摘要
以两份玉米子粒类型空间诱变系SP-M1、SP-M2以及野生型玉米自交系齐319为试验材料,对田间农艺性状、穗部性状、子粒的营养品质性状和胚乳内部显微结构进行分析。结果表明,与野生型相比,两个诱变系在株高、穗位高、粒长、百粒重等田间农艺性状和穗部性状上发生显著或极显著变异,且变异方向不同,SP-M1和SP-M2赖氨酸含量显著高于野生型,SP-M2淀粉含量显著高于野生型,蛋白质含量显著低于野生型。2个诱变系与齐319在胚乳边缘组织、胚乳内部组织、淀粉粒、基质蛋白等结构存在差异,淀粉粒的组成比例和排列顺序是影响胚乳超微结构差异的主要原因。
Two space mutation lines SP-M1 and SP-M2 from maize inbred Qi319 were used to analyze their nu-tritional quality traits and endosperm microstructure compared to the wild type. The results showed that the differ-ences between WT and mutants were significantly from different direction, such as plant height, ear height, grainlength, 100-grain weight, etc. Lysine content of mutant lines SP-M1 SP-M2 was significantly higher than wild typeQi319. Starch content in kernels of SP-M2 was significantly higher than that of Qi319, but the protein content exhib-ited the inverse change. Two mutants were quite different with the wild type in endosperm edge organization, endo-sperm internal organization, starch grains, matrix protein. Composition and arrangement of starch granules had animportant effect on the ultrastructure of endosperm.
出处
《玉米科学》
CAS
CSCD
北大核心
2016年第2期6-10,共5页
Journal of Maize Sciences
基金
哈尔滨市科技创新人才研究专项资金(2014RFQXJ009)
黑龙江省留学归国人员科学基金(LC201411)
