Kalbande BB, Patil AS. Plant tissue culture independent
Agrobacterium tumefaciens mediated
In-planta transformation strategy for upland cotton (
Gossypium hirsutum).
J Genet Eng Biotechnol 2016;
14:9-18. [PMID:
30647592 PMCID:
PMC6299899 DOI:
10.1016/j.jgeb.2016.05.003]
[Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Revised: 04/21/2016] [Accepted: 05/01/2016] [Indexed: 11/17/2022]
Abstract
A new method of transgenic development called "In-planta" transformation method, where Agrobacterium is used to infect the plantlets but the steps of in vitro regeneration of plants is totally avoided. In this study, we have reported a simple In-planta method for efficient transformation of diploid cotton Gossypium hirsutum cv LRK-516 Anjali using Agrobacterium tumefaciens EHA-105 harbouring recombinant binary vector plasmid pBinAR with Arabidopsis At-NPR1 gene. Four day old plantlets were used for transformation. A vertical cut was made at the junction of cotyledonary leaves, moderately bisecting the shoot tip and exposing meristem cells at apical meristem. This site was infected with Agrobacterium inoculum. The transgenic events obtained were tested positive for the presence of At-NPR1 gene with promoter nptII gene. They are also tested negative for vector backbone integration and Agrobacterium contamination in T0 events. With this method a transformation frequency of 6.89% was reported for the cv LRK-516.
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