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Crear grandes poblaciones Co-γ para la genómica funcional y la cría en el trigo

Qunqun Hao^1,2, Simeng Ma¹, Jifa Zhang^2,3

¹College of Life Sciences, Zaozhuang University, Zaozhuang, China.

Frontiers in plant science

|February 11, 2026

Resumen

La reproducción por mutación utilizando radiación gamma de Cobalt-60 creó una gran población de mutantes del trigo. Este recurso produjo numerosos mutantes tolerantes a la congelación y a las condiciones salino-alcalinas, junto con variaciones de rendimiento y rasgos de calidad.

Área de la Ciencia:

Ciencias Agrícolas Ciencias Agrícolas
Mejoramiento de plantas Mejoramiento de plantas Mejoramiento de plantas
Genética La genética.

Sus antecedentes:

El trigo (Triticum aestivum L.) es un cultivo básico global vital.
La reproducción por mutación utilizando radiación de cobalto-60 (60Co-γ) es un método clave para la mejora genética del trigo.

Objetivo del estudio:

Desarrollar una gran población mutante de trigo utilizando la irradiación 60Co-γ.
Para detectar mutantes beneficiosos, incluidos aquellos con mayor tolerancia al estrés y mejores rasgos agronómicos.

Principales métodos:

Diez cultivos de trigo fueron tratados con radiación 60Co-γ.
Se generó una gran población mutante de M2 (10.350.000 líneas) y se examinó en condiciones naturales.

Principales resultados:

Se identificaron 158 mutantes tolerantes a la congelación.
Se han descubierto 441 mutantes tolerantes a las soluciones salinas y alcalinas.
Se encontraron más de 5.000 mutantes con rendimiento alterado o rasgos de calidad.

Conclusiones:

La población mutante M2 generada es un recurso genético significativo para la mejora del trigo.
Este recurso facilita los estudios de genómica funcional y las aplicaciones de cría.
Proporciona una plataforma para el desarrollo de variedades de trigo resistentes al clima y de alto rendimiento.

Palabras clave:

60Co-γ es el 60Co-γ.Se trata de la cría de cría de cría.La genómica es la genómica.El germoplasma es el germoplasma.trigo de trigo el trigo de trigo.

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