From genes to farms: a modern breeding revolution.

Pyramiding favourable alleles for plant architecture and dense planting across 108 maize hybrids improved hybrid yield, showing measurable gains in modern breeding eras.

• Why it matters: Crop breeding needs faster ways to meet rising food demand by selecting genetic variants that improve stand structure without sacrificing yield.
• What they did: Yao et al. analysed 108 maize hybrids spanning three breeding eras, then introgressed favourable alleles into elite parental lines while retaining yield-related alleles.
• The result: The resulting hybrids showed measurable yield gains, indicating that allele pyramiding can translate historical genetic signals into improved performance.

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