Plastome engineering in vegetable crops: current status and future prospects

Area of Science:

• Plant Biotechnology
• Molecular Biology
• Genomics

Background:

• Plastid genome engineering offers advantages over nuclear transformation, including higher transgene expression and better containment.
• Significant progress has been made in engineering vegetable crop plastomes using advanced regeneration and vector systems.

Purpose of the Study:

• To review the technology, progress, and advancements in plastid transformation of various vegetable crops.
• To discuss the potential of plastid transformation for genetic improvement and production of industrial proteins and edible vaccines.

Main Methods:

• Review of existing literature on plastid transformation in vegetable crops.
• Analysis of improved regeneration/selection procedures and vector designs for plastid transformation.
• Examination of successful transgene integration and expression in vegetable plastomes.

Main Results:

• Plastid transformation has been successfully applied to several vegetable species like lettuce, tomato, and potato.
• The technology facilitates stable integration and expression of agronomic genes and industrial proteins.
• Limitations exist due to the lack of whole plastome sequencing for some species.

Conclusions:

• Plastid transformation is a powerful tool for vegetable crop improvement and bioproduction.
• Expansion to more vegetable species is needed, requiring whole plastome sequencing data.
• Future prospects include the development of edible vaccines and enhanced crop traits.