Heterotic Grouping: A Novel Strategy to Enhance Hybrid Breeding Efficiency in Crop Plants: A Review

Heterosis refers to the increased vigour, yield and overall performance of F1 hybrids compared to their parental lines. Heterotic grouping is an essential strategy in hybrid breeding that aims to classify germplasm lines into distinct groups to maximize heterosis and hybrid performance. Various methods of heterotic grouping include pedigree analysis, combining ability analysis, phenotypic clustering and marker-assisted heterotic grouping. Pedigree analysis classifies lines based on their genetic background and ancestral information. Combining ability analysis is a widely used approach that classifies lines based on their performance in hybrid combinations. Phenotypic clustering utilizes multivariate analysis to classify germplasm based on agronomic and morphological characters. Marker-assisted heterotic grouping involves various molecular markers like RFLP, AFLP, RAPD, SSR and SNP. Advances in genetic mapping techniques and incorporating genomic selection may improve the understanding and precision of heterotic grouping. Heterotic grouping is a powerful strategy in hybrid breeding that enables breeders to efficiently create superior hybrids by exploiting genetic diversity and heterosis.

• Publication year

  2025

• Venue

  Agricultural Reviews

• Publication date

  2025-11-10

• Fields of study

  Not labeled

• Identifiers
  DOI 10.18805/ag.r-2812
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

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