搜索结果: 16-30 共查到“国际动态 动物遗传学”相关记录76条 . 查询时间(2.109 秒)
Don’t let their appearance fool you: Thimble-sized, dappled in cheerful colors and squishy, poison frogs in fact harbor some of the most potent neurotoxins we know. With a new paper published in the j...
Most of the frogs alive today owe a big thank you to the asteroid or comet that delivered the coup de grace to the dinosaurs.A new study by Chinese and American biologists shows that if the ...
Promiscuous salamander found to use genes from three partners equally
Promiscuous salamander genes three partners equally
2017/7/21
A promiscuous salamander has found a simple genetic formula for success: Mate with multiple males and use equal parts of each partner’s genetic material in her offspring.A University of Iowa–led team ...
Imagine if a dense thicket didn’t obstruct your path but instead picked you up and shuttled you through the forest. That’s what tightly packed DNA might be doing with important life molecules to get t...
Scientists Discover a Way to Sequence DNA of Rare Animals
Scientists Sequence DNA Rare Animals
2017/2/16
Rare and extinct animals are preserved in jars of alcohol in natural history museum collections around the world, which provide a wealth of information on the changing biodiversity of the planet. Thes...
New Gene-Editing Technology Cures Genetic Blood Disorder in Mice
New Gene-Editing Technology Cures Genetic Blood Disorder Mice
2016/11/4
A next-generation gene-editing system developed by Carnegie Mellon University and Yale University scientists has cured a genetic blood disorder in living mice using a simple IV treatment. Unlike the p...
Genetic diversity crucial to Florida scrub-jay's survival
Genetic diversity Florida scrub-jay survival
2016/11/4
Legendary conservationist Aldo Leopold once advised: "To keep every cog and wheel is the first precaution of intelligent tinkering." For the Endangered Florida Scrub-Jay, new research shows that ...
基因组测序揭示水熊虫极端环境适应性
基因组测序 水熊虫极端环境适应性
2016/9/21
水熊虫是一种小型水生动物，又称为缓步动物，2016年9月20日出版的《自然—通讯》发表了一篇有关其基因组测序的最新研究成果。该研究在缓步动物体内发现一种基因，其蛋白质能够抵抗人类培养细胞内的DNA损伤。这表明特异于缓步动物的蛋白质或有助于细胞抵抗DNA损伤来源。
Personality Changes Can Affect Fish Body Shape,Locomotion
Personality Changes Fish Body Shape Locomotion
2016/6/12
Evolutionary change in one trait can elicit evolutionary changes in other traits due to genetic correlations. This constrains the independent evolution of traits and can lead to unpredicted ecological...
Genetic mechanism found for fish adaptations to pollution
Genetic mechanism fish pollution
2016/2/23
A Washington State University biologist has found the genetic mechanism that lets a fish live in toxic, acidic water. The discovery opens new insights into the functioning of other “extremophiles” and...
Disruptions to embryonic reprogramming alter adult mouse behavior
embryonic reprogramming adult mouse
2016/2/22
Right after fertilization, embryos at the earliest stages of development tell their genes: "Forget what it was like in the sperm or egg where you came from."
When the process of epigenetic reprogramm...
UI biologists find sexuality,not extra chromosomes,benefits animal
UI biologists sexuality chromosomes animal
2016/2/22
Most animals, including humans, have two copies of their genome—the full set of instructions needed to make every cell, tissue, and organ in the body.
But some animals carry more than two c...
NEW RESEARCH LOOKS AT GENETIC VARIATION IN A HUMAN COMMENSALIST TOAD
GENETIC VARIATION HUMAN COMMENSALIST TOAD
2016/2/22
Most species are negatively affected when humans transform natural habitats into urban areas and agricultural lands, but a few species actually benefit from these activities. These species — called hu...
遗传数据重写猪驯化史
遗传数据 重写猪驯化史
2015/9/2
英国牛津大学科学家在线发表的一篇最新论文，通过遗传数据分析提供了关于猪是如何被驯化的新见解。这项研究显示，在动物驯化研究中曾使用的最主要的假设之一，与现代野猪和家猪的遗传数据出现了严重矛盾。在几千年前，人类驯化了野生的动物用于农业，这是人们在生产生活实践当中出现的一种文明进步行为，一般需要漫长的过程。长期以来科学家的假设是，所谓驯化需要永久性地把一个小种群从野生种群中隔离出来。
Inbreeding not to blame for Colorado’s bighorn sheep population decline,CU-Boulder study finds
Inbreeding not to blame Colorado’s bighorn sheep population decline CU-Boulder
2015/8/4
The health of Colorado’s bighorn sheep population remains as precarious as the steep alpine terrain the animals inhabit, but a new study led by researchers at the University of Colorado Boulder has fo...