摘要
以"实践八号"育种卫星搭载的3个茄子高代自交系为材料,分析茄子航天诱变后代的变异及其SSR多态性。结果表明:航天诱变处理能显著影响茄子当代(SP1)种子的萌发,诱使株高、株型、叶片、果形等植物学性状在二代(SP2)发生变异,多数变异性状可在三代(SP3)稳定遗传;不同基因型材料对航天诱变处理的敏感度不同,长茄05-18的敏感性最高,圆茄05-9较05-7敏感性高;SSR多态性检测结果显示,变异株系与其未经航天处理自交系间存在不同程度的多态性,说明航天诱变可以使茄子在分子水平上发生变异。
Seeds of three eggplant varieties （05 - 7,05 - 9 and 05 - 18） were carried by＂Shijian 8＂satellite for space flight treatment. The space flight mutation effects on eggplant were studied and the genetic diversity of mutant lines was analyzed using SSR markers. The results showed that space flight had obvious effects on the seed germination in eggplant SP1 generation and other characters such as plant height,plant type,leaf shape,fruit shape in the second generation. Most of the mutated characters could stably inherit in the third generation. The results also indicated that different eggplant genotypes resporded different to the space flight mutation; the long eggplant 05 - 18 was much more sensitive than other two varieties. Great variation between variant lines and their original varieties were detected by SSR markers, suggesting that space flight could induce molecular variation in eggplant.
出处
《核农学报》
CAS
CSCD
北大核心
2010年第3期460-465,489,共7页
Journal of Nuclear Agricultural Sciences
基金
国家863项目(2007AA100104)
国家支撑计划项目(2008BAD97B06)
关键词
茄子
航天诱变
SSR标记
eggplant
spaceflight mutation
SSR molecular maker
