ArticlePlants (Basel, Switzerland)2026
GWAS of Leaf Morphological and Chlorophyll-Related Traits Provides Genetic Resources for Improving Photosynthetic Traits in Sugarcane.
Article in Plants (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Photosynthesis is the ultimate source of energy for crop productivity, and leaf morphology as well as chlorophyll content are traditional, indirectly related traits of photosynthesis. However, the genetic basis of these traits remains unexplored in sugarcane. In this study, we conducted genome-wide association studies (GWAS) to identify loci controlling nine photosynthesis-related traits, including four leaf morphological traits (leaf length, leaf width, leaf ratio, and leaf area) and five chlorophyll-related traits (chlorophyll a, chlorophyll b, chlorophyll a/b ratio, total chlorophyll, and SPAD value). The analysis was performed using whole-genome resequencing data from 219 elite, globally diverse sugarcane materials evaluated at two locations across two years (four environments). Based on 5,964,084 high-quality single nucleotide polymorphisms (SNPs), we identified 308 GWAS-significant SNPs (
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