摘要
本文对２５个常用玉米自交系的酯酶同工酶酶谱性状进行了聚类分析，可将其分为５大类。对４１个组合间酶谱距离与其籽粒产量杂种优势的相关关系研究表明：酶谱距离与其籽粒产量杂种优势呈显著正相关，ｒ值为０．４５８３。
Zymogram cluster analysis of isoenzymes of esterase was carried out in 25 conventional corn inbred lines which was classified into 5 groups.The zymogram distance between groups and within any group could truely reflect the genetic difference between inbred lines.The zymogram distance and geographical distribution of the lines have no direct relationship to each other.The correlativity between the zymogram distance among the parents of 41 cross combinations and their yield heterosis was also studied.indicating that there is a positive correlation significantly between the two(r=0.4583).
出处
《玉米科学》
CAS
CSCD
1994年第4期12-14,17,共4页
Journal of Maize Sciences
关键词
玉米
自交系
酯酶
酶谱
同功酶
杂交育种
Corn inbred lines
Esterase Isoezymes
Zymogram
Cluster Analysis
Heterosis
