Roses usually have red or reddish flowers, and there are few blue and purple flowers. If a unique blue rose is cultivated, it will become a rare flower. Horticulturists use conventional cross breeding methods. After decades of efforts, they have not succeeded. The emergence of genetic engineering has really made the dream of this "blue rose" field come true.

Scientists from an American company transferred the blue gene isolated from Petunia into rose cells, and actually got a rose with blue flowers. The unique "blue rose" treasure in the world was born with the help of biotechnology.

With people's understanding of anthocyanins and other synthase genes, 1987, a French company also transferred a reductase gene from corn anthocyanins to Petunia, which made Petunia blossom brick red.

In the study of luminescent genes, genetic engineers have successfully transferred the genes of luminescent substances such as fluorescein and luciferase in fireflies into plant cells, so that transgenic plants can emit light at night. If these luminescent genes are transferred into flowers, the flowers will be more colorful. Japanese scientists have successfully cultivated luminous tobacco and plan to cultivate luminous chrysanthemums and luminous carnations. The transgenic flowers of Bandaran cultivated by Singapore scientists can glow at night, which adds charm to this beautiful tropical orchid.

The application of genetic engineering in flowers can create a wonderful flower world.