摘要
选用两套同核异质不育系Ｋ１４９Ａ，Ｖ１４９Ａ，Ｋ８３（２１）３５Ａ，Ｖ８３（２１）３５Ａ）与７个恢复系杂交，考察２８个杂种Ｆ１代单倍体出现的频率，结果表明，Ｋ，Ｖ型胞质均可产生单倍体，频率为０～２７．３４％，单倍体的产生与不育系的核基因型，恢复系，不育系细胞密切相关，其中以核基因型（保持系）的作用最大，恢复系的作用最小，Ｋ、Ｖ型不育系之间的诱导单倍体频率上有差异Ｖ型不育系杂种产生单倍体频率较高。
Two groups of isonuclear alloplasmic male sterile lines including K l49A, V 149A, K83 (2l) 35A, V83(21)35A were crossed with seven restoration lines to find out the frequency of haploid occurrence from all F1generations. The result:showed that both K -type and V -type male sterile cytoplasms could produce hap-loid, with frequency from zero to 27. 3%. The occurrence of haploid was closely related to maintaining line,restoration line and cytoplasm of female, among them maintaining line made greatest contribution andrestoration line played little role. The hybrid of V -type sterile line produced haploid with more frequency,and the main way to prevent haploid occurrence was to select the maintaining line.
出处
《山东农业科学》
1996年第5期12-15,共4页
Shandong Agricultural Sciences
关键词
小麦
细胞质
单倍体
三系配套
杂种一代
Wheat, K-type male sterile line, V -type male sterile line, cytoplasm, Fl generation,haploid
