Creation of rice doubled haploids with low amylose content using in vitro anther culture
Criação de plantas duplo-haploides de arroz com baixo teor de amilose usando espécies de cultura de anteras in vitro
Usenbekov B. Amirova A. Zeinalov Z. Meldebekova A. Mynbayeva D. Berkimbay K. Kurbangaliyeva T.
2024Instituto Internacional de Ecologia
Brazilian Journal of Biology
2024#84
In vitro androgenesis is a unique model for producing homozygous doubled haploid plants. The use of haploid biotechnology accelerates to obtain of doubled haploid plants, which is very important in rice breeding. The purpose of this work is to improve the production of doubled haploids in rice anther culture in vitro and selection of doubled haploid plants with valuable traits. The study the influence of nutrient media on the production of calli and plant regeneration processes in anther culture of 35 rice genotypes was revealed a significant influence of nutrient media on callus production. It was shown that the addition to culture medium phytohormones ratio with high level of cytokinin (5.0 mg/L BAP) and a low level of auxin (0.5 mg/L NAA), supplemented with amino acid composition promotes high production of green regenerated plants (68.75%) compared to albino plants (31.25%). As a result, doubled haploid lines of the glutinous variety Violetta were selected, which characterized by a low amylose content variation (from 1.86 to 2.80%). These doubled haploids are superior to the original variety in some yield traits and represent valuable breeding material.
callus , doubled haploids , in vitro anther culture , plant regeneration , rice
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Institute of Plant Biology and Biotechnology – IPBB, Almaty, Kazakhstan
Al-Farabi Kazakh National University, Almaty, Kazakhstan
Almaty Technological University, Almaty, Kazakhstan
Institute of Plant Biology and Biotechnology – IPBB
Al-Farabi Kazakh National University
Almaty Technological University
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