Data from: Genome-wide association study for sucrose content and cane yield-related traits in sugarcane (Saccharum spp.) using diverse germplasm globally

Sugarcane breeding programs worldwide remain constrained by the limited availability of robust molecular markers for yield‑ and sugar‑related traits. To address this limitation, we conducted a genome‑wide association study (GWAS) using 397 globally diverse germplasm accessions. Phenotypic data for six yield and sugar traits were obtained from replicated trials at two locations in Guatemala. Genotyping was performed using genotyping‑by‑sequencing (GBS), and sequence reads were aligned to the polyploid sugarcane reference genome R570. GWAS analyses performed with GWASpoly identified 17, 44, and 93 unique SNPs significantly associated with four traits (stalk diameter, stalk height, stalk population, and stalk weight), five traits, and five traits in Playa Grande, San Vicente, and the combined dataset, respectively. Eleven SNPs exhibited consistent associations with stalk diameter, stalk population, and tons cane per hectare across both locations. Fourteen significant SNPs colocalized with 12 putative genes implicated in Brix, stalk diameter, stalk population, and tons cane per hectare. These results provide high‑confidence loci and candidate genes that can advance the development of informative molecular markers to accelerate genetic improvement and cultivar development in sugarcane.

[
  "005:18"
]

{
  "fn": "Islam, Md",
  "hasEmail": "mailto:md.islam@usda.gov"
}

[
  {
    "@type": "dcat:Distribution",
    "title": "5391_Genotype_Dosage_GWASpoly.csv",
    "format": "csv",
    "mediaType": "text/csv",
    "downloadURL": "https://ndownloader.figshare.com/files/65967524"
  }
]

[
  "GWAS",
  "Genotype",
  "Sugarcane"
]

[
  "005:040"
]

{
  "name": "Agricultural Research Service",
  "@type": "org:Organization"
}