Expression and inheritance of foreign genes in transgenic peanut plants generated byAgrobacterium-mediated transformation

1997 ◽  
Vol 16 (8) ◽  
pp. 541-544 ◽  
Author(s):  
M. Cheng ◽  
Z. Li ◽  
J. W. Demski ◽  
R. L. Jarret
Keyword(s):  
Foreign Genes ◽  
Transgenic Peanut

scholarly journals Engineering of Recombinant Sheep Pox Viruses Expressing Foreign Antigens

2021 ◽  
Vol 9 (5) ◽  
pp. 1005
Author(s):  
Olga Chervyakova ◽  
Elmira Tailakova ◽  
Nurlan Kozhabergenov ◽  
Sandugash Sadikaliyeva ◽  
Kulyaisan Sultankulova ◽  
...  
Keyword(s):  
Fluorescent Protein ◽  
Viral Vector ◽  
Foot And Mouth Disease ◽  
Open Reading Frames ◽  
Foreign Gene ◽  
Mouth Disease Virus ◽  
Foreign Genes ◽  
Green Fluorescent ◽  
Reading Frames

Capripoxviruses with a host range limited to ruminants have the great potential to be used as vaccine vectors. The aim of this work was to evaluate attenuated sheep pox virus (SPPV) vaccine strain NISKHI as a vector expressing several genes. Open reading frames SPPV020 (ribonucleotide kinase) and SPPV066 (thymidine kinase) were selected as sites for the insertion of foreign genes. Two integration plasmids with expression cassette were designed and constructed. Recombinant SPPVs expressing an enhanced green fluorescent protein (EGFP) (rSPPV(RRΔ)EGFP and rSPPV(TKΔ)EGFP), Foot-and-mouth disease virus capsid protein (VP1), and Brucella spp. outer membrane protein 25 (OMP25) (rSPPV(RRΔ)VP1A-(TKΔ)OMP25) were generated under the transient dominant selection method. The insertion of foreign genes into the SPPV020 and SPPV066 open reading frames did not influence the replication of the recombinant viruses in the cells. Successful foreign gene expression in vitro was assessed by luminescent microscopy (EGFP) and Western blot (VP1 and OMP25). Our results have shown that foreign genes were expressed by rSPPV both in permissive (lamb testicles) and non-permissive (bovine kidney, saiga kidney, porcine kidney) cells. Mice immunized with rSPPV(RRΔ)VP1A-(TKΔ)OMP25 elicited specific antibodies to both SPPV and foreign genes VP1 and OMP25. Thus, SPPV NISKHI may be used as a potential safe immunogenic viral vector for the development of polyvalent vaccines.

Host-vector systems

1989 ◽  
Vol 324 (1224) ◽  
pp. 477-485 ◽  
Keyword(s):  
Genetic Manipulation ◽  
Pharmaceutical Products ◽  
Host Cells ◽  
Animal Cells ◽  
Vector Systems ◽  
Wide Range ◽  
Novel Host ◽  
Basic Concepts ◽  
Foreign Genes ◽  
New Generation

In 1980 it was only possible to express foreign genes in bacteria and a few easily cultured animal cells. During the subsequent eight years specialized vectors have been developed to allow the genetic manipulation of a wide range of both prokaryotes and eukaryotes. One of the major goals of biotechnology in 1980 was to use host cells as ‘factories’ for the production of proteins that were only available in minute quantities from natural sources. This has already lead to a new generation of pharmaceutical products. Advances in our understanding of host-vector systems have defined new goals. The basic concepts of expression vector design will be illustrated. Some of the new goals are discussed with particular reference to the exploitation of novel host-vector systems to develop vaccines and anti-viral agents against AIDS.

scholarly journals Induction of the Maize GapC4 Promoter in Transgenic Potato under Anaerobiosis and in Erwinia carotovora-Inoculated Tuber Tissue

1999 ◽  
Vol 12 (3) ◽  
pp. 182-188 ◽  
Author(s):  
Lorenz Bülow ◽  
Uwe Köhler ◽  
Rüdiger Cerff ◽  
Reinhard Hehl ◽  
Klaus Düring
Keyword(s):  
Experimental System ◽  
Erwinia Carotovora ◽  
Transgenic Potato ◽  
Intact Tissue ◽  
Induction Pattern ◽  
Pectolytic Enzymes ◽  
Genes Encoding ◽  
Live Bacteria ◽  
Foreign Genes ◽  
High Level

The induction pattern of the GapC4 promoter from maize in transgenic potato has been analyzed by fusion to the β-glucuronidase (gus) gene. Under anaerobic conditions this promoter confers high level expression not only in leaves, stems, and roots but also in tubers. After inoculation of potato tuber disks with Erwinia carotovora subsp. atroseptica, β-glucuronidase (GUS) activity could be detected in macerated tissue as well as in surrounding intact tissue. In mock controls no induction was detected, ruling out any induction due to an overall limitation in oxygen in the experimental system. In addition, it could be proven that no diffusion of GUS protein from macerated into intact tissue occurred. The promoter was shown to be aerobically induced even in the absence of live bacteria by incubation with purified Erwinia spp. pectolytic enzymes alone. Therefore, promoter induction seems to be mediated by a mobile factor instead of by limitation in oxygen. These results demonstrate that the maize GapC4 promoter is suitable for directing foreign genes encoding antibacterial proteins in transgenic potato.

scholarly journals Strategies for expression of foreign genes in plants Potential use of engineered viruses

FEBS Letters ◽  
1991 ◽  
Vol 281 (1-2) ◽  
pp. 1-8 ◽  
Author(s):  
Rajiv L. Joshi ◽  
Vandana Joshi
Keyword(s):  
Foreign Genes ◽  
Potential Use

Recent advances in transgenic arthropod technology

2004 ◽  
Vol 94 (2) ◽  
pp. 95-110 ◽  
Author(s):  
M.G. Kramer
Keyword(s):  
Public Health ◽  
Natural Population ◽  
Agricultural Production ◽  
New Techniques ◽  
Field Biology ◽  
Field Release ◽  
Potential Applications ◽  
Potential Risks ◽  
Foreign Genes ◽  
Considerable Work

AbstractThe ability to insert foreign genes into arthropod genomes has led to a diverse set of potential applications for transgenic arthropods, many of which are designed to advance public health or improve agricultural production. New techniques for expressing foreign genes in arthropods have now been successfully used in at least 18 different genera. However, advances in field biology are lagging far behind those in the laboratory, and considerable work is needed before deployment in nature can be a reality. A mechanism to drive the gene of interest though a natural population must be developed and thoroughly evaluated before any field release, but progress in this area has been limited. Likewise, serious consideration of potential risks associated with deployment in nature has been lacking. This review gives an overview of the most promising techniques for expressing foreign genes in arthropods, considers the potential risks associated with their deployment, and highlights the areas of research that are most urgently needed for the field to advance out of the laboratory and into practice.

Sign in / Sign up

Export Citation Format

Share Document