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Genetic diversity is one of the important considerations in selecting parents for applied cultivar development in soybean [Glycine max (L.) Merr,]. Recent studies have shown that southern and northern U.S. soybean cultivars belong tb two very distinct gene pools based on pedigree and molecular marker analysis. A study was conducted to evaluate the potential of matings between southern and northern cultivars for applied soybean breeding. Nine populations were derived from matings of two southern soybean cultivars, Johnston and Stonewall, with three ancestral, AK. (Harrow), Lincoln, and Mandarin, and three improved, Flyer, Sibley, and Zane, northern cultivars. Field trials showed statistically significant differences among and within crosses for mean yield, maturity, height, seed quality, seed weight, protein, oil, and fatty acid composition. There were significant differences in means and genetic variances among populations derived from male (northern) cultivars for mean yield and all other traits recorded. Results suggested that improved northern cultivars would be useful parents for practical breeding programs in the south. Populations derived from Fflyer produced the highest mean yields. A significant correlation (r = -0.82) between coefficient parentage (CP) value and genetic variance estimate for cross yield may indicate that CF is a useful measurement in predicting genetic variation among matings of inbred soybean cultivars. [ABSTRACT FROM AUTHOR]

The article discusses the study which aims to identify the perioperative factors affecting immediate surgical outcome in cats which undergoes a wide or radical en bloc reconstructive surgery for fibrosarcoma. Accordingly, feline fibrosarcoma (FSA) is one of the most common subcutaneous neoplasm in cats. The study evaluates 153 cats with histologically confirmed fibrosarcoma. It shows that the wound complications and longer hospitalization periods were most frequent in cats that underwent surgery.