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Genomic Selection for agronomic important traits in two-rowed winter barley

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  • Theresa Ankamah-Yeboah, University of Copenhagen
  • ,
  • A M Torp, The Royal Vet. and Agricultural University, Denmark
  • Jens Due Jensen, Nordic Seed, Holeby, Denmark
  • Luc Janss
  • S.K. Rasmussen, University of Copenhagen, Denmark
Genomic selection, a process where all marker effects covering the entire genome are simultaneously estimated to calculate genomic estimated breeding values (GEBVs) of individuals for selection is reported as a promising tool for accelerating genetic gains in polygenic traits. Its incorporation in plant breeding is more of a reality now than it was some few years ago through the advancement in statistical analysis as well as technologies for genomic studies. Previous simulation studies as well as studies of empirical data have shown a great potential of this tool in barley breeding. This study aims at developing genomic
prediction models for seed quality traits in winter barley and identifying the genes controlling these traits. Data on protein content, seed specific weight and seed fractions (of 2.8mm, 2.5mm and 2.2mm diameter) were used. The data used was collected on 184 elite winter barley lines originating from a commercial
breeding program. These lines had been grown at three different locations in Denmark and genotyped using the barley 9K iSelect SNP chip.
Here we report findings from the comparison of different statistical models for their prediction abilities in the quality traits mentioned above. Results from association study performed to identify the genomic regions associated with these polygenically controlled traits would also be reported.incredible tool for accelerating genetic gains. Its incorporation in plant breeding is more of a reality now than it was some few years ago through the advancement in statistical analysis as well as technologies for genomic studies. Previous simulation studies as well as studies of empirical data have shown a great potential of genomic selection in barley breeding. Here we report results from the comparison of different statistical models for their prediction abilities in agronomic traits such as protein content, seed specific weight and seed fraction weight of elite winter barley lines originating from a commercial breeding program. Furthermore, we also report on an association study performed to identify the genomic regions
associated with these three polygenically controlled traits.
Original languageEnglish
Publication year2016
Publication statusPublished - 2016
Event12th International Barley Genetics Symposium - Commons Hotel, University of Minnesota’s East Bank, Minneapolis, United States
Duration: 26 Jun 201630 Jun 2016
http://ibgs2016.org

Conference

Conference12th International Barley Genetics Symposium
Location Commons Hotel, University of Minnesota’s East Bank
CountryUnited States
CityMinneapolis
Period26/06/201630/06/2016
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