|
|||||
|
|
| 玉米4个穗部性状的遗传及相关分析 | |
| 引用本文： | 高祥扩,杨克昌,黄清梅,鲁用强,冯素芬,赵自仙.玉米4个穗部性状的遗传及相关分析[J].玉米科学,2012,20(4):9-14. |
| 作者姓名： | 高祥扩 杨克昌 黄清梅 鲁用强 冯素芬 赵自仙 |
| 作者单位： | 1. 云南省农业科学院粮食作物研究所,昆明,650205 2. 云南省农业科学院粮食作物研究所,昆明650205;云南农业大学农学与生物技术学院,昆明650201 3. 通海县土壤肥料工作站,云南通海,652700 |
| 基金项目： | 昆明市科技合作重点项目(08H130104) |
| 摘 要： | 选用10个优良玉米自交系配成不完全双列杂交组合,研究玉米穗长、穗粗、穗行数、百粒重4个穗部性状的遗传效应及其相关性。结果表明,穗长、穗粗、百粒重主要受遗传主效应控制,穗行数受基因型×环境互作效应的影响。穗长和穗粗主要受胚加性效应的影响,其胚加性方差(VAo)分别占遗传主效应方差(VG)的92.56%、95.80%;穗行数的遗传受母体加性互作、胚加性互作的共同影响,两种效应依次占环境互作效应的50.31%、49.60%;百粒重受胚乳加性和母体加性效应的共同控制,两种效应分别占遗传主效应的50.73%、47.12%。穗长和穗粗以胚普通遗传率为主,穗行数以胚乳和母体互作遗传率为主,百粒重以胚乳普通遗传率和母体普通遗传率为主。穗长与穗粗、穗行数,穗粗与穗行数的胚加性(rAo)、细胞质(rC)均呈极显著高度正相关,穗长与百粒重的细胞质(rC)呈极显著正相关,穗粗与百粒重的细胞质(rC)、母体显性(rDm)、胚加性互作(rAoE)、细胞质互作(rCE)均呈极显著正相关,穗长与穗粗、穗长与穗行数、穗长与百粒重、穗粗与穗行数、穗粗与百粒重5对性状可以同步改良。 |
| 关 键 词： | 玉米 穗部性状 遗传效应 相关分析 |
| 收稿时间： | 2011/11/1 0:00:00 |
Genetic and Correlation Analysis for Four Ear Traits in Maize |
|
| GAO Xiang-kuo,ZHAO Zi-xian and ZHAO Cui-ying.Genetic and Correlation Analysis for Four Ear Traits in Maize[J].Journal of Maize Sciences,2012,20(4):9-14. | |
| Authors: | GAO Xiang-kuo ZHAO Zi-xian and ZHAO Cui-ying |
| Institution: | Food Crops Research Institute, Yunnan Academy of Agricultural Sciences, Kunming 650205;Food Crops Research Institute, Yunnan Academy of Agricultural Sciences, Kunming 650205; College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming 650201;Tonghai Soil and Fertilizer Station, Tonghai 652700, China |
| Abstract: | Ten elite maize inbred lines were used in incomplete diallel cross (5×5) to analyze genetic main effects and environment interaction effects for four maize ear traits, ear length, ear diameter, rows per ear and 100-kernel weight. The results indicated that ear length, ear diameter and 100-kermel weight were mainly controlled by genetic main effects, while G×E interaction effects did for rows per ear. Ear length and ear diameter which their variance percentage to genetic main effect were 92.56% and 95.80%, respectively, and were mainly controlled by embryo additive effect. While rows per ear were affected by maternal and embryo additive interaction effects, which the variance percentage to total interaction was 50.31% and 49.60%, respectively. The 100-kernel weight was controlled by endosperm and maternal additive effects which their variance percentage to genetic main effect was 50.73% and 47.12%, respectively. The embryo common heritability was more important for ear length and ear diameter, endosperm and maternal interaction heritability were important for rows per ear, while endosperm and maternal common heritability were important for 100-kernel weight. There were highly significantly embryo additive and cytoplasm positive correlations exist between ear length and ear diameter, rows per ear, ear diameter and rows per ear, significantly cytoplasm positive correlations showed between ear length and 100-kernel weight. Significantly cytoplasm, maternal dominance, embryo additive interaction and cytoplasm interaction positive correlations existed between ear diameter and 100-kernel weight. The following five pair traits could be improved together; they were ear length and ear diameter, rows per ear, 100-kernel weight; ear diameter and rows per ear, 100-kernel weight. |
| Keywords: | Maize Ear traits Genetic effects Correlation analysis |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
| 点击此处可从《玉米科学》浏览原始摘要信息 | |
| 点击此处可从《玉米科学》下载免费的PDF全文 | |