Uncovering superior alleles and genetic loci for yield-related traits in mungbean (Vigna radiata L. Wilczek) through a genome-wide association study.
Zaman MSU, Iqbal MS, Azam MG, Alam MJ, Prodhan MA
Crop Improvement
Mungbean sprouts you grow on your kitchen counter or toss into stir-fries come from a crop so yield-limited that researchers had to comb through hundreds of varieties just to find a handful worth breeding from — and now they have a genetic map to do it faster.
Researchers tested nearly 300 different mungbean varieties over three years to find which ones grow best and produce the most seeds. They used genetic fingerprinting to pinpoint 18 spots on the mungbean's DNA that influence traits like flowering time, plant height, and how many seeds a plant makes. Five standout varieties were identified that carry the best combinations of these genetic advantages, giving plant breeders a shortlist for developing better mungbean varieties.
Key Findings
18 significant DNA markers across 6 chromosomes were linked to yield-related traits including flowering time, plant height, pods per plant, 100-seed weight, and seed yield.
Five genotypes (G91, G106, G107, G125, G130) were identified as carrying the highest number of favorable alleles and superior yield performance.
Genomic prediction models achieved over 30% accuracy for 100-seed weight and seed yield, demonstrating early potential for computer-assisted breeding.
chevron_right Technical Summary
Scientists identified specific genetic markers and superior seed varieties in mungbean that could help breeders develop higher-yielding crops, addressing a key food security challenge in South and Southeast Asia.
Abstract Preview
Mungbean is a key warm-season legume crop in South and Southeast Asia, but its low productivity, driven by limited genetic diversity, necessitates dissecting the phenotypic diversity and genetic ba...
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The mung bean or green gram is a plant species in the legume family. It is mainly cultivated in East, Southeast, and in South Asia and used as an ingredient in both savoury and sweet dishes.