Full TGIF Record # 274903
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Web URL(s):http://www.grasslandoregon.com/assets/molecular-breeding-of-forage-and-turf.pdf#page=58
    Last checked: 09/02/2016
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Author(s):Byrne, Stephen; Panitz, Frank; Bendixen, Christian; Studer, Bruno; Jensen, Christian; Asp, Torben
Author Affiliation:Byrne: Department of Molecular Biology and Genetics; Studer and Asp: Institute of Molecular Biology and Genetics, Aarhus University, Slagelse; Panitz and Bendixen: Department of Molecular Biology and Genetics, Research Centre Foulum, Aarhus University , Tjele; Jensen: DLF-TRIFOLIUM A/S, Research Division, Store Heddinge, Denmark
Title:Using a genotype by sequencing approach to estimate the extent of LD in a perennial ryegrass association population
Section:Other invited oral presentation abstracts
Other records with the "Other invited oral presentation abstracts" Section
Meeting Info.:Salt Lake City, Utah: June 4-7, 2012
Source:Proceedings of the 7th International Symposium on the Molecular Breeding of Forage and Turf. 2012, p. 58.
# of Pages:1
Publishing Information:s.l.: s.n.
Keywords:TIC Keywords: Genetic analysis; Genotyping; Lolium perenne
Abstract/Contents:"Knowledge on Linkage Disequilibrium (LD) is important when considering genotyping strategies for genomic selection. A rapid decay of LD necessitates the need for a higher marker density to enable markers to capture the entire phenotypic variation in the population. Outbreeding species with large effective population sizes are expected to have very low levels of LD. We have utilised a draft assembly of the perennial ryegrass genome to assess the extent of genome wide LD in a perennial ryegrass association population. The population consists of 172 single individuals originating from 72 varieties and 22 ecotypes, and there is a 92, 82 split between forage and turf types. The population was genotyped using a genotype by sequencing approach with the restriction enzyme APEKI (5bp cutter). Sequence tags were mapped onto scaffolds from the draft genome assembly that were greater than 10Kb in size, in order to identify SNPs with various minor allele frequencies. The genotypes were determined for each individual at these SNP sites, and used to calculate the squared correlation of allele frequencies between SNP pairs falling within the same genomic scaffold. This allowed us to estimate the rate of LD decay over distances up to 100Kb."
Language:English
References:0
Note:This item is an abstract only!
"ISBN: 978-1-4675-4762-8"
"MBFT2012"
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Byrne, S., F. Panitz, C. Bendixen, B. Studer, C. Jensen, and T. Asp. 2012. Using a genotype by sequencing approach to estimate the extent of LD in a perennial ryegrass association population. Proceedings of the 7th International Symposium on the Molecular Breeding of Forage and Turf. p. 58.
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Web URL(s):
http://www.grasslandoregon.com/assets/molecular-breeding-of-forage-and-turf.pdf#page=58
    Last checked: 09/02/2016
    Requires: PDF Reader
    Notes: Item is within a single large file
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