Genetic Engineering Progress and Breeding Tactics on Blue Flowers

doi:10.13560/j.cnki.biotech.bull.1985.2019-0450

Abstract

Abstract: Blue flowers possess highly ornamental value,but its coloration mechanism is very complicated. A great number of progresses have been achieved in the study of the pigmentation mechanism and genetic engineering in blue flower. Here the chemical,physiological,and molecular mechanisms of blue flower color are summarized. Many breeding practice for blue flowers are reviewed,including overexpression of key enzyme genes on anthocyanin biosynthetic pathway,expressing inhibition of entogenous competitive enzyme genes,introduction of regulatory genes for vacuoles pH regulation,and overexpression of metal ions transporter genes. Several tactics of genetic engineering for blue flowers are summarized based on these breeding practices,aiming to provide the reference for the genetic engineering breeding of blue flowers.

Key words: anthocyanin, genetic transformation, molecular breeding

LI Chong-hui, YIN Jun-mei. Genetic Engineering Progress and Breeding Tactics on Blue Flowers[J]. Biotechnology Bulletin, 2019, 35(11): 160-168.

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