Báo cáo sinh học: "Phenotypic plasticity of body pigmentation in Drosophila: Autosomal recessive myotonia in sheep" potx

... correlations from isofemale lines data? b) To what extent are different genes involved in determining the extension of black pigment in different body segments? c) We ... that of abdominal segment 5 in more cases than with that of abdominal segment 7. In previous work [9, 13] it was argued that different shapes of reaction norms in...

Ngày tải lên: 09/08/2014, 18:22

... smaller number of starts than horses remaining alive throughout this year. To assess the influence of the level of earnings regardless of the influence of the number of starts, an ... of jumping, involving a long training period. He also needs to preserve his physical strength. IMPLICATION From a genetic improvement point of view, the l...

Ngày tải lên: 14/08/2014, 15:21

... sire contribute equally (with the exception of sex-linked genes in the heterogametic offspring sex) to the genotype of their offspring, it is accepted that progeny performance ... probability of finding significant cytoplasmic effects was assessed by use of likelihood ratio tests of model 7 versus model 3, assuming that -2 2 times the differ...

Ngày tải lên: 14/08/2014, 15:21

... M6rat P (1991) Evidence of a genetic control of diet- induced thermogenesis in poultry. In : Proceedings of the 12 th Symposium of Energy Metabolism of Farm Animals, EAAP ... the line x treatment interaction was significant, especially for residual food intake, water intake, 48-week body weight and adult body weight variation, indicatin...

Ngày tải lên: 14/08/2014, 15:21

... paternal grandoffspring of one of the rams, and maternal grandoffspring of the other. No affected lambs were produced from any mating that did not have at least one of these ... the gene being introduced by the two rams and not existing in the flock before their use. The only instances of affected lambs in this flock followed mating...

Ngày tải lên: 14/08/2014, 15:21

... ratio of the estimates of inbreeding depression to dominance standard deviation. In absolute terms, the av- erage ratio of estimates of inbreeding depression per 1% of inbreeding ... ’dominance content’ in the data was small and the sampling variance of the dominance estimates was high. Second, inbreeding was calculated without considering...

Ngày tải lên: 14/08/2014, 15:21

... numbers of mating pairs contributing to a breeding site. The main steps of our reasoning for disentangling the effects of drift and selection are summarized in figure ... the wing length of D buzzatii was significantly negatively correlated with the density of D simulans in 108 h control fruits, the relative intensities of intra- and...

Ngày tải lên: 14/08/2014, 15:21

... generations of offspring of boar !1!, as well as on the parents of boar (2!. The abnormality was then diagnosed again in karyotypes of two other boars of the same ... time) and of the inversion (normal or inverted chromosome 4). The reproductive performance of boars was also analysed using a linear model including the following fixed...

Ngày tải lên: 14/08/2014, 15:21

... including the cultivation of cells in folate-deficient medium (Glover, 1981; Sutherland and Hecht, 1985). Manifestation of Fra Xq in cattle, as observed in this preliminary ... or infertile depending upon the type of chromosome defect sustained. The adverse effect of a chromosome defect is expressed in monotocous animals as an increased i...

Ngày tải lên: 14/08/2014, 15:21

... basis for the testing of hypotheses concerning the inheritance of horse color. These studies also tended to use the principles of homology in assigning loci and alleles ... Note Dominant black in horses DP Sponenberg MC Weise Department of Biosciences and Pathobiology, Virginia-Maryland Regional College of Veterinary Medicine, Virginia Tech, Bla...

Ngày tải lên: 14/08/2014, 15:21