Study on Heterotic Groups and Patterns of High Amylopectin Maize 高支链淀粉玉米的杂种优势群和杂种优势模式研究
Effects of Planting Density on Plant Characters of Two Maize Heterotic Populations at Different Developmental Stages 2个玉米优势群体不同发育时期植株性状的密度效应分析
Main Heterotic Groups and Mixed Superior Pattern in Mudanjiang Area of Heilongjiang Province 黑龙江省牡丹江地区主要玉米种质资源和杂优模式
The heterosis analysis showed that the inter-group heterosis was greater than the intra-group heterosis, which indicates the feasibility of dividing rice heterotic groups by using SSR markers. 杂种优势分析表明,群间优势大于群内优势,说明利用SSR标记划分籼型水稻杂种优势群是可行的。
According to the heterotic theory, the algorithm made multi-populations concurrently evolve. 根据杂种优势理论的原理,算法让多个种群同时进化。
Heterotic Grouping of 27 Maize Inbred Lines Divided by SSR Markers and Yields 利用SSR标记和产量对27份玉米自交系进行杂种优势群划分
Gene Expression Profile and Main Function Genes during Ear Development in a Highly Heterotic Hybrid of Maize 强优势玉米杂交种雌穗发育期间的基因表达谱动态及重要功能基因
Heterotic groups were classified by cluster analysis with RAPDs based on16 important maize inbreds. 利用RAPD分子标记技术,对16个玉米自交系进行亲缘关系的类群划分。
Analysis on Heterotic Groups and Heterotic Patterns of High Oil Corn Inbred Lines 高油玉米自交系的杂种优势群划分和优势模式分析
Furthermore, seven patterns of heterotic combinations were recommended according to the grouping and hybrid rice production. 并结合杂交水稻生产实践提出了7种杂种优势组合配组模式。
Heterotic grouping for tropical and temperate maize inbreds by analyzing combining ability and SSR markers 利用配合力和SSR标记对热带和温带玉米自交系进行杂种优势群划分
The selection of heterotic ecotype of rice and application of the 4 sterile lines and the 12 ecotypes in the breeding program of two line japonica hybrid rice in northern China were discussed. 探讨了水稻优势生态型的筛选问题和这4个不育系及这12个不同生态型材料在北方两系杂交粳稻中的应用。
Molecular marking technology has been opening a new field for the development of heterotic vigor prediction and theory. 分子标记为杂种优势的预测和理论发展开辟了新领域。
The GCA and SCA of 9 introduced Yugoslavia maize inbreds were tested through their 63 crosses with 7 Chinese lines from different heterotic groups. The germplasm characteristics, value in breeding, utilization methods and the commercial value of the testcrosses were analyzed. 用7个国内不同类群自交系测定了9个南斯拉夫玉米自交系的GCA和SCA,分析了被测系的种质特点、在育种上的利用价值和途径以及测验种在生产上的商用价值。
Heterotic groups seems better than genetic distance in predicting the heterosis of F1. 与遗传距离法相比,杂种优势群能更好地预测F1的优势表现。
The materials used in this study were 33 maize inbred lines utilized in Sichuan since the 1980's, of which the genetic diversities and heterotic groups were studied by SSR molecular markers. 本研究以四川省20世纪80年代中期以来常用的33个玉米自交系为材料,利用SSR分子标记技术,对四川玉米种质遗传多样性及杂种优势类群划分进行研究;
The complete approach to solve this problem is to enhance and improve the germplasm with concrete objectives based on heterotic group and pattern studies. 解决这个问题的根本途径是对种质资源进行分类研究和整理,在明确杂种优势群和杂种优势模式的基础上,有针对性地进行种质扩增和改良。
The recent development of the molecular biological technology not only offers the new method to classify the heterotic groups but also provides the new idea on prediction of maize heterosis with molecular markers. 近年来,分子生物技术的飞速发展,不仅仅为利用分子标记划分玉米杂种优势群提供了新的方法,而且为探讨利用分子标记预测玉米杂种优势提供了新的思路。
Interestingly, some of the heterotic loci and performance QTL overlapped. 16 loci were detected. 且部分杂种优势位点和株高表型值QTL位点在相同的区间检测到。共检测出16个基因座位。
Compared with then-pedigree, the clustering of heterotic groups is reasonable. 与系谱比较,杂种优势群的划分结果比较合理。
The utilization of heterotic group is one of the important contents in maize breeding research. 杂种优势群是玉米育种研究的重要内容。
It also summarized these kinds of molecular markers 'application in crops cultivars identification and fingerprinting, gene location and assisted selection breeding, division of heterotic groups and heterosis prediction and cytological studies. 综述了这几类分子标记在作物品种鉴定与绘制指纹图谱,基因定位与辅助选择育种,杂种优势群的划分与杂种优势的预测和细胞学研究等方面中的应用现状。
The classification methods and research status on the application of maize heterotic grouping were summarized and its enlightenment to the research on maize breeding in Tianjin was introduced. 简述了我国玉米种质类群划分方法和利用研究现状,同时阐述了其对天津市玉米育种研究的启示。
One hundred and thirteen SSR markers with polymorphism were used to study the genetic diversity of 26 popcorn inbred lines derived from 8 sources, and their genetic relationship with 20 normal maize inbred lines representing 6 different heterotic groups. 利用113对多态性SSR引物研究了来源于8个基础材料的26个爆裂玉米自交系的遗传多样性及其与分属6个杂种优势类群的20个普通玉米骨干自交系的种质关系。
Study on Heterotic Ecotype of Two Line Japonica Hybrid Rice in North China 华北两系杂交粳稻优势生态型初步研究
Maize germplasm gets more and more mixed. To make full use of heterosis, it is very important for maize breeders to distinguish heterotic groups and to design heterotic patterns. 玉米种质日趋复杂,对现有种质资源进行杂种优势群的划分,构建杂种优势模式的基本框架,将对进一步提高杂种优势利用水平,对当前和今后的玉米育种工作有重要的指导意义。
To define heterosis group and heterotic patterns, it is tremendously significant for improving the efficiency in maize breeding. 明确杂种优势群划分,发掘杂种优势配对模式,对于提高玉米育种效率具有十分重要的意义。
Ninety one maize inbred lines in this paper were used to study their genetic diversity and divide heterotic group by SSR molecular marker technology. 本文以引进的91份玉米自交系为材料,采用SSR分子标记技术进行遗传多样性和杂种优势类群划分的研究。