Báo cáo sinh học: "Amylase polymorphism Drosophila melanogaster: haplotype frequencies in tropical African and American populations" pot

... origins, 6 in the Afrotropical region, mainland and Indian Ocean islands, and one in Tropical America (Petit Bourg; Original article Amylase polymorphism in Drosophila melanogaster: haplotype ... haplotypes at the Amylase loci of D melanogaster were determined in 10 samples from 7 different tropical origins, including the African mainlan...

Ngày tải lên: 14/08/2014, 19:22

... presented in table II. Both intrastrain and interstrain variation in copy number and their location are characteristic for all strains. In low activity strains LA and LApas ... mating activity and close inbreeding. These 3 strains (LA, HA and LA +) were kept in the collection as families obtained from individual brother-sister matings...

Ngày tải lên: 14/08/2014, 19:22

... Strong latitudinal clines in the frequencies of the 4 inversions have been described in the USA (Mettler et al, 1977; Stalker, 1980), Japan (Inoue and Watanabe, 1979; Inoue et ... be between 1.16 and 1.25. Knibb (1986) found a positive and significant correlation of inversions In( 2L)t, In( 2R)NS and In( 3L)P with the temperature and rai...

Ngày tải lên: 14/08/2014, 20:20

... population. natural populations encounter a scarcity of resources during Winter and Spring in France and during Summer in Tunisia. Assuming that differences between geographic populations are ... protected against desiccation (David et al, 1983) and the water balance is maintained by water ingestion (Fairbanks and Burch, 1970; Arlian and Ecks...

Ngày tải lên: 14/08/2014, 20:20

... exist in most African countries, have centred around staff retention through incentives such as allowances, salary top-ups, and better working conditions [24], training and retraining, including ... workers in Zambia, 16% in Tanzania, 26% in Angola , 36% in Madagascar , 42% in Mozambique, and 48% in Mauritius. For nurses, the rate was 9.2% in Zambia, 12 % in Ango...

Ngày tải lên: 18/06/2014, 17:20

... HNN. This mapping is performed by expanding (4)foragiven block length N and a number of CIR lengths L, starting from L = 2 and increasing L until a definite pattern emerges in X and I in (5). The ... s 0 and s N+1 to s N+L−1 and are equal to 1/ √ 2+ j(1/ √ 2)) The expressions for the unknowns in (9)arefoundby expanding (4), for a fixed data block length N and increasing CIR le...

Ngày tải lên: 21/06/2014, 16:20

... Finland, Biotechnology and Food Research, Biometrical Genetics, 31600 Jokioinen, Finland b Finnish Game and Fisheries Research Institute Jyväskylä, Survontie 9, 40500 Jyväskylä, Finland c Finnish ... A., Tobin D., Dobly A., Houlihan D., Martin S., Mäntysaari E.A., Ritola O., Ruohonen K., Recording strategies and selection potential of feed intake measured using the X-ray method in rai...

Ngày tải lên: 14/08/2014, 13:22

... In addition to the high (H) and low (L) lines, a random-bred control (C) line was maintained. Every generation, there were ! 300 chicks each in the H and L lines and ... In the 9th generation, the inbreeding level was 7.3, 3.6 and 9.4% in the H, C and L lines, respectively. The numbers of birds in the H, C and L lines of t...

Ngày tải lên: 14/08/2014, 19:22

... exist in the meiotic and spermatogonial germ cell stages. The reduction in both female and male offspring and the higher sterility in broods 4-5 indicate that germinal selection ... obtained for number of progeny in broods 1 and 2, which is indicated by high negative genetic correlations. No significant genotype-environment interaction w...

Ngày tải lên: 14/08/2014, 19:22

... (Kearsey and Kojima, 1967; Cavicchi et al, 1989), our findings do not indicate which genes are mainly involved in determining the size differences observed between treated and ... condition (Watkins and Goodell, 1967). The practical interest in the effect of static magnetic fields involves many topics in physiology and medicine, including...

Ngày tải lên: 14/08/2014, 20:20