Studies on the Mutation Effects of Spaceflight Treatment on Tomato.
- VernacularTitle:飞船搭载对番茄诱变效果的研究
- Author:
Jirong ZHENG
;
Shiheng WANG
;
Bingliang WANG
;
Huili WANG
- Publication Type:Journal Article
- Keywords:
tomato;
space mutation;
botany character;
agricultural character;
mutant
- From:Space Medicine & Medical Engineering
2006;0(02):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To select excellent tomato mutants by space treatment and to cultivate directly new varieties for production application and good seed resource.Methods Seeds of tomato cultivar were carried into space by scientific experiment recoverable satellite.The main agricultural characters of tomato mutant were observed and analyzed.Results Seeds of determinate growth habit tomato cultivar T10-3-2 were carried into space in 2002 by a recoverable satellite(Shenzhou 4).After cultivation and selection,two tomato variants(H1 and H2) and their offspring populations were obtained in SP2.Variations included quantitative character variations such as maturity,fruit characters and fruit trait,as well as genetic character variations such as changes from determinate growth to indeterminate growth of plant growth habits,and from the no shoulders to the green shoulders of fruits.These two kinds of changes were dominant mutations,and could inherit stably.The research also indicated that variations(amplitude,standard deviation and coefficient of variation) of each generation of two mutants,reduced along with generation increasing.It was showed these characters to be easily stable.Conclusion Tomato seeds loaded on spacecraft can truly form the tomato character variation,and the variation character may be stably inherited.
