newcastle disease (nd) is one of the most serious illnesses of chickens. live vaccines are widely used to prevent chicken from the disease all over the world. to access the effective and potentiate nd vaccine, a homogenous subpopulation from lasota strain was selected following cultivation of the virus on primary chicken embryofibroblast (cef) cells. pathogenicity indices and molecular characte...

Thyroglobulin (TG) is a homodimeric glycoprotein synthesized by the thyroid gland. To date, two hundred twenty-seven variations of TG gene have been identified in humans. Thyroid dyshormonogenesis due to mutations an estimated incidence approximately 1 100,000 newborns. The clinical spectrum ranges from euthyroid mild or severe hypothyroidism. purpose present study was identify and characterize...

increasing of wood demand is currently one of the most important problems in our society. different clones of populus nigra from salicacea as a native fast-growing species have a good potential for planting in wide scale. but because of the ecological differences in the field, especially. temperature alterations, segregation of the cold resistant clones in relation to in seedling stage establis...

The silver crucian carp (Carassius auratus gibelio), a gynogenetic teleost, is a promising model for the study of evolutionary genetics in vertebrates. We identified ten gynogenetic clones (FZ-I~FZ-X) from triploid silver crucian carp, collected from Fangzheng County in Heilongjiang Province, China, using microsatellite markers. The genetic diversity of these gynogenetic clones was analyzed usi...

To clone... Or not to clone? That is a good question! Cloning has its advantages, but also its disadvantages. We might not realize what we are doing. It is like a sword with two blades. On one hand, it can save many lives. On the other hand, it can do a lot of harm. A question mark hangs over the future of cloning. Who are we to decide about someone’s life, his future, his happiness?

Two cDNA clones for maize cytosolic glyceraldehyde-3-phosphate dehydrogenase are described. One is about 97% similar in coding capacity to a previously published clone [Brinkmann et al. (1987). J. Mol. Evol. 26, 320-328], while the other shows only 88% similarity. Evidence points toward the three cDNAs being the products of three genes, to be called Gpc1, Gpc2, and Gpc3. When the least similar ...