Agrobacterium-Mediated Transformation of the Dwarf Soybean MiniMax

被引：1

作者：

Shao, Min ^{[1
]}

McCue, Kent F. ^{[1
]}

Thomson, James G. ^{[1
]}

机构：

[1] Western Reg Res Ctr, USDA ARS Crop Improvement & Genet, Albany, CA 94710 USA

来源：

PLANTS-BASEL | 2024年 / 13卷 / 07期

关键词：

soybean; MiniMax cultivar; transformation; regeneration; phloroglucinol; mycorrhiza fungi; PROPAGATION; GROWTH; ACID;

D O I：

10.3390/plants13071013

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

This study aims to establish an Agrobacterium-mediated transformation system for use with the 'MiniMax'soybean cultivar. MiniMax is a mutant soybean whose growth cycle is around 90 days, half that of most other soybean varieties, making it an optimal model cultivar to test genes of interest before investing in modification of elite lines. We describe an efficient protocol for Agrobacterium-mediated transformation using MiniMax seeds. It uses a modified 'half seed' regeneration protocol for transgenic soybean production, utilizing the rapid generation MiniMax variety to obtain T1 seeds in approximately 145 days. Addition of phloroglucinol (PG) to the regeneration protocol was key to obtaining high-efficiency rooting of the regenerated shoots. Transfer to soil was accomplished using an organic soil amendment containing nutrients and mycorrhiza for plants to thrive in the greenhouse. This combination of genotype and stimulants provides a transformation protocol to genetically engineer MiniMax seeds with a transgenic lab-to-greenhouse production efficiency of 4.0%. This is the first report of MiniMax soybean whole plant transformation and heritable T1 transmission. This protocol provides an ideal resource for enhancing the genetic transformation of any soybean cultivar.

引用

页数：13

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