ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Asymmetry  (1)
  • Beef cattle population  (1)
  • Springer  (2)
  • American Chemical Society (ACS)
  • International Union of Crystallography
  • Mineralogical Society of Great Britain and Ireland
Collection
Keywords
Publisher
  • Springer  (2)
  • American Chemical Society (ACS)
  • International Union of Crystallography
  • Mineralogical Society of Great Britain and Ireland
Years
  • 1
    Electronic Resource
    Electronic Resource
    Asymmetrical correlated responses to selection under an infinitesimal genetic model (1992)
    Springer
    Theoretical and applied genetics 84 (1992), S. 323-329 
    Details
    ISSN: 1432-2242
    Keywords: Asymmetry ; Correlated response ; Selection ; Infinitesimal model ; Heritability
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Asymmetry in correlated responses to selection is expected when more than one cycle of selection is practised due to changes in genetic parameters produced by selection. In large populations, under the infinitesimal model these changes are due to linkage disequilibrium generated by selection and not to gene frequency changes. This study examines the conditions under which asymmetrical correlated responses are to be expected when an infinitesimal model is considered. Asymmetrical correlated responses in two traits in respect to which trait is selected are expected if the two traits have different heritabilities. Predicted asymmetry increases with the absolute value of the genetic correlation between the two traits, the difference between the two heritabilities, the intensity of selection and the number of generations of selection. Linkage disequilibrium generated by selection should be taken into account in explaining asymmetrical correlated responses observed in selection experiments.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00229490
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    The effect of positive assortative mating on genetic parameters in a simulated beef cattle population (1986)
    Springer
    Theoretical and applied genetics 72 (1986), S. 76-79 
    Details
    ISSN: 1432-2242
    Keywords: Simulation ; Positive assortative mating ; Beef cattle population
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Two simulated data sets, representing random mating and positive assortative mating in a beef cattle population over 10 rounds of mating, were each composed of 100 replicates. Three correlated traits were considered; calving ease (CE), 200 day weight (WW) and postweaning gain (PG). All selection practiced in the simulation was random. Positive assortative mating, which was based on parental WW phenotypic records, increased the progeny additive genetic variance of WW. The absolute values of genetic covariances and correlations between WW with CE and PG were also increased by positive assortative mating. Variances or covariances did not reach their expected equilibrium values due to overlapping generations, low replacement rates and only 10 rounds of mating.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00261458
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...