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June 14, 2026Frontiers in Plant ScienceOpen Access

Genomic insights into Lolium multiflorum diversity for forage breeding in Andean livestock systems

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Authors

LBLeidy G. BobadillaRORodomiro OrtízGCGianmarco Castillo

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Overview

Randomized trial assesses genomic diversity in Lolium multiflorum, indicating implications for forage breeding in Andean livestock systems.

Key Points

  • This study aims to evaluate the genetic diversity and population structure of Lolium multiflorum to inform breeding programs.
  • Assessed 27 accessions of L. multiflorum using genotyping-by-sequencing (GBS).
  • Conducted Principal Coordinate Analysis and Unweighted Pair Group Method analyses to identify genetic groups.
  • Calculated molecular variance and inbreeding coefficients to understand genetic variation within and between populations.
  • Identified two distinct genetic groups with 90% of genetic variation occurring within populations (PhiPT = 0.099, p < 0.006).
  • Observed negative inbreeding coefficients (F IS) indicating an excess of heterozygotes: Cajamarca = -0.2312; Amazonas = -0.5489.
  • High observed heterozygosity (Ho > 0.57) suggests potential hybrid vigor and a stable genetic equilibrium.

Cite This Study

Bobadilla et al. (2026) studied this question.

synapsesocial.com/papers/6a2e4429b1cc60ccdea8a11ahttps://doi.org/10.3389/fpls.2026.1818688
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