Full TGIF Record # 274908
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Web URL(s):http://www.grasslandoregon.com/assets/molecular-breeding-of-forage-and-turf.pdf#page=70
    Last checked: 09/02/2016
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Author(s):Rao, Kovi Mallikarjuna [Kovi, Rao Mallikarjuna]; Sandve, Simen R.; Ashild, Ergon [Ergon, Ashild]; Bruno, Studer [Studer, Bruno]; Torben, Asp [Asp, Torben]; Matthew, Kent [Kent, Matthew]; Rognli, Odd Arne
Author Affiliation:Rao [Kovi], Sandve, Ashild [Ergon], and Rognli: Department of Plant and Environmental Sciences; Matthew [Kent]: Centre for Integrative Genetics (CIGENE), Norwegian University of Life Sciences, As, Akershus, Norway; Bruno [Studer] and Torben [Asp]; Department of Genetics and Biotechnology, Faculty of Agricultural Sciences (DJF), Aarhus University, Flakkebjerg, Slagelse, Denmark
Title:Genetic characterization and linkage disequilibrium in five Lolium perenne populations using genic SNP markers
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. 70.
# of Pages:1
Publishing Information:s.l.: s.n.
Keywords:TIC Keywords: Alleles; Cold resistance; Comparisons; Cultivar evaluation; Genetic analysis; Genetic characterization; Genetic diversity; Lolium perenne; Molecular markers
Cultivar Names:Arsenal; Toronto; FuRa9805; Fagerlin; FuRa0575-79
Abstract/Contents:"Predicted climate changes with higher temperatures and longer growth will make it possible to extend the cultivation of perennial ryegrass further north in Europe. However, climate change might lead to more unstable winter climates and winter survival of perennial ryegrass need to be improved in order to be successful in these regions. Using a population mixtures of 5 diverse populations, i.e. two European cultivars (Arsenal and Toronto), one Norwegian cultivar (Fagerlin), and two Norwegian breeding populations (FuRa0575-79 and FuRa9805), grown at several field locations covering a wide range of latitudes and climatic conditions in Norway, we aim to establish marker-trait associations by investigating shifts in allele frequencies of molecular markers. In order to establish the number and distribution of markers necessary for detecting allelic shifts we estimated linkage disequilibrium (LD) within and among the cultivars/populations. Forty genotypes from each of the 5 cultivars/populations were genotyped at 278 genic SNP loci selected across seven linkage groups. In general low LD was observed and LD decay was rapid although some differences were observed among cultivars/populations and linkage groups. As expected LD was correlated with the effective population size; lower LD was observed in Arsenal (based on a polycross between 40 clones selected from the cultivars Abersilo and Respect) compared with Toronto (based on a polycross between 10 clones from the population SLp 91-136). Analysis of population structure indicated two sub- populations within Arsenal and Fura9805, and three sub-populations within Toronto, Fura0575-79 and Fagerlin. Allele frequencies, genetic diversity, polymorphic information content were estimated within the cultivars/populations and will be presented. This is the first report of genome wide high throughput genotyping using genic L. perenne SNPs. Strategies for detecting allelic shifts in samples from field populations will be discussed."
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):
Kovi, R. M., S. R. Sandve, A. Ergon, B. Studer, T. Asp, M. Kent, et al. 2012. Genetic characterization and linkage disequilibrium in five Lolium perenne populations using genic SNP markers. Proceedings of the 7th International Symposium on the Molecular Breeding of Forage and Turf. p. 70.
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http://www.grasslandoregon.com/assets/molecular-breeding-of-forage-and-turf.pdf#page=70
    Last checked: 09/02/2016
    Requires: PDF Reader
    Notes: Item is within a single large file
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