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Vitamin E discovery in maize could lead to more nutritious crop
Vitamin E maize more nutritious crop
2017/11/23
New research has identified genes that control vitamin E content in maize grain, a finding that could lead to improving the nutritional profile of this staple crop.Cornell University scientists and co...
The “jumping genes” of maize have finally been mapped by an international team led by researchers at the University of California, Davis, and the Cold Spring Harbor Laboratory. The discovery could ult...
全球变暖可能致主要农作物减产
农作物 森特霍尔德·阿森
2017/8/17
一个国际科研小组2017年8月15日在美国《国家科学院院刊》上发表的一项新研究显示，全球变暖可能导致小麦、水稻、玉米、大豆等主要农作物全球产量减少。
美国佛罗里达大学教授森特霍尔德·阿森和国际同行报告说，人类三分之二的热量摄入源自小麦、水稻、玉米和大豆，但气候变化对这4种农作物的影响却不清楚。为此，他们利用多种方法对此前已有的70项相关研究进行了综合分析。 研究人员发现，所有分析方法均得出同一结...
美国科学家开发全基因组测序水稻变体
全基因组 水稻变体
2017/8/16
水稻不仅是全球一半人口的主食，也为研究能源作物提供了模型。为优化生物燃料作物，科学家正寻找决定水稻产量、抗病性和灌溉效率等性状的基因。最近在《植物细胞》杂志刊登的一篇论文中，美国加州大学戴维斯分校的研究团队与来自能源部联合基因组研究所的合作者，宣布开发出粳稻Kitaake的第一个全基因组测序快中子诱导突变体种群，一种新型的短生命周期水稻品种模型。
Harnessing rich satellite data to estimate crop yield（图）
Harnessing rich satellite data estimate crop yield
2017/9/5
Without advanced sensing technology, humans see only a small portion of the entire electromagnetic spectrum. Satellites see the full range—from high-energy gamma rays, to visible, infrared, and low-en...
由美国农业部农业和食品研究计划（AFRI）资助，堪萨斯州立大学科学家牵头组成的一个国际研究小组，日前成功破译了小麦野生祖先全部100亿个遗传密码。这次取得突破性研究进展的作物是1万年前人类首次驯化野生小麦的祖先（Wild Emmer）。它的驯化曾标志着人类社会从狩猎和群居时代迈向农业社会的关键一步。这次研究采用了字母A、C、G和T分别代表腺嘌呤、胞嘧啶、鸟嘌呤和胸腺嘧啶等DNA分子的四个化学结构单...
Maize from El Gigante Rock Shelter shows early transition to staple crop（图）
Maize El Gigante Rock Shelter early transition staple crop
2017/9/4
Mid-summer corn on the cob is everywhere, but where did it all come from and how did it get to be the big, sweet, yellow ears we eat today? Some of the answers come from carbon dating ancient maize an...
Researchers Find Corn Gene Conferring Resistance to Multiple Plant Leaf Diseases（图）
Researchers Corn Gene Resistance to Multiple Plant Leaf Diseases
2017/9/1
Alleles that confer multiple disease resistance are valuable in crop improvement though molecular mechanisms underlying their functions remain largely unknown. A quantitative trait locus, qMdr9.02, as...
A Whole-Genome Sequenced Rice Mutant Resource for the Study of Biofuel Feedstocks
Whole-Genome Sequenced Rice Mutant Resource Biofuel Feedstocks
2017/7/24
Rice is a staple food for over half of the world’s population and a model for studies of candidate bioenergy grasses such as sorghum, switchgrass, and Miscanthus. To optimize crops for biofu...
乙酸也可帮助植物耐旱
乙酸 植物耐旱 日本
2017/7/3
日本理化学研究所的一个研究小组近日发现，施加乙酸可增强植物耐干旱的能力，并揭示了其中的机理。迄今为止，主流方法是通过转基因技术来培育耐旱植物，这项新成果有望带来简单、廉价的农业技术，从而可不依赖转基因来减轻干旱灾害的影响。
Corn is grown not only for food, it is also an important renewable energy source. Renewable biofuels can come with hidden economic and environmental issues, and the question of whether corn is better ...
Corn is grown not only for food; it is also used as an important renewable energy source. But renewable biofuels can come with hidden economic and environmental issues.The question of whether corn is ...
First Step Taken Toward Epigenetically Modified Cotton（图）
First Step Toward Epigenetically Modified Cotton
2017/7/21
With prices down and weather patterns unpredictable, these are tough times for America’s cotton farmers, but new research led by Z. Jeffrey Chen at The University of Texas at Austin mi...
A new study in the April 3 issue of Nature Genetics describes an ancestry.com-type adventure that reveals the deep history of a family, including some disreputable relatives. But the family in this ca...
What bothers a plant? Why are some plants rare while others are common? Are the rare plants simply adapted to rare habitat or are they losing the competition for habitat? Are their populations small b...