Journal cover Journal topic
Archives Animal Breeding Archiv Tierzucht
Journal topic

Journal metrics

IF value: 0.991
IF0.991
IF 5-year value: 1.217
IF 5-year
1.217
CiteScore value: 2.0
CiteScore
2.0
SNIP value: 1.055
SNIP1.055
IPP value: 1.27
IPP1.27
SJR value: 0.425
SJR0.425
Scimago H <br class='widget-line-break'>index value: 28
Scimago H
index
28
h5-index value: 13
h5-index13
Supported by
Logo Leibniz Institute for Farm Animal Biology Logo Leibniz Association
Volume 56, issue 1
Arch. Anim. Breed., 56, 518–526, 2013
https://doi.org/10.7482/0003-9438-56-050
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.
Arch. Anim. Breed., 56, 518–526, 2013
https://doi.org/10.7482/0003-9438-56-050
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.

  10 Oct 2013

10 Oct 2013

Management of genetic diversity using gene dropping method based on pedigree information

M. Khaldari1, A. N. Javaremi2, A. Pakdel2, H. M. Yeganeh2, and P. Berg3 M. Khaldari et al.
  • 1Department of Animal Science, Faculty of Agriculture, Lorestan University, Khorram-Abad, Iran
  • 2Department of Animal Science, Faculty of Agriculture, University of Tehran, Karaj, Iran
  • 3Department of Genetics and Biotechnology, Faculty of Agricultural Sciences, Aarhus University, Research Center Foulum, Tjele, Denmark

Abstract. Preservation of genetic diversity in populations is an important task to ensure a possible longterm response to selection in animal breeding. The purpose of this study was to consider how pedigree analysis and gene dropping method could be used for management plans in order to maintain genetic variation in a population under selection of Japanese quail. Therefore, the distributions of alleles frequencies originated from founders were estimated on an actual pedigree using gene dropping simulation software. Then, genetic contribution of founders to the current population, components such as the F-statistics and effective population size were estimated. The results show that from 156 founders there are only 64 of them (22 males and 42 females) in the last generation. The average genetic contribution of a founder male and female contributing to the last generation were 1.87 and 1.40 %, respectively. A total of 87 and 95 % of the genome in the last generation were constituted by 34 and 42 founders, respectively. The effective population size decreased as inbreeding increases. The allele frequency averaged over replicates agreed with the genetic contribution. Some useful information regarding the management of genetic diversity such as the probability of allele extinction, the probability of alleles surviving at a critically low frequency and risk of future allele extinction were derived by using these distributions. Results show that pedigree analysis and gene dropping are valuable tools in optimizing decisions to preserve genetic variability.

Download
Citation