Please wait, while we are loading the content...
Please wait, while we are loading the content...
| Content Provider | Springer Nature Link |
|---|---|
| Author | Schmidt, M. A. LaFayette, P. R. Artelt, B. A. Parrott, W. A. |
| Copyright Year | 2007 |
| Abstract | The stable insertion and expression of multiple transgenes in crops is highly desirable, as the manipulation of complex agronomic traits and the introduction of novel biosynthetic pathways are dependent upon it. This study was performed to explore the frequency and efficiency of introducing multiple genes in soybean by using somatic embryogenesis and microprojectile bombardment transformation. The co-transformation frequency of six selectable marker or reporter genes (GusA, bleomycin resistance, glufosinate resistance, hygromycin resistance, green fluorescent protein, and kanamycin resistance) were followed throughout the T0, T1, and T2 generations. Three bombardment strategies were compared to determine the best method to generate transgenic plants that express the introduced transgenes and have a simple insertion pattern that would facilitate any downstream breeding. The plasmid bombardment treatments were (1) a six-gene-containing plasmid, (2) an equimolar treatment of five individual plasmids that collectively contained the six transgenes of interest (genes of glufosinate and hygromycin resistance were on the same plasmid), and (3) a 1:9 ratio mixture of the five plasmids, in which the plasmid containing the selectable marker used in the regeneration process, hygromycin resistance, was used in ninefold excess to all the other plasmids. Of the six bombardments performed per plasmid treatment, the results of seven independent events for the six-gene plasmid, four events for the 1:9 treatment, and a single regenerated event for the equimolar treatment indicate that containing all the transgenes on one plasmid just had an advantage in terms of frequency of a successful transformation events. Based on Southern analysis, the only events that contained all six transgenes was the one obtained by the equimolar treatment. No event was obtained that expressed all six transgenes, and certain transgenes seem to be non-randomly lost, namely gusA, bleomycin resistance, and glufosinate resistance, regardless of treatment. The addition of elements to optimize the expression of each gene cassette when multiple genes are in close proximity needs to be further investigated. |
| Starting Page | 162 |
| Ending Page | 168 |
| Page Count | 7 |
| File Format | |
| ISSN | 10545476 |
| Journal | In Vitro Cellular & Developmental Biology - Plant |
| Volume Number | 44 |
| Issue Number | 3 |
| e-ISSN | 14752689 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2008-02-05 |
| Publisher Place | New York |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Co-bombardment Gene stacking Meganucleases Multiple-gene transformation Soybean Plant Genetics & Genomics Plant Breeding/Biotechnology Developmental Biology Cell Biology Plant Sciences |
| Content Type | Text |
| Resource Type | Article |
| Subject | Cell Biology Developmental Biology Plant Science Biotechnology |
National Digital Library of India (NDLI) is a virtual repository of learning resources which is not just a repository with search/browse facilities but provides a host of services for the learner community. It is sponsored and mentored by Ministry of Education, Government of India, through its National Mission on Education through Information and Communication Technology (NMEICT). Filtered and federated searching is employed to facilitate focused searching so that learners can find the right resource with least effort and in minimum time. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Services for Researchers and general learners are also provided. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is built to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is designed to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is developed, operated and maintained from Indian Institute of Technology Kharagpur.
Learn more about this project from here.
NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.
Ministry of Education, through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.
| Sl. | Authority | Responsibilities | Communication Details |
|---|---|---|---|
| 1 | Ministry of Education (GoI), Department of Higher Education |
Sanctioning Authority | https://www.education.gov.in/ict-initiatives |
| 2 | Indian Institute of Technology Kharagpur | Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project | https://www.iitkgp.ac.in |
| 3 | National Digital Library of India Office, Indian Institute of Technology Kharagpur | The administrative and infrastructural headquarters of the project | Dr. B. Sutradhar bsutra@ndl.gov.in |
| 4 | Project PI / Joint PI | Principal Investigator and Joint Principal Investigators of the project |
Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon |
| 5 | Website/Portal (Helpdesk) | Queries regarding NDLI and its services | support@ndl.gov.in |
| 6 | Contents and Copyright Issues | Queries related to content curation and copyright issues | content@ndl.gov.in |
| 7 | National Digital Library of India Club (NDLI Club) | Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach | clubsupport@ndl.gov.in |
| 8 | Digital Preservation Centre (DPC) | Assistance with digitizing and archiving copyright-free printed books | dpc@ndl.gov.in |
| 9 | IDR Setup or Support | Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops | idr@ndl.gov.in |
|
Loading...
|