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Tag: "flowering" at biology news

Whole genome fine map of rice completed

...ed before the divergence of the grasses from other flowering plants. More importantly, the on-going duplications of single genes provided a unlimited source of raw materials for gene genesis, creating differences among the grass family. The Chinese Superhybrid Rice Genome Project, initiated by BGI in 2000, fo...

Scientists identify genetic pathways essential to RNA interference

...lly identified in the C. elegans roundworm and the flowering plant Arabidopsis thaliana, both of which are common model organisms for biological research. The process interrupts the usual transfer of instructions from double-stranded DNA, through single-stranded messenger RNA and finally into proteins. Short, ...

New RNA polymerase discovered in plants

..." in plants that plays a significant role in plant flowering and DNA methylation, a key chemical process essent...e plants survived, but there were slight delays in flowering and some strange floral defects. The plants were having trouble with organ identity ?stamens tried t...

Biodiversity hotspots identify conservation priorities

...tional Park). This hotspot is home to about 5,300 flowering plant species (of which almost 4,000 are endemics), about a third of the world's oak and pine tree species, and over 1,500 vertebrate species (including 134 endemic species). Among many charismatic flagship species in the region is the volcano rabbit...

Scientists identify genetic pathways essential to RNA interference

...lly identified in the C. elegans roundworm and the flowering plant Arabidopsis thaliana, both of which are common model organisms for biological research. The process interrupts the usual transfer of instructions from double-stranded DNA, through single-stranded messenger RNA and finally into proteins. Short, ...

The evolutionary triumph of flower power

...ines for the first time the whys and wherefores of flowering plants in an evolutionary context. While flowers ...val uses such as edible or medicinal flowers, most flowering plants grown in the flower industry today are not used for any purpose other than emotional satisfac...

Maine Researchers Find Exceptions to Old Rules of Genetic Inheritance

...h century Austrian monk who studied inheritance in flowering pea plants, males and females should pass the t haplotype to half their offspring. In a strange twist to what Mendel might have predicted, the males pass the t haplotype to nearly 100 percent of their offspring (a phenomenon known as "transmission r...

UNC plant researchers discover proteins interact to form hair-trigger protection against invaders

...each scientists an enormous amount about all other flowering plants, which are closely related genetically, Dangl said. The new genomics technology, developed by Patrick Brown and David Botstein at Stanford University, has been applied to yeast, fruit flies and humans but not to plants in a large, systematic w...

FDA approves more generic AIDS drugs

...each scientists an enormous amount about all other flowering plants, which are closely related genetically, Dangl said. The new genomics technology, developed by Patrick Brown and David Botstein at Stanford University, has been applied to yeast, fruit flies and humans but not to plants in a large, systematic w...

Discovery of an American salamander where it shouldn't be: Korea

...ated to the American alligator. About 65 genera of flowering plants in Asia also have close relatives in the eastern U.S. After Karsen found the salamander and was unable to identify it, he approached amphibian specialists M. S. Min of Seoul National University and S. Y. Yang of Inha University in Incheon, as...

MSU researchers receive $4 million grant to uncover gene functions

...genes from the Arabidopsis plant. Arabidopsis is a flowering plant whose entire 29,000 gene sequence is known. Scientists will focus on the genes which encode the chloroplast-targeted proteins that trigger photosynthesis. Understanding how these genes operate could yield significant breakthroughs in biotechn...

Long-sought flower-inducing molecule found

...gen" is central for our understanding of how plant flowering is controlled. All attempts to identify a single s...eders will get a new tool to control and adopt the flowering of plants, something that has been of great importance for agriculture but that can also lead to the...

Making plant cells work like miniature factories

...tent in the cells of Arabidopsis thaliana, a small flowering plant that is widely used as a model organism in plant biology. Arabidopsis is a member of the mustard (Brassicaceae) family, which includes cultivated species such as cabbage and radish. "Arabidopsis is not a major crop like corn and soybeans," Ye...

Why Christmas trees are not extinct

... other conifers are 10 times shorter than those in flowering trees. But a University of Utah study suggests why...them at a serious disadvantage in competition with flowering trees in temperate forests," says Sperry. The study was part of a University of Utah doctoral thesi...

Science's Breakthrough of the Year: Watching evolution in action

...Year for Plants: Several key molecular cues behind flowering and other plant mysteries and surprises came to light in 2005. For example, plant molecular biologists pinned down the identity of a signal that initiates the seasonal development of flowers. Other research focused on a gene involved in stimulating f...

Scientists map one of biology's critical light-sensing structures

...ne day lead to such things as plants whose growth, flowering and death can be precisely manipulated. "We can n...e year, for example. Gaining precise control over flowering events, says Vierstra, is a key to the success or failure of most crops, as most of what we eat come...

The secret love life of plants

...ryo during the early stages of its development. In flowering plants, there is a complicated double-fertilisatio...endosperm develops is not fertilised.The ovules of flowering plants are housed in a carpel. Pollen lands on the flower's stigma and forms a pollen tube. It then ...

Natural selection at single gene demonstrated

...ular on the FRIGIDA (FRI) gene, known to influence flowering time. A. thaliana was once a plant that bloomed annually. But two versions of FRI that appeared thousands of years ago enabled the plant to flower year-round, helping it out-compete other plants. Toomajian and his group showed that these two versi...

Growing crops to cope with climate change

...key to understanding how plants have adapted their flowering behaviour to different environments. The John Inn..., seasons and traditional cool, wet summers. Later flowering in barley means it has a longer growing period to amass yield. If British summers get hotter and dri...

Paleontologists learn how not to become a fossil

...a urchins. Look at birds. Look at mammals. Look at flowering plants," he said. "I'd like to think that we've produced a template for analyzing other groups. And of course as those analyses begin to accumulate, we'll have a much clearer picture of what's missing from the fossil record and how to make correction...

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