THAT mouse Mecca, the Jackson Laboratory, has repeatedly pioneered in bringing mouse genetics to its present state. There was George Snell’s NobelPrize-winning work on histocompatibility, Roy Stevens’ work on embryonal carcinoma, Tibby Russell’s on hematopoiesis, and many others (reviewed by Paigen 2003a,b). It has also been the site of several important methodological innovations. First and mo...

in order to induce of genetic variation and selection of genotypes with desirable traits, seeds of three varieties of rapeseed sarigol (pf), rgs003 and zarfam were treated with different doses of gamma ray 500, 700 and 900 gy. to confirm the stability of the induced genetic traits, 66 mutant lines from m4 generation were studied in a randomized complete block design with three replications. twe...

objective: wheat is the most important crop in iran. self sufficiency in wheat production is one of the economic and food safety policies in the country. in spite of the efforts which have been made in this area, the mean of wheat yield in iran is less than its world average. methods: in order to identifying of the high yielding wheat lines with optimal characteristics and to determine the trai...

Breeding maize with high contents of zinc, iron and provitamin A (PVA) could be effective in mitigating micronutrient deficiency developing countries a reliance on maize-based diets. Information the mode inheritance iron, PVA grain yield (GY) would facilitate development varieties enhanced these nutrients. Twenty-four yellow to orange inbred lines their 96 F1 hybrids generated using North Carol...

JEL classification: F1 F12 We show theoretically and confirm empirically that domestic productivity has a significant impact on the demand for foreign varieties under the assumption that domestic and foreign varieties are imperfect substitutes. In particular, the demand for imported varieties ismore elastic for countries with comparative advantage. For an average good facing a median trade barr...