杂交稻米必需氨基酸含量与亲本的关系  

Relationship Between Essential Amino Acid Contents of Hybrid Rice Combinations and Their Parents

作　　者：张小明[1] 石春海[1] 吴建国[1] 富田桂 鲍根良[3] 叶胜海[3] 

机构地区：[1]浙江大学农业与生物技术学院,浙江杭州310029 [2]日本福井县农业试验场 [3]浙江省农业科学院作物研究所,浙江杭州310021

出　　处：《中国水稻科学》2003年第1期91-94,共4页Chinese Journal of Rice Science

基　　金：浙江省优质专用水稻新品种选育与产业化项目(0 1 1 1 0 2 4 71 );浙江省自然科学基金重大项目

摘　　要：根据 9个不育系、5个恢复系以及由此配制的 45个不完全双列杂交组合氨基酸含量的测定结果 ,分析了不同组合氨基酸含量的差异及其与亲本的关系。结果表明不育系和恢复系的必需氨基酸平均含量为 3.2 0 2 %～ 4.889% ,占氨基酸总量的 31 .796%～ 33.394% ;而杂交组合的必需氨基酸平均含量为 3.61 6%～ 4.858% ,占氨基酸总量的 32 .1 76%～33.0 1 6% ;必需氨基酸含量依次是亮氨酸 >缬氨酸 >异亮氨酸 >苏氨酸、赖氨酸、苯丙氨酸 >蛋氨酸。平均氨基酸总量和必需氨基酸含量都有一定的杂种优势 。Some differences among essential amino acids contents of nine sterile lines, five restorer lines and their hybridized combinations in indica rice were analyzed. Essential amino acids contents of sterile lines and restorer lines were 3 202%-4 889%, those were about 31 796%-33 394% of total amino acids, and essential amino acids contents of their hybrid were 3 616%-4 858%, those were about 32 176%-33 016% of total amino acids. The amount of essential amino acids were: leucine>valine>isoleucine>threonine, lysine and pheny lalanine>methionine. Total amount of amino acids and essential amino acids in hybrids were higher than those in their parents, but the differences were existed among hybrid combinations.

关 键 词：必需氨基酸含量 亲本 杂交水稻 稻米品质 杂种优势 

分 类 号：S511[农业科学—作物学]