Resistant inheritance of new resource N553, to wheat scab was investigated with six generations genetic design. Which include the genetic analysis of major gene plus polygenes. The results showed as follows: The scab resistance of N553 fits the genetic model of two major genes plus polygenes. The genetic model for N553 also fits model E-1-0 (two major genes plus polygenes with additive-dominance-epistatic effect), the additive effect of the first major gene are double of the second major gene and there are negative dominance effects and significant epistatic effects. The major gene explains 25.71%~91.61% of the phenotypic variation, whereas the heritability of polygenes is just from 3.15% to 64.00%.
Zhang Yong, Zhang Boqiao, Gao Derong, Cheng Shunhe
. Major Genes Plus Polygenes Inheritance of Wheat Scab in Resource N553[J]. Chinese Agricultural Science Bulletin, 2005
, 21(6)
: 305
-305
.
DOI: 10.11924/j.issn.1000-6850.0506305
1陆维忠,程顺和,王裕中.小麦赤霉病研究.北京:科学出版社,2001.181~188
2王美芳.美国小麦赤霉病研究现状.世界农业,2000,(6):32~33
3吴兆苏.小麦育种学.北京:农业出版社,1990.82~101
4程顺和,杨士敏,张伯桥,等.小麦对赤霉病的抗扩展性鉴定方法的研究.中国农业科学,1994,27(2):45~49
5Gai J Y, Wang J K. Identification and estimation of a QTL model and its effects. Theor Appl Genet ,1998,97:1162~1168
6盖钧镒,章元明,王建康.QTL混合遗传模型扩展至2对主基因+多基因时的多世代联合分析.作物学报,2000,26(4):385~391
7章元明,盖钧镒,王建康.利用回交B1和B2及F2群体鉴定数量性状两对主基因+多基因混合遗传模型.生物数学学报,2000,15(3):358~366
8章元明,盖钧镒.数量性状分离分析中分布参数估计的IECM算法.作物学报,2000,26(6):699~706
9程顺和,张勇,张伯桥,等.小麦抗赤霉病育种2条技术路线的探讨.扬州大学学报,2003,24(1):59~62
10 方毅敏,肖碧玉,黄继平,等.小麦抗赤霉病性田间自然鉴定与抗赤霉病育种中的问题.植物保护学报,1999,26(4):294~298
