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Anther culture in connection with induced mutations for rice improvement

机译：花药培养与诱导突变相关的水稻改良

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摘要

Doubled haploids have long been recognized as a valuable tool in plant breeding since it not only offers the quickest method of advancing heterozygous breeding lines to homozygosity, but also increases the selection efficiency over conventional procedures due to better discrimination between genotypes within any one generation. Ten cultivars of japonica rice and nine cultivars of indica rice were evaluated for androgenic response. Various doses (10–50 Gy) of gamma rays were applied to investigate the effect of radiation on callus formation, green plant regeneration and the frequency of selected doubled haploid mutants. Similarly, the effects of colchicine concentration (10–200 mg/l) on callus induction, regeneration and fertility of green plants were observed. It was demonstrated that the dose of 20 Gy gamma rays and 30 mg/l concentration of colchicine have significant stimulation effect on regeneration of green plants from rice anther culture. The high frequency of observed doubled haploid mutants indicates that anther culture applied in connection with gamma rays is an effective way to improve rice cultivars.
机译：双倍单倍体长期以来一直被认为是植物育种中的重要工具，因为它不仅提供了将杂合育种系推进纯合性的最快方法，而且由于可以更好地区分任何一代中的基因型，因此比常规方法提高了选择效率。评价了十个粳稻品种和九个of稻品种的雄激素响应。应用各种剂量（10–50 Gy）的伽马射线来研究辐射对愈伤组织形成，绿色植物再生和所选双倍单倍体突变体频率的影响。同样，观察到秋水仙碱浓度（10–200 mg / l）对绿色植物愈伤组织的诱导，再生和育性的影响。结果表明，剂量为20 Gy的伽马射线和浓度为30 mg / l的秋水仙碱对水稻花药培养中的绿色植物的再生具有明显的刺激作用。观察到的双倍单倍体突变体的高频率表明，与伽马射线结合应用的花药培养是改善水稻品种的有效途径。

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  • 来源
    《Euphytica》 |2001年第3期|401-408|共8页
  • 作者

    Q.F. Chen; C.L. Wang; Y.M. Lu; M. Shen; R. Afza; M.V. Duren; H. Brunner;

  • 作者单位

    Zhejiang Academy of Agricultural Sciences;

    Zhejiang Academy of Agricultural Sciences;

    Zhejiang Academy of Agricultural Sciences;

    Zhejiang Academy of Agricultural Sciences;

    Plant Breeding Unit FAO/IAEA Agriculture and Biotechnology Laboratory;

    Plant Breeding Unit FAO/IAEA Agriculture and Biotechnology Laboratory;

    Plant Breeding Unit FAO/IAEA Agriculture and Biotechnology Laboratory;

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  • 正文语种 eng
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  • 关键词

    colchicine; doubled haploids; gamma rays; mutagenesis; mutants; Oryza sativa;

    机译：秋水仙碱;双倍单倍体;γ射线;诱变;突变体;稻;

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