| 小麦骨干亲本豫麦2号的育种价值分析 |
| |
| 作者姓名： | 朱有朋 郭春燕 孙文鑫 马彩艳 袁水泉 詹克慧 |
| |
| 作者单位： | 朱有朋,郭春燕,孙文鑫,马彩艳,詹克慧(河南农业大学农学院,河南郑州,450002);袁水泉(虞城县农科所,河南虞城,476300)? |
| |
| 基金项目： | 863项目"国家高技术研究与发展计划"? |
| |
| 摘 要： | 河南审定的183个小麦品种中有75个小麦品种含有豫麦2号的血缘,豫麦2号成为河南小麦育种利用率最高的骨干亲本.利用系谱资料对豫麦2号种质与其75个衍生品种的共祖先度进行了分析.结果表明:75个小麦品种与豫麦2号的共祖先度范围为0.0500～0.6250,累积的共祖先度为20.9041,占75个小麦品种的27.87%,占河南183个小麦品种的11.42%,豫麦2号具有极高的利用价值,豫麦2号及其衍生品种的利用还在继续.研究豫麦2号的育种价值,对于有效利用小麦种质资源,保持小麦品系的遗传多样性,恰当地选用杂交亲本,成功地创造出优良新基因型具有重要意义.
|
| 关 键 词： | 小麦 骨干亲本 豫麦2号 育种价值 共祖先度 |
Breeding Value of the Wheat Corner Stone Parent Yumai 2 |
| |
| Abstract: | In 183 registered wheat cultivars of Henan Province, 75 cultivars have consanquinity of Yumai 2. Yumai 2 is the most widely utilized corner stone parent in wheat breeding of Henan Province. The coancestry coefficient of Yumai 2 with its 75 derived cultivars were analyzed.The results showed that coancestry coefficient of the 75 wheat cultivars with Yumai 2 varied from 0.0500 to 0.6250.The total coancestry coefficient was 20.9401, which accounted for 27.87% in 75 wheat cultivars and 11.42% in 183 registered wheat cultivars of Henan province.Yumai 2 had very high value in use, and this would continue in coming years. The study of the breeding value of Yumai 2 was of great significance for utilizing wheat germplasm effectively, maintaining the genetic diversity of wheat lines, selecting the hybrid parents properly, and succeeding in breeding a good new genotype. |
| |
| Keywords: | Wheatzz Corner stone parentzz Yumai 2zz Breeding valuezz Coancestry coefficientzz |
|
| 点击此处可从《》浏览原始摘要信息 |
| 点击此处可从《》下载免费的PDF全文 |
|
