搜索结果: 1-14 共查到“植物遗传学 genetic”相关记录14条 . 查询时间(0.169 秒)
How do sunflowers manage to grow in the desert? Wild sunflowers display extensive variation, both between and within species. Scientists now report that variation is preserved by blocks of "supergenes...
Scientists develop genetic path to tastier tomatoes
Scientists genetic path tastier tomatoes
2017/2/16
Some consumers crave tastier tomatoes than those available at the supermarket. Now, scientists at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) and their partners hav...
Genetic Variability in Hydrastis Canadensis L. Using RAPD Analysis
genetic variation medicinal plant species goldenseal RAPDs AMOVA UPGMA
2014/11/17
ABSTRACT GENETIC VARIABILITY IN HYDRASTIS CANADENSIS L. USING RAPD ANALYSIS FEBRUARY 2009 KERRY J. KELLEY, B.A. MOUNT HOLYOKE COLLEGE M.A. UNIVERSITY OF MASSACHUSETTS AMHERST Directed by: Professor Ly...
Genetic study tackles mystery of slow plant domestications
Genetic study tackles mystery slow plant domestications
2014/5/13
“The Modern View of Domestication,” a special feature of The Proceedings of the National Academy of Sciences (PNAS) published April 29, raises a number of startling questions about a transition in our...
Comparing the efficiency of sampling strategies to establish a representative in the phenotypic-based genetic diversity core collection of orchardgrass (Dactylis glomerata L.)
core collection genetic diversity germplasm collection orchardgrass phenotypic variation representativeness sampling strategies
2014/2/24
Establishing a core collection that represents the genetic diversity of the entire collection with a minimum loss of its original diversity and minimal redundancies is an important problem for gene ba...
Genetic diversity in portuguese native Vitis vinifera L. ssp. vinifera and ssp. sylvestris
domestication centre genetic structure Portuguese vinifera and sylvestris subspecies vine
2014/3/10
To assess the different origins of Portuguese grapevine varieties, we used six nuclear and four chloroplastidal microsatellites as molecular markers, in order to compare the genetic structure of nativ...
Genetic diversity of selected medicinal plants in protected landscape areas in the Czech Republic
active substances content medicinal plants protected landscape area
2014/3/10
Agrimonia eupatoria, Betonica officinalis, Hypericum perforatum, Plantago media, Salvia pratensis and S. verticillata were selected as subjects for a research project studying the genetic diversity of...
Results of projects on collecting, mapping, monitoring, and conserving of plant genetic resources 1990–2008
collecting conservation crop wild relatives landraces mapping monitoring plant genetic resources
2014/3/10
Old landraces and obsolete cultivars represent a national heritage that must be conserved for future generations. Similarly, crop wild relatives (CWR) are a valuable gene pool for plant breeding or fo...
ISU researcher identifies genetic pathway responsible for much of plant growth
ISU researcher genetic pathway plant growth
2009/5/21
Researchers at Iowa State University have discovered a previously unknown pathway in plant cells that regulates plant growth.
Yanhai Yin, an assistant professor in genetics, development and cell biol...
甲型肝炎病毒衣壳蛋白融合基因植物表达载体的构建与遗传转化柑桔的研究Construction of the Plant Expression Vector with Hepatitis a Capsid Protein Fusion Gene and Genetic Transformation of Citrus.Sinensis Osbeck
甲型肝炎病毒衣壳蛋白融合基因 柑桔 植物表达载体 遗传转化 食用疫苗
2008/1/20
摘要
基因工程领域的研究进展使得植物体成为具有重要经济价值的药用蛋白的生产体系。以含甲型肝炎病毒结构基因cDNA的克隆载体pCDNAⅡA16为模板，用甲型肝炎病毒衣壳蛋白融合基因特异引物进行PCR扩增，得到全长2.2kb衣壳蛋白融合基因序列。经测序鉴定后正向克隆于植物表达载体pBI121中，衣壳蛋白融合基因位于pBI121质粒T-DNA左右边界区间内，处于CaMV35S启动子控制之下。经限制性内...
注意植物迁地保护中的遗传风险Pay Attention to Genetic Risks in Plant Ex Situ Conservation
植物园 迁地保护 遗传风险 遗传管理
2008/1/6
摘要稀有濒危植物迁地保护的长期目标之一就是要保护物种的遗传多样性和进化潜力。介绍了稀有濒危植物在植物园迁地保护过程中存在的一系列遗传风险。由于引种或取样的不足，容易导致被保存的物种缺乏足够的遗传代表性；盲目的引种、不合理的定植以及材料的来源不清则会导致稀有濒危植物的遗传混杂、近交衰退或杂交衰退；人为选择和生长环境的改变也容易造成濒危物种对迁地保护的遗传适应。在实际的迁地保护工作中，这些遗传风险往往...
植物数量性状遗传体系的分离分析方法研究Segregation Analysis of Genetic System of Quantitative Traits in Plants
植物数量性状 主基因-多基因遗传模型 分离分析
2008/1/6
摘要
在传统的数量性状多基因遗传模型基础上提出主基因-多基因遗传模型具普遍性，纯主基因或纯多基因遗传模型只是其特例。由此初步建立了植物数量性状遗传体系分离分析方法。目前该方法可以检验2～3个主基因的个别遗传效应、多基因整体的遗传效应和两者的遗传率。本文介绍这种分离分析方法的研究经过、主要进展及应用效果，并以实例说明其分析步骤、方法和效果。Abstract: Based on the trad...
期刊信息
篇名
Genetic engineering of the biosynthesis of glycinebetaine enhances photosynthesis against high temperature stress in transgenic tobacco plants
语种
英文
撰写或编译
撰写
作者
Xinghong Yyang,Zheng Liang,Cong...
Research, conservation and utilisation of plant genetic resources and agro-biodiversity enhancement – Contribution of the Research Institute of Crop Production Prague-Ruzyně
genetic resources landraces neglected crops agro-biodiversity
2014/3/19
Activities on plant genetic resources in the Czech Republic are concentrated in the National Programme on Conservation and Utilisation of Plant Genetic Resources. Eleven institutions maintain 51,000 a...