Proximal grain composition of 240 globally diverse chickpea lines

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The proximal composition (starch, protien, soluble sugars, lipid, insoluble fiber, and moisture) of 240 varieties of chickpea (Cicer arietinum) sourced from the ICRISAT genebank.
Data is linked to the publication "GWAS of chickpea grain macronutrient and lipidomic profiles from a global diversity panel" Buck et. al. 2025
Lineage: Chickpea grain was grown under common glasshouse conditions then de-hulled and ground into flour for analysis.
Protein was measured by bradford assay.
Soluble sugars were extracted by 80% ethanol and measured by anthrone.
Starch was measured on sugar extracted pellet through digestion and measurement with GOPOD according to a megazyme kit.
The remaining pellet was digested with proteinase K, washed and dried to yield total insoluble fibre.
Lipids were extracted by chloroform:methanol, with phases separated by ammonium acetate, extracts were dried and weighed.
Moisture was measured by drying flours at 40 degrees for a week.
All samples were measured in triplicate. Values presented are the mean and SE of three technical replicates.
Region of Origin classifications are based on Igolkina et al. 2023