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Pea in Biological News

Scientists unravel the genetic coding of the pea

The pea is one of many important crop species that is unsuited to the Agrobacterium-based genetic modification techniques that are commonly used to work with crops. Researchers, reporting in the open access journal Genome Biology have now discovered the first high-throughput forward and reverse ge...

Sex in the Caribbean: Environmental change drives evolutionary change -- eventually

...ce of volcanic and tectonic events. During the final phase, between about 4.5 and 3.5 million years ago, the Caribbean underwent a major change from a pea soup-like environment, fed by nutrient-rich waters surging up along South America, into a crystal-clear, nutrient-poor environment. "As the Caribb...

Computer model predicts brain tumor growth and evolution

...titute that helps increase access to human cancer tissue for research. The samples, sliced and sealed in a specimen slide, were as large as a chick pea or as small as the head of a pin. The tumor specimens used in the studies had been removed for diagnosis or surgical treatment of the tumor. Resear...

Why didn't Darwin discover Mendel's laws?

...where the laws of inheritance could be discerned." Moravian priest and scientist Gregor Mendel (1822 - 1884) studied clear-cut, inherited traits in pea plants, which he grew in the monastery gardens in Brno. Mendel showed that trait inheritance follow simple laws, which were later named after him. Men...

Rooted plants move mysteriously down greenways, scientists say

... GAINESVILLE, Fla. The wild pea pod is big and heavy, with seemingly little prayer of escaping the shade of...dors greenways that link woods or other natural areas have discovered the pea and similar species share, given a clear shot, a mysterious ability for mob...

Rice University establishes National Corrosion Center

...ting corrosion involves coatings. With Rice's expertise in nanotechnology, pea is optimistic about developing superhydrophic nanocoatings that can keep wa...ts. "This is a global problem, and we're looking for global solutions," pea said. ...

Sowing a future for peas

... Science Laboratory could help breeders to develop pea varieties able to withstand drought stress and cli...ll the different small molecules or metabolites in pea plant leaves. This profile, known as the metabolo...information could be used to identify varieties of pea and other pulse crops that are more tolerant to ch...

American Chemical Society's Weekly PressPac -- March 26, 2008

...ten and colleagues studied the effects of electricity on the ability of the pea plant to produce pisatin, an antifungal substance. They found that exposing pea plants to certain sub-lethal doses of electric current produced 13 times hi...

Chloroplast f and m Thioredoxins Discovered in Nonphotosynthetic Tissues

...es and roots, suggests that these TRX types may function as messengers or in the regulation of transporter molecules. The proteins were also found in pea seeds and in the ovules and pollen grains of flowers in regions of active cell division, where the f and m TRX types may function in redox regulation ...

New southernpeas developed by ARS, cooperators

...atory that has only one greenness gene. In fact, Fery expects GreenPack-DG to replace the earlier southernpea as a favorite for processing into frozen pea products. GreenPack-DG resulted from cooperative research conducted by ARS and Western Seed Multiplication, Inc., Wadmalaw Island, S.C. WhipperS...

New genetic analysis forces re-draw of insect family tree

...esent 45 per cent of the animal species on earth. They also included one orthopteran (the grasshopper Locusta migratoria) and one hemipteran (the pea aphid Acyrthosiphon pisum), both of which are uncontested out-groups to the holometabolous insects. ...

Alternatives to the use of nitrate as a fertiliser

...e tolerance shown by some crop species such as the pea is of great interest due to the studies of the phy...cesses associated with tolerance to ammonia in the pea are multiple with respect to spinach. In the pea plant there is greater regulation of the absorptio...

Genetic defenders protect crops from fungal disease

...tacks barley, and Erysiphe pisi, one that thrives on the leaves and pods of pea plants. "Disabling just three genes allowed the pea powdery mildew to reproduce as well on Arabidopsis as it does on its normal...

NHGRI targets 12 more organisms for genome sequencing

...; a disease-carrying insect (Rhodnius prolixus); a pea aphid (Acyrthosiphon pisum); a wasp (Nasonia vitri...tanding this widespread infectious disease. The pea aphid (Acyrthosiphon pisum) is an insect which cau... millions of dollars of crop damage each year. The pea aphid is a model for studying rapid adaptation bec...

Alarm pheromone causes aphids to sprout wings

...ear in Ecology Letters, researchers at the University and Max-Planck-Institute in Jena, Germany, now show that exposure to alarm pheromone also causes pea aphids to produce winged offspring that leave their host plant when mature. Because some plants can also release (E)-â-farnesene, they could in theory...

Maine Researchers Find Exceptions to Old Rules of Genetic Inheritance

...ild haplotype. According to the distribution predictions set out by Gregor Mendel, the 19th 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 pa...
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