搜索结果: 16-30 共查到“国际动态 植物遗传学”相关记录47条 . 查询时间(1.264 秒)
New way to identify disease-resistant genes in chocolate-producing trees（图）
New way disease-resistant genes chocolate-producing trees
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2019/12/13
Chocolate-producing cacao trees that are resistant to a major pathogen were identified by an international team of plant geneticists. The NSF-funded finding points the way for plant breeders to develo...
Plant gene discovery could help reduce fertilizer pollution in waterways（图）
Plant gene reduce fertilizer pollution waterways
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2019/10/18
Over-fertilization of agricultural fields is a growing environmental problem. Excess phosphorus from fertilized cropland frequently finds its way into nearby rivers and lakes. The resulting boom of aq...
Is a milder mustard on the way?（图）
bitter taste crystal structure
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2019/10/23
The mustards, broccolis and cabbages of the world share a distinct and bitter taste. Some consider the flavor of cruciferous plants their strongest attribute. But even in India and China, where these ...
促进被子植物种间遗传隔离的机制研究取得重要进展（图）
被子植物种 遗传隔离 分子机制
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2019/7/10
物种之间的遗传隔离是维持一个物种不与其他物种混杂的关键，有多种因素可以导致物种间的遗传隔离。160年前，英国博物学家达尔文用实验验证了一种植物的花粉在与其他物种花粉的竞争中“胜出”的现象，即后来称为“同种花粉优先”的现象。这种现象非常重要，维护了物种的纯系遗传。然而，在过去的一个多世纪中，人们对这种现象的分子机制仍然知之甚少。
Penn Biologists Show How Plants Turn Off Genes They Don’t Need（图）
Penn Biologists Plants Turn Off Genes They Don’t Need
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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...
Receptors for Neuron Communication in Humans Vital for Reproduction in Mosses（图）
Receptors Neuron Communication Humans Vital Reproduction in Mosses
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2017/9/1
A new study led by José Feijó, professor of cell biology and molecular genetics at the University of Maryland, revealed two previously unknown roles for glutamate receptor-like proteins in plants: con...
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
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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...
New method for tapping vast plant pharmacopeia to make more effective drugs
New method plant pharmacopeia more effective drugs
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2017/4/27
These are just three familiar examples of the hundreds of thousands of small molecules (also called specialized or secondary metabolites) that plants use as chemical ammunition to protect themselves f...
Plant Genes May Lack Off Switch,But Have Volume Control
Plant Genes Lack Off Switch Volume Control
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2017/4/27
Scientists at the University of California, Davis have discovered that DNA sequences thought to be essential for gene activity can be expendable. Sequences once called junk sometimes call the shots in...
Scientists develop genetic path to tastier tomatoes
Scientists genetic path tastier tomatoes
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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...
胡萝卜基因组序列草图绘出
胡萝卜基因组序列 草图
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2016/5/11
来自美国的一个研究小组称，他们完成了对30余种胡萝卜样品的测序，绘制出了胡萝卜基因组序列草图。这很可能是迄今最完整的蔬菜基因组序列草图。研究人员称，这一研究阐明了胡萝卜的起源和演化过程，对改善胡萝卜和其他农作物的营养价值提供了可能。相关论文在线发表在《自然·遗传学》杂志网站上。胡萝卜和生菜、芹菜属于植物中的一大类，在中国、欧洲以及东南亚地区的栽培极为广泛。其根部富含胡萝卜素、花青素和多种维生素，质...
MIT科技评论“2016十大突破性技术”出炉
MIT科技评论 2016十大突破性技术
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2016/2/25
近日，由麻省理工学院（MIT）主办的知名科技期刊《麻省理工科技评论》(MIT Technology Review)，评选出了“2016年十大突破技术”。《麻省理工科技评论》称，在过去的一年里，这十项技术均已到达一个里程碑式的阶段或即将到达这一阶段。《麻省理工科技评论》创刊于1899年，是世界上历史最悠久、影响力最大的技术商业类杂志，现已发展为具有全球影响力的数字化平台。自2001年起，《麻省理工科...
On Darwin's birthday,IU study sheds new light on plant evolution
On Darwin's birthday IU study new light plant evolution
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2016/2/23
On Charles Darwin’s 207th birthday, a study from Indiana University is shedding new light on the importance of genetic diversity in plants.The work, reported today in the journal PLOS Biology, employs...
Ancient gene network helps plants adapt to their environments
Ancient gene network plants environments
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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...
Some plants regenerate by duplicating their DNA（图）
DNA plants regenerate
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2014/12/1
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...