摘要
选用微胚乳等各类隐性纯合体玉米(微胚乳玉米、sh2sh2wxwx、bt1bt1wxwx、wxwx、su1su1wxwx)为试验材料,研究各类玉米杂交导入Opaque-2后的早代玉米子粒赖氨酸含量的变异。结果表明,导入Opaque-2的微胚乳等各类玉米的早代赖氨酸含量都会受到影响,均有提高的趋势,其胚与非胚部分赖氨酸含量都有所提高。但Opaque-2对微胚乳玉米和bt1bt1wxwx双隐纯合体两类玉米赖氨酸含量影响无规律性变化,在同一遗传背景下都出现子粒赖氨酸含量正负两个方向的增减差异。Opaque-2导入wxwx玉米后,其玉米整粒、胚与非胚部赖氨酸含量都有增加的趋势,其他类玉米导入Opaque-2后也有希望选育出高赖氨酸含量的品系。
The process to introducing opaque-2 gene into homozygotes recessives maize and analyzing o2 gene effect on kernels lysine content during early generations were studied, required the usage of micro-endosperm maize, sh2sh2wxwx, bt1bt1wxwx, wxwx and su1su1wxwx maize materials. The results showed that a real effect of opaque-2 gene on kernels lysine content during early generations. These homozygotes recessives maize presented an increasing tendency of kernels lysine content, embryo and non-embryo part lysine content. However, into the same genetic back- ground, micro-endosperm maize and bt^btlwxwx, the opaque-2 gene involved two kinds of lysine content variations, positive and negative and this situation needs more analysis. Furthermore, into wxwx genetic background, opaque-2 gene increased kernels lysine content, kernels embryo lysine content and kernels non-embryo part lysine content for the whole of o2o2wxwx maize. Moreover the others maize materials also should be in used to select high lysine content maize.
出处
《玉米科学》
CAS
CSCD
北大核心
2012年第2期56-58,63,共4页
Journal of Maize Sciences
基金
国家自然科学基金(30671307)
广西科学研究与技术开发计划项目(桂科攻0992016-4)
