NDLI: OBPC Symposium: Maize 2004 & beyond—Recent advances in chloroplast genetic engineering

Content Provider	Springer Nature Link
Author	Koya, Vijay Daniell, Henry
Copyright Year	2005
Abstract	The chloroplast genetic engineering approach offers a number of unique advantages, including high-level transgene expression, multi-gene engineering in a single transformation event, transgene containment via maternal inheritance, lack of gene silencing, position and pleiotropic effects and undesirable foreign DNA. Thus far, more than 40 transgenes have been stably integrated and expressed via the tobacco chloroplast genome to confer several agronomic traits and produce vaccine antigens, industrially valuable enzymes, biomaterials, and amino acids. Functionality of chloroplastderived of vaccine antigens has been facilitated by hyperexpression in transgenic chloroplasts (leaves) or non-green plastids (carrols) and the availability of antibiotic-free selectable markers or the ability to excise selectable marker genes. Additionally, the presence of chaperones and enzymes within the chloroplast help to assemble complex multi-subunit proteins and correctly fold proteins containing disulfide bonds, thereby drastically reducing the costs of in vitro processing. Despite such significant progress in chloroplast transformation, this technology has not been extended to major crops. This obstacle emphasizes the need for plastid genome sequencing to increase the efficiency of transformation and conduct basic research in plastid biogenesis and function. However, highly efficient soybean, carrot, and cotton plastid transformation has been recently accomplished via somatic embryogenesis using species-specific chloroplast vectors. Recent advancements facilitate our understanding of plastid biochemistry and molecular biology. This review focuses on exciting recent developments in this field and offers directions for further research and development.
Starting Page	388
Ending Page	404
Page Count	17
File Format	PDF
ISSN	10545476
Journal	In Vitro Cellular & Developmental Biology - Plant
Volume Number	41
Issue Number	4
e-ISSN	14752689
Language	English
Publisher	Springer-Verlag
Publisher Date	2005-01-01
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	chloroplast-derived agronomic traits chloroplast-derived therapeutic proteins maternal inheritance non-green plastids plastid transformation transgene containment Cell Biology Developmental Biology Plant Genetics & Genomics Plant Biochemistry Plant Physiology
Content Type	Text
Resource Type	Article
Subject	Cell Biology Developmental Biology Plant Science Biotechnology

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