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Web URL(s):https://www.dl.sciencesocieties.org/publications/cs/articles/41/5/1485
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https://www.dl.sciencesocieties.org/publications/cs/pdfs/41/5/1485
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Publication Type:
i
Refereed
Author(s):Frisch, Matthias; Melchinger, Albrecht E.
Author Affiliation:Institute of Plant Breeding, Seed Science, and Population Genetics, University of Hohenheim, Stuttgart, Germany
Title:Marker-assisted backcrossing for introgression of a recessive gene
Section:Crop breeding, genetics & cytology
Other records with the "Crop breeding, genetics & cytology" Section
Source:Crop Science. Vol. 41, No. 5, September/October 2001, p. 1485-1494.
Publishing Information:Madison, WI: Crop Science Society of America
# of Pages:10
Keywords:TIC Keywords: Genetic markers; Genetics; Introgression; Breeding improvement; Genes; Breeding program; Genotypes; Backcrossing
Abstract/Contents:"Molecular markers are used to trace the presence of target genes (foreground selection) and accelerate recovery of the recurrent parent genome (background selection) in backcross programs. In this study, we present an approach for introgression of a recessive target gene from a donor into the genetic background of a recipient line by foreground selection combined with background selection for reducing the donor chromosome segment around the target gene. The goal of the proposed breeding plan is to generate with a given probability, q2, up to the second backcross generation (BC2) at least kā‰„1 individuals, which carry the target gene and are homozygous for the recurrent parent alleles at flanking markers, by means of a minimum number of individuals. We provide formulas for calculation of (i) the population size required in generation BC1 and (ii) the probability of success q2 of the breeding program in generation BC2. The latter depends on the number and genotype of the BC1 individuals selected for further backcrossing and the size of their BC2 families. The optimum allocation of individuals to generations BC1 and BC2 was determined by computer simulations for various map distances between the target gene and the flanking markers. Our approach is demonstrated by a numerical example and can assist breeders in the optimum design of breeding programs for marker-assisted introgression of a recessive gene."
Language:English
References:20
Note:Includes appendices, "Appendix A: Obtaining k individulas of genotype g+ Īµ G+ or t+ Īµ T+", p. 1493; and "Appendix B", p. 1496
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ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Frisch, M., and A. E. Melchinger. 2001. Marker-assisted backcrossing for introgression of a recessive gene. Crop Sci. 41(5):p. 1485-1494.
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Web URL(s):
https://www.dl.sciencesocieties.org/publications/cs/articles/41/5/1485
    Last checked: 05/05/2017
    Access conditions: Item is within a limited-access website
https://www.dl.sciencesocieties.org/publications/cs/pdfs/41/5/1485
    Last checked: 05/05/2017
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
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