báo cáo khoa học: "Variability of eye colour mutations in natural of Drosophila melanogaster" pdf

... with the sequence of intensity of the directional pressures for such loci. The influence of the 2nd factor increases from figure 3 to figure 5, showing in figure 5 an equal ... fluctuation of gene frequencies, due to the random sampling of gametes, leads to fixation or loss of alleles in the population (K IMUR .a, 1964), in the ab...

Ngày tải lên: 09/08/2014, 22:22

... (0.1869 in cellar, 0.1254 in vineyard and 0.1549 in pine-wood), the number of loci used (48 in cellar, 27 in vineyard and 34 in pine-wood) and the number of generations ... obtain the F, ; 70 individuals of each F2 were observed to detect homozygous individuals bearing recessive mutations, both for the colour and morpho- logy of t...

Ngày tải lên: 09/08/2014, 22:22

... lactis Linnaeus (Acari: Carpoglyphidae) was originally of a strain maintained at Tokyo Women’s Medical College. The strain was maintained at 25 °C and 75% relative humidity, and fed a mixture of dry ... protein processing. Eur J Biochem 154, 193–196. 36 Bradford MM (1976) A rapid and sensitive method for the quantitation of microgram qualities of protein utiliz- ing the principle of...

Ngày tải lên: 16/03/2014, 06:20

... [4]. For instance, levels of Ψ min recorded in C. atlantica in natural stands reached –4 MPa [1]. Interestingly, P. nigra and C. atlantica are co-occurring species in Mediterranean mountains, while ... Hv (10 5 m 2 m –2 ) recorded in the main shoot of seedlings of four Mediterranean conifers during April and September. Mean and standard er - ror of the mean (SEM) of 6 to 2...

Ngày tải lên: 08/08/2014, 14:21

... leading to a general weakening of trees (OEPP/EPPO, 1990). An increased inci- dence in eastern Europe in the 1980s has been of concern following the 1976 drought, affecting ... between seedlings grown from seed or bought in root trainers. Each point is the mean of determinations for 2 petioles. Lines were fitted by linear regression using...

Ngày tải lên: 08/08/2014, 19:21

... viewpoint. The value of γ and the percentage of offspring coming from a link sire are presented in Table V. These levels of connectedness concern the direct effects: only the sires can have offspring in ... structure 383 In the 2 link sires design, 2 males per flock contributed to connectedness by between-flock mating, the other mating being within flocks. In the 1 link sire design...

Ngày tải lên: 09/08/2014, 18:21

... of rabbit polyclonal antibodies and immunoblotting Polyclonal antibodies to War1p were raised in rabbits against a GST-War1p fusion protein containing 294 amino acids of the C-terminal part of ... data indicate the involvement of Pdr12p in the export of by-products of amino-acid catabolism, as a pdr12D strain displays hypersensitivity to fusel acids derived from leucine, isole...

Ngày tải lên: 19/02/2014, 00:20

... determining survival. The depth of invasion of the primary tumor is the most importa nt factor for predicting nodal involve- ment. When the depth of invasion is between 1 and 2 mm, the incidence of ... virus infections, clinicians are treating increasing numbers of younger women, which presents unique challenges in managing this cancer [1-3]. Carcinoma of the vulva may arise fro...

Ngày tải lên: 09/08/2014, 03:22

... artificial selection on rates of inbreeding in populations of Drosophila melanogaster. II. Effect of previous selection on rates of inbreeding. Aust. J. Biol. Sci., 22, 157-169. McBRIDE ... Drosophila melanogaster. Summary Evolution of effective population size in artificially selected lines of Drosophila melanogaster The evolution of effec...

Ngày tải lên: 09/08/2014, 22:22

... significance of a temperature induced diapause in a cosmopolitan parasitoïd of Drosophila. Ecol. Entomol., 7, 239-247. CARTON J., D AVID J., 1983. Reduction of fitness in Drosophila ... show that the host genotype determines the relative success of infestation by a given strain of parasite. Since both Drosophila and Leptopilina are cosmo...

Ngày tải lên: 09/08/2014, 22:23