between D. pseudoobscura and D. persimilis, despite their ability to produce fertile hybrid females.
  • (16) In the early generations, it is shown that increasing the number of markers over three per non-carrier chromosome is not efficient, that the segment surrounding the introgressed gene is better controlled by rather distant markers unless high selection intensity can be applied, and that selection on this segment first can reduce the selection intensity available for selection on non-carrier chromosomes.
  • (17) The length of introgressed segments producing sterility was progressively reduced through repeated backcrosses.
  • (18) The absence of variation among t haplotypes could mean that this ancestral chromosome existed relatively recently, in which case it would be necessary to postulate introgressions of t haplotypes across species lines to explain their presence in both Mus domesticus and M. musculus.
  • (19) Our results suggest that c-onc probes are suitable markers to unequivocally identify F1 hybrids and backcrosses and to quantify introgression in natural populations of fishes.
  • (20) Segments of equal size frequently produce similar abnormalities, whose severity increases with the size of the introgressed segment.

Species


Definition:

  • (n.) Visible or sensible presentation; appearance; a sensible percept received by the imagination; an image.
  • (n.) A group of individuals agreeing in common attributes, and designated by a common name; a conception subordinated to another conception, called a genus, or generic conception, from which it differs in containing or comprehending more attributes, and extending to fewer individuals. Thus, man is a species, under animal as a genus; and man, in its turn, may be regarded as a genus with respect to European, American, or the like, as species.
  • (n.) In science, a more or less permanent group of existing things or beings, associated according to attributes, or properties determined by scientific observation.
  • (n.) A sort; a kind; a variety; as, a species of low cunning; a species of generosity; a species of cloth.
  • (n.) Coin, or coined silver, gold, ot other metal, used as a circulating medium; specie.
  • (n.) A public spectacle or exhibition.
  • (n.) A component part of compound medicine; a simple.
  • (n.) An officinal mixture or compound powder of any kind; esp., one used for making an aromatic tea or tisane; a tea mixture.
  • (n.) The form or shape given to materials; fashion or shape; form; figure.

Example Sentences:

  • (1) The variation in thickness of the LLFL may modulate the species causing damage to the cells below it.
  • (2) Comparison of the S100 alpha-binding protein profiles in fast- and slow-twitch fibers of various species revealed few, if any, species- or fiber type-specific S100 binding proteins.
  • (3) The data indicate that ebselen is likely to be useful in the therapy of inflammatory conditions in which reactive oxygen species, such as peroxides, play an aetiological role.
  • (4) These membrane perturbation effects not observed with bleomycin-iron in the presence of a hydroxyl radical scavenger, dimethyl thiourea, or a chelating agent, desferrioxamine, were correlated with the ability of the complex to generate highly reactive oxygen species.
  • (5) When compared with lissencephalic species, a great horizontal fibrillary system (which is vertically arranged in gyral regions) was observed in convoluted brains.
  • (6) The TxA2 antagonistic effects of KW-3635 were compared with that of daltroban in PRP from various animals species.
  • (7) Only the approximately 2.7 kb mRNA species was visualized in Northern blots of total cellular and poly(A+) RNA isolated from cardiac ventricular muscle.
  • (8) Comparison of developmental series of D. merriami and T. bottae revealed that the decline of the artery in the latter species is preceded by a greater degree of arterial coarctation, or narrowing, as it passes though the developing stapes.
  • (9) The immunological methods based on the use of a flagellum-specific serum have confirmed the presence of a common flagellum antigen for all Legionella species described to date.
  • (10) This observation not only provides definitive evidence for the photogeneration of O2-, but also indicates that only a fraction of this species is transformed into H2O2 in the absence of SOD.
  • (11) To further characterize the molecular forms of GnRH in each species, the extracts were injected into a high pressure liquid chromatograph (HPLC).
  • (12) Each species has approximately 500 core histones cluster repeats per haploid genome.
  • (13) After immunoadsorbent purification, the final step in a purification procedure similar to that adopted for colon cancer CEA, two main molecular species were identified: 1) Material identical with colon cancer CEA with respect to molecular size, PCA solubility, ability to bind to Con A, and most important the ability to bind to specific monkey anti-CEA serum.
  • (14) Both of these species belong to the serotype B. MCAs T11 and T15, the first recorded with a specificity for only sub-serotype A2 EF, were tested further against 28 sub-serotype A2 and three sub-serotype A2B2EFs from L. tropica strains.
  • (15) The results suggest that involucrin-like proteins have a wider species distribution than originally appreciated.
  • (16) Sequence specific binding of protein extracts from 13 different yeast species to three oligonucleotide probes and two points mutants derived from Saccharomyces cerevisiae DNA binding proteins were tested using mobility shift assays.
  • (17) The genome characterization of the typing strains for all 13 species of the genus Staphylococcus, included into the Approval List of the Names of Bacterial (1980), is presented.
  • (18) Two lectins, wheat germ agglutinin (WGA) and peanut agglutinin (PNA), were used to compare domains within the interphotoreceptor matrices (IPM) of the cat and monkey, two species where the morphological relationship between the retinal pigment epithelium (RPE) and photoreceptors is distinctly different.
  • (19) The regional distribution of the receptor showed insignificant species differences.
  • (20) Temelastine produces these species-specific changes by enhancing thyroxine clearance from the circulation in the rat, but not in the dog or mouse.

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