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Title: Genome‐wide association and genomic prediction for yield and component traits of Miscanthus sacchariflorus

Journal Article · · Global Change Biology. Bioenergy
DOI: https://doi.org/10.1111/gcbb.13097 · OSTI ID:1999273
ORCiD logo [1];  [2]; ORCiD logo [1];  [3];  [4];  [5];  [3];  [4];  [4];  [6]; ORCiD logo [7];  [8];  [3];  [9];  [10];  [4];  [11]; ORCiD logo [3];  [11];  [11] more »;  [12]; ORCiD logo [1];  [1] « less
  1. University of Illinois, Urbana‐Champaign, IL (United States)
  2. Seattle Children's Research Institute, WA (United States)
  3. Hokkaido University, Sapporo (Japan)
  4. Vavilov All-Russian Institute of Plant Genetic Resources, St. Petersburg (Russian Federation)
  5. FSBSI “FSC of Agricultural Biotechnology of the Far East named after A.K. Chaiki”, Ussuriisk (Russian Federation)
  6. Konkuk University, Seoul (Korea)
  7. Zhejiang University, Hangzhou (China)
  8. Utah State University, Logan, UT (United States)
  9. Spring Valley Agriscience Co. Ltd., Shandong (China)
  10. Schroll Medical ApS, Årslev (Denmark)
  11. Kangwon National University, Chuncheon (Korea)
  12. Huazhong Agricultural University, Wuhan (China)

Accelerating biomass improvement is a major goal of Miscanthus breeding. The development and implementation of genomic-enabled breeding tools, like marker-assisted selection (MAS) and genomic selection, has the potential to improve the efficiency of Miscanthus breeding. The present study conducted genome-wide association (GWA) and genomic prediction of biomass yield and 14 yield-components traits in Miscanthus sacchariflorus. We evaluated a diversity panel with 590 accessions of M. sacchariflorus grown across 4 years in one subtropical and three temperate locations and genotyped with 268,109 single-nucleotide polymorphisms (SNPs). The GWA study identified a total of 835 significant SNPs and 674 candidate genes across all traits and locations. Of the significant SNPs identified, 280 were localized in mapped quantitative trait loci intervals and proximal to SNPs identified for similar traits in previously reported Miscanthus studies, providing additional support for the importance of these genomic regions for biomass yield. Our study gave insights into the genetic basis for yield-component traits in M. sacchariflorus that may facilitate marker-assisted breeding for biomass yield. Genomic prediction accuracy for the yield-related traits ranged from 0.15 to 0.52 across all locations and genetic groups. Prediction accuracies within the six genetic groupings of M. sacchariflorus were limited due to low sample sizes. Nevertheless, the Korea/NE China/Russia (N = 237) genetic group had the highest prediction accuracy of all genetic groups (ranging 0.26–0.71), suggesting that with adequate sample sizes, there is strong potential for genomic selection within the genetic groupings of M. sacchariflorus. This study indicated that MAS and genomic prediction will likely be beneficial for conducting population-improvement of M. sacchariflorus.

Research Organization:
Center for Advanced Bioenergy and Bioproducts Innovation (CABBI), Urbana, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Science (SC), Biological and Environmental Research (BER); National Science Foundation (NSF); USDOE
Grant/Contract Number:
SC0018420; SC0012379; 1661490
OSTI ID:
1999273
Alternate ID(s):
OSTI ID: 2202704; OSTI ID: 2428886
Journal Information:
Global Change Biology. Bioenergy, Vol. 15, Issue 11; ISSN 1757-1693
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

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