日本作物技术研究所,通过将大米细胞和小米细胞的原生质体结合在一起的方法,培育出一种更高产和更耐病害的大米新品种。结合成的细胞群体生根发芽,生长成具有双亲特征的完整植物。试验证实,这种植物具有小米所特有的光合作用能力。小米组织内的染色体为36个,大米组织内的染色体为24个,而新一代再生组织内的染色体为100多个。这一进展表明,人们首 Japan Institute of Crop Science, by combining the protoplasts of rice cells and millet cells, a new rice variety with higher yield and disease resistance was bred. The combined cell population begins to germinate and grow into an intact plant with both parents. Experiments confirmed that this plant has millet-specific photosynthetic capacity. There are 36 chromosomes in the millet tissue, 24 chromosomes in the rice tissue, and more than 100 chromosomes in the new generation of regenerative tissues. This progress shows that people first