中国水稻科学

• 研究简报 • 上一篇    下一篇

突变体Fan5苗色低温敏感性状的遗传分析

董彦君; 董文其; 张小明; 石守鋆; 张宏德   

  1. 浙江省农业科学院作物研究所,杭州310021
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1995-10-10 发布日期:1995-10-10

Genetic Analysis of Low-temperature-sensitive Seedling-colour Character in the Mutant Fan 5

Dong Yanjun; Dong Wenqi; Zhang Xiaoming; Shi Shouyun; Zhang Hongde   

  • Received:1900-01-01 Revised:1900-01-01 Online:1995-10-10 Published:1995-10-10

关键词: 遗传分析, 低温敏感, 苗色

Abstract: A low-temperature-sensitive seedling-colour mutaut Fan 5 was discovered in the field from breeding family in 1990 in Hangzhou. The experiment carried out under condition of artificially controlled five kinds of temperature (20℃, 23.1℃, 26.1℃, 28℃, 30.1℃ ) showed that the seedling-colour of Fan 5 was white at lower temperature(<20℃ ), yellowish white at 23.1℃, yellowish green at 26.1℃, but was normal (green) at higher temperature (>28℃) and that its critical temperature was about 26.1 ℃ for seedling-colour alteration in ten days after sowing. The results of segregation ratios of green seedling to white seedling from F1, F2 and BC1 populations at 20℃ indicated that a recessive nuclear gene controlled low-temperature-sensitive seedling-colour character in the mutant, which would be used as reasonable morphological indicator character for purifing dual-purpose male-sterile line and its hybrids.

Key words: genetic analysis, low-temperature-sensitivity, seedling-colour