AI Article Synopsis
- * A study evaluated seven yield-related traits in 159 diverse sugarcane genotypes, finding significant genetic variation and heritability, and revealing 47 SNPs linked to brix and 138 SNPs for other traits across multiple QTLs.
- * The research identified 12 stable QTLs with 35 candidate genes associated with yield traits, providing valuable information for marker-assisted breeding to enhance sugarcane productivity.
Article Abstract
Sugarcane, a major sugar and energy crop worldwide faces an increasing demand for higher yields. Identifying yield-related markers and candidate genes is valuable for breeding high-yield varieties using molecular techniques. In this work, seven yield-related traits were evaluated in a diversity panel of 159 genotypes, derived from , , and modern sugarcane genotypes. All traits exhibited significant genetic variance with high heritability and high correlations. Genetic diversity analysis reveals a genomic decay of 23 kb and an average single nucleotide polymorphism (SNP) number of 25,429 per genotype. These 159 genotypes were divided into 4 subgroups. Genome-wide association analysis identified 47 SNPs associated with brix, spanning 36 quantitative trait loci (QTLs), and 138 SNPs for other traits across 104 QTLs, covering all 32 chromosomes. Interestingly, 12 stable QTLs associated with yield-related traits were identified, which contained 35 candidate genes. This work provides markers and candidate genes for marker-assisted breeding to improve sugarcane yields.
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| http://dx.doi.org/10.1021/acs.jafc.3c02935 | DOI Listing |
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