A RUBY Reporter for Efficient Banana Transformation and Development of Betalain-Rich Musa Germplasm

文献类型: 外文期刊

第一作者: He, Weidi

作者: He, Weidi;Huang, Huoqing;Wang, Shuxian;Wang, Dalin;Xie, Yanling;Hu, Chunhua;Wang, Shuxian

作者机构:

关键词: banana; betalain; genetic transformation; RUBY

期刊名称:INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES ( 影响因子:4.9; 五年影响因子:5.7 )

ISSN: 1661-6596

年卷期: 2025 年 26 卷 16 期

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收录情况: SCI

摘要: Bananas are economically important crops valued for both their nutritional and dietary uses. However, the global banana industry suffers from a narrow base dominated by a single variety. Developing novel varieties enriched in health-promoting compounds such as betalains can help diversify banana germplasm and meet evolving consumer demands. In this study, the RUBY reporter system was employed to produce betalain-rich bananas via stable and transient genetic transformations. Transient transformation by injecting 3 mL of Agrobacterium suspension into immature fruits produced vivid red-purple pulp containing up to 1.78 mg/g of betalains. For stable transformation, embryonic cell suspensions expressing RUBY exhibited a red-purple coloration after the first screening, reducing the selection period from 45 to 15 days. These findings demonstrate that RUBY is a reliable visual reporter for efficient screening and can be used to develop nutritionally enhanced bananas.

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