The Status and Prospect of the Research on the Mutant Strain of Impatiens balsamina Induced by Spaceflight
Researches and exploration on space seed breeding of flowers started in our country since 1980s and a number of valuable mutant materials and new flower varieties were obtained.Impatiens balsamina,a traditional ornamental flower in courtyards,was carried into space by Shenzhou 4 spaceship,a mutant strain was obtained after returning to the earth from the special environment.Researchers studied the morphology,cytology,photosynthetic physiology and medicinal components of the mutant strain and found that compared with the regular strain,the space environment induced some physiological damages and autogenous variation of the SP1 generation,and abnormal division of microsporocytes resulted in the sterility of the progenies.Two mutated strains with higher ornamental value were bred through multi-generation cultivation and observation.The researches on the mutant strain of Impatiens balsamina induced by spaceflight were reviewed in this paper to provide references for further researches.
Space mutationImpatiens balsaminaGenetic materialMutant
NETL
NSTL
万方数据
维普
