摘要
神舟七号载人飞船搭载的贡氏圆尾鳉(Nothobranchius guentheri)受精卵经空间诱变后返回地面,与地面组进行孵化率、仔鱼畸形率、生长速度、个体大小、存活率的比较观察试验。结果表明:搭载组与地面组受精卵的孵化率分别为99.3%和97.2%,差异不显著;仔鱼畸形率分别为10.4%、16.8%,差异不显著;但搭载组雄性鱼的生长速度为0.094g/d,大于地面组的0.059g/d,差异显著;搭载组雄性鱼个体大于地面组雄性鱼,差异显著;搭载组鱼苗培育存活率为66.7%,高于地面组的47.9%,差异显著。试验初步观察结果标明:空间诱变的鳉鱼卵,孵化后鱼苗生长速度较快,抗逆性强,存活率较高。
Hatching,abnormal,growth and survival rate of the fertilized eggs of Nothobranchius guentheri whitc were carried by Shenzhou 7 spacecraft were studied.The results indicated that the hatching and abnormal rate were no significant difference between the spaceflight group（99.3% and 16.8%） and ground group（97.2% and 10.4%）;but the growth rate of male fish from spaceflight group was significant higher（0.094g/d） than that of ground group（0.059g/d）,leading to the significant bigger of the male fish from spaceflight group.The survival rate of spaceflight group（66.7%） was higher than the ground group（47.9%）.It was concluded that there was a higher growth and survival rate of Nothobranchius guentheri fertilized eggs after space flight.
出处
《核农学报》
CAS
CSCD
北大核心
2012年第8期1132-1136,共5页
Journal of Nuclear Agricultural Sciences
基金
厦门科技局创新研究项目(项目编号3502Z20062010)
中国空间技术研究院神舟七号太空育种研究项目
关键词
空间搭载
贡氏圆尾鳉
受精卵
孵化率
生长速率
space flight
Nothobranchius guentheri
fertilized egg
hatching rate
growth rate
