Improved Agrobacterium-mediated transformation of three maize inbred lines using MS salts

被引：112

作者：

Frame, Bronwyn R. ^{[1
]}

McMurray, Jennifer M. ^{[1
]}

Fonger, Tina M. ^{[1
]}

Main, Marcy L. ^{[1
]}

Taylor, Kyle W. ^{[1
]}

Torney, Francois J. ^{[1
]}

Paz, Margie M. ^{[1
]}

Wang, Kan ^{[1
]}

机构：

[1] Iowa State Univ, Dept Agron, Ames, IA 50011 USA

来源：

PLANT CELL REPORTS | 2006年 / 25卷 / 10期

关键词：

Agrobacterium tumefaciens; Zea mays; inbred maize; MS salts; N6; salts; Type I callus;

D O I：

10.1007/s00299-006-0145-2

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Transformation technology as a research or breeding tool to improve maize is routinely used in most industrial and some specialized public laboratories. However, transformation of many inbred lines remains a challenging task, especially when using Agrobacterium tumefaciens as the delivery method. Here we report success in generating transgenic plants and progeny from three maize inbred lines using an Agrobacterium-mediated standard binary vector system to target maize immature embryos. Eleven maize inbred lines were pre-screened for transformation frequency using N6 salts. A subset of three maize inbred lines was then systematically evaluated for frequency of post-infection embryogenic callus induction and transformation on four media regimes: N6 or MS salts in each of two distinct media backgrounds. Transgenic plants recovered from inbred lines B104, B114, and Ky21 were analyzed for transgene integration, expression, and transmission. Average transformation frequencies of 6.4% (for B104), 2.8% (for B114), and 8% (for Ky21) were achieved using MS salts. Availability of Agrobacterium-mediated maize inbred line transformation will improve future opportunities for maize genetic and functional genomic studies.

引用

页码：1024 / 1034

页数：11

共 49 条

[21] THE HYPERVIRULENCE OF AGROBACTERIUM-TUMEFACIENS A281 IS ENCODED IN A REGION OF PTIBO542 OUTSIDE OF TRANSFER DNA [J].