搜索结果: 1-15 共查到“植物遗传学 plants”相关记录17条 . 查询时间(0.055 秒)
分子遗传学前沿讲座（网络报告）：Regulation of chromatin positioning by the dynamic nuclear lamina in plants（时间：2022年7月7日15:00）（图）
分子遗传学 前沿讲座 植物基因组
2023/4/9
分子遗传学前沿讲座（网络报告）：Regulation of chromatin positioning by the dynamic nuclear lamina in plants（时间：2022年7月7日15:00）。
Red tulips, pink magnolias, purple lilacs: How do plants create all that color?（图）
Red tulips pink magnolias purple lilacs plants create that color
2020/5/29
Spring is in full bloom, from red tulips to pink magnolias to purple lilacs. How do plants create all that color? The hues that attract pollinators and provide beautiful bouquets begin with the format...
近日，由四川大学牵头，与华北理工大学、哈佛大学、兰州大学的研究人员合作完成的题为“Prickly waterlily and rigid hornwort genomes shed light on early angiosperm evolution”（《芡实和金鱼藻基因组揭示被子植物早期演化》）的论文成果在Nature Plants上发表。我校为论文第一单位，我校生命科学学院刘建全教授为该项目...
Penn Biologists Show How Plants Turn Off Genes They Don’t Need（图）
Penn Biologists Plants Turn Off Genes They Don’t Need
2017/9/5
A plant has one genome, a specific sequence of millions of basepairs of nucleotides. Yet how this genome is expressed can vary from cell to cell, and it can change as a plant goes through various life...
Fine-tuning dosage of mutant genes unleashes long-trapped yield potential in tomato plants（图）
Fine-tuning dosage mutant genes unleashes long-trapped tomato plants
2017/7/20
Breeding in plants and animals typically involves straightforward addition. As beneficial new traits are discovered—like resistance to drought or larger fruits—they are added to existing prized variet...
Ancient gene network helps plants adapt to their environments
Ancient gene network plants environments
2016/2/23
The only constant is change. In evolution, there are, however, some exceptions. While the enormous diversity of life suggests that organisms are constantly being refitted with new or modified parts, m...
Selecting plants with increased total polyphenol oxidases in the genus Trifolium
expression analysis polyphenolic enzyme protein quality Trifolium medium Trifolium pratense
2015/12/29
One of the aims in red clover (Trifolium pratense) breeding is to increase the polyphenol oxidase (PPO) activity, which may effectively reduce protein breakdown in silage and when cattle are fed by fr...
CHAMPAIGN, Ill. — When munched by grazing animals (or mauled by scientists in the lab), some herbaceous plants overcompensate – producing more plant matter and becoming more fertile than they otherwis...
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...
降低转基因植物外源基因扩散的分子策略 Molecular Strategies for Decreasing the Gene Flow of Transgenic Plants
转基因植物 基因扩散 分子策略
2008/1/8
摘要
转基因植物可以通过花粉或种子将外源基因转移到其他植物，从而对生态环境造成潜在的危害。如何降低外源基因的扩散已引起了人们的极大关注。目前降低外源基因扩散的方法主要有叶绿体转化、花粉不育、种子不育、闭花受精、无融合生殖、暂时性控制及转基因缓和等。主要对各种方法的原理和优缺点及目前的使用情况进行综述。Abstract: Transgenic plants can transfer foreign...
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...
不定胚再生植株的染色体数目变异Variations in Chromosomal Number of Regenerated Melon Plants from Somatic Embryos
甜瓜 继代培养 不定胚再生植株 染色体数目变异
2008/1/3
本实验以甜瓜“小麦瓜”和“青皮绿肉”品种为试材，经不定胚诱导再生植株。分别调查了不同继代培养时间后形成再生植株的染色体数目，并将之与对照染色体数目相比较，发现通过诱导不定胚所得到的再生植株中存在着一定的变异，而且经过不同继代培养时间后，所得到的不定胚再生植株的变异程度不同，随着时间的增加，染色体数目的变异率从3.3%增加到30%，变异幅度也从2n=23~24增加到2n=13~48。从而得出结论：不...
转基因植物中筛选标记基因的利用及消除Using of Selective Marker Gene in Transgenic Plants and Its Removal
转基因植物 筛选标记基因 基因消除
2007/12/31
摘要在基因转移过程中，人们常常使用标记基因来筛选转化细胞或组织。常用的筛选标记基因尤其是抗生素抗性基因的使用往往对环境及植物体的生长发育产生不良影响，且影响基因多重转化。为了消除这些弊端，一种全新的发展策略即获取无选择标记的转基因植物应运而生。本文主要综述转基因植物中有关筛选标记基因及其消除方法。
Abstract:Selective marker gene is usually used to...
图位克隆技术在分离植物基因中的应用 The Application of Map-based Gene Cloning Method on Isolating Genes of Plants
图位克隆 基因定位 物理图谱 比较作图
2007/12/7
摘要本文综述图位克隆技术的原理及基本技术环节,并与其它基因克隆技术相比较说明图位克隆技术的优缺点。本文还对近年来图位克隆技术在分离不同的植物发育基因上的广泛应用进行了简要概述,并对其应用前景和近期的预期进展作出展望。
Abstract:In this review,the principle and basis steps of map-based gene cloning on plant w...
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...