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Genome-wide association mapping identifies markers associated with cane yield components and sucrose traits in the Louisiana sugarcane core collection

Fickett, Nathanael ; Gutierrez, Andres ; Verma, Mohit ; Pontif, Michael ; Hale, Anna ; Kimbeng, Collins ; Baisakh, Niranjan

Genomics (San Diego, Calif.), 2019-12, Vol.111 (6), p.1794-1801 [Periódico revisado por pares]

United States: Elsevier Inc

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  • Título:
    Genome-wide association mapping identifies markers associated with cane yield components and sucrose traits in the Louisiana sugarcane core collection
  • Autor: Fickett, Nathanael ; Gutierrez, Andres ; Verma, Mohit ; Pontif, Michael ; Hale, Anna ; Kimbeng, Collins ; Baisakh, Niranjan
  • Assuntos: Chromosome Mapping ; Genetic Markers ; Genome, Plant ; Genome-Wide Association Study ; Genotyping by sequencing ; Linkage Disequilibrium ; Louisiana ; Louisiana core collection ; Plant Breeding ; Polymorphism, Single Nucleotide ; Quantitative Trait, Heritable ; Saccharum - genetics ; Saccharum - metabolism ; SNP ; Sucrose - metabolism ; Sugarcane
  • É parte de: Genomics (San Diego, Calif.), 2019-12, Vol.111 (6), p.1794-1801
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: Sugarcane is an economically important crop for both food and biofuel industries. Marker-assisted breeding in sugarcane is becoming a reality with the recent development and deployment of markers linked with disease resistance genes. Large linkage disequilibrium in sugarcane makes genome-wide association studies (GWAS) a better alternative to biparental mapping to identify markers associated with agronomic traits. GWAS was conducted on a Louisiana core collection to identify marker-trait associations (MTA) for 11 cane yield and sucrose traits using single nucleotide polymorphism (SNP) and insertion-deletion (Indel) markers. Significant (P < .05) MTAs were identified for all traits where the top ranked markers explained up to 15% of the total phenotypic variation. High correlations (0.732 to 0.999) were observed between sucrose traits and 56 markers were found consistent across multiple traits. These markers following validation in more diverse populations could be used in marker-assisted selection of clones in sugarcane breeding program in Louisiana and elsewhere. •Single nucleotide polymorphism and insertion-deletion markers were used in genome-wide association mapping in sugarcane•Markers-trait associations were identified for 11 cane yield components and sucrose traits in a Louisiana core collection•Top-ranked markers, individually explained up to 15% of the total phenotypic variation
  • Editor: United States: Elsevier Inc
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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