Methodological approaches for estimating radiosensitivity in <i>Quillaja saponaria</i> : comparison of LD <sub>50</sub> models and a PCA-based integrative index
PURPOSE: estimates. MATERIAL & METHODS: values were derived from individual morphometric traits. In addition, a multivariate approach based on Principal Component Analysis was applied to integrate multiple growth related variables into a single radiosensitivity index. RESULTS: value of 89 Gy, capturing the combined phenotypic impact of radiation on early seedling development. CONCLUSION: Growth based multivariate integration provides a more robust and biologically meaningful framework for radiosensitivity assessment than conventional binary endpoints. The Principal Component Analysis offers an integrative radiosensitivity estimator, supporting its use as a reference threshold for future studies based on ionizing radiation in woody species.
Authors
- Martina Ruíz
- Doris Ly
- Tamara Vera
- Daniel Villegas (ORCID: https://orcid.org/0000-0001-6756-4140)
- María Pinto Molina (ORCID: https://orcid.org/0000-0002-4485-7036)
- Jorge González
- Laura Koch
- Patricio Rojas
- Macarena Fuica
Institutions
- Pontificia Universidad Católica de Valparaíso (CL)
- Comisión Chilena de Energía Nuclear (CL)
- Millennium Institute of Oceanography (CL)
Publication Details
- Journal
- International Journal of Radiation Biology
- Published
- 2026-04-14
- DOI
- https://doi.org/10.1080/09553002.2026.2654430
- Primary Topic
- Genetic diversity and population structure
- Type
- article
- Field-Weighted Citation Impact
- 0.00