RuBisCo small subunit as strong green tissue specific promoter

Transcriptomics has the potential to rapidly increase our knowl-edge of spatial and temporal gene expression and lead to newpromoters for research and development. The availability of abroad-spectrum promoters having the ability to regulate the tem-poral and spatial expression patterns of the transgene can increasethe successful application of transgenic technology and to addresslegitimate concerns raised about the safety and containment oftransgenic plants. Compared with the temporal-specific or spatial-specific expression of the toxin, constitutive expression of foreignproteins in transgenic plants may cause adverse effects. Consti-tutive overexpression of transgenes that interfere with normalprocesses in a plant underscore the need for refinement of trans-gene expression. The development of tissue-specific promoters todrive transgene expression has helped to fulfill that need. There-fore, it is desirable to use expression-specific promoters which onlyexpress the foreign gene in specific plant tissues or organs. Thisstudy highlights the uses and benefits reaped by researchers byusing green tissue specific promoter (RuBisCo small subunit) in dif-ferent crops and systems and establishes a broad range of tissuespecific promoters. Such plant promoters that are activated pre-cisely when and where they are needed would be ideal for geneticengineering strategies.