从多基因型树的叶子中建立和应用高效的原生质分离和转化系统
Fang Tang1, Shanchen Zhong2, Huishan Qu3
1State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China; Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China.
概括
这项研究优化了原生质的分离和转化,发现特定的酶溶液和净化方法显著影响了成功率. 来自Sect. 的树品种. 树表现出优越的生存能力和转化效率,用于基因改进.
科学领域:
- 植物生物技术 植物生物技术
- 分子生物学分子生物学
- 森林遗传学 森林遗传学
背景情况:
- 有效地再生转基因对于林业和生物质生产至关重要.
- 现有的原生质隔离和转化协议显示显著的基因型依赖的变异性,阻碍了广泛应用.
研究的目的:
- 建立和系统地评估一个多基因型原生菌的隔离和转化系统.
- 为了比较不同酶溶液和净化方法的有效性,以优化不同树品种的原生质产量,生存能力和转化效率.
主要方法:
- 使用了来自四个分类学部分的七种代表性树基因型.
- 两种酶溶液 (细胞酶/麦克罗酶与细胞酶/核酸酶) 和两种净化方法 (W5溶液与糖密度梯度离心) 进行了比较.
- 评估了绿色光蛋白 (GFP) 的转化效率.
主要成果:
- 酶溶液I (细胞酶/麦克罗酶) 产生了比酶溶液II更高的原生质活力.
- 用W5溶液直接洗保护了原生质的活力,比糖密度梯度离心更好.
- 来自Leuce区的树品种与其他区相比,表现出明显更高的原始细胞活力和GFP转化效率.
- 尽管可行性较低,Populus ×'Senhai 4'的转换效率相对较高,这表明了复杂的影响因素.
结论:
- 使用酶溶液I和W5净化的优化协议为多基因型原体转化提供了坚实的基础.
- 观察到原生质活力和转化效率的显著基因型变异,与Sect. 的品种表现最好.
- 这项研究促进了树的基因编辑和分子育种,并有可能用于提高其他木质物种的转基因效率.
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