Báo cáo sinh học: "Species versus gene selection" docx

... by providing more variability and genetic drift there by increasing genetic isolation. Another outcome, is the increased genetic load (genetic deaths), especially in species ... of phenotypic evolution. Genet. Sel. Evol. 18, 351-358 Tsakas S.C. & David J.R. (1987) Population genetics and the Cretaceous extinction. Genet. Sel. Evol. 19, 487-496...

Ngày tải lên: 14/08/2014, 19:23

... number of generations until fixation of a mutant gene in a finite population, Genetics 61 (1969) 763–771. [21] Kimura M., Maruyama T., Crow J.F., The mutation load in small populations, Genetics ... it increases genetic variability and short-term viability withoutimpairing the overall persistence times. familial selection / deleterious mutation / genetic load / extinction / genetic variation...

Ngày tải lên: 14/08/2014, 13:22

... second, 3–4 years later. Genetic variability was assessed using genealogical and molecular data (29 microsatellite markers). The expected loss of genetic variability on the PrP gene was confirmed. Moreover, ... coancestry coefficient: basis for a short-term genetic dist ance, Genetics 105 (1983) 767–779. [24] Rousset F., Raymond M., GENEPOP: populations genetics software for exact test and eu...

Ngày tải lên: 14/08/2014, 13:21

... sets with 3 to 99 genes, where several gene sets show excellent prediction performance with MCER = 0%. Among those gene sets with MCER = 0%, the small- est gene set has 22 genes that are available ... approaches: (1) 96 genes selected by ANN-classifiers [12], and (2) 43 genes selected by a shrunken centroid method [14]. Among these three sets of genes, we found the following three genes...

Ngày tải lên: 22/06/2014, 19:20

... call the mutant strain generated in Freiburg ‘X-Freiburg’ and the one generated in New York ‘X-NY’. Animals of the X-Freiburg strain suffered from hydrocephalus, partial agenesis of the corpus ... analysis of gene expression in different tissues of knockout animals by microarray profiling also indicates that a significant pro- portion of changes are found in the proximity of the targeted g...

Ngày tải lên: 06/08/2014, 18:21

... genetic parameters. The purpose is to clarify the situation for maternal genetic response. Sampling variances and correlations Three different levels of uncertainty in genetic ... French beef cattle breeding scheme. II. Prediction of asymptotic genetic gain in a heterogeneous population. Genet Sel Evol 27, 171-188 effects within a 20-year period an...

Ngày tải lên: 09/08/2014, 18:21

... 10%. Generation intervals and selection differentials Whatever the structure of the nucleus, optimal generation intervals are similar (table VII). Optimal values of generation ... in the 2-tier nucleus (15.6% of genetic standard deviation) than in the one-tier one (16.9% of genetic standard deviation). However genetic gain cannot be calculated as .....

Ngày tải lên: 09/08/2014, 18:21

... progeny testing of males not carrying strong alleles at the a sl -casein locus. goat / genetic polymorphism / a sl -casein / milk production

Ngày tải lên: 09/08/2014, 18:22

... 3-best-reciprocal BLASTP hits (BRH3). In the last case, a gene may have up to 3 hits. Generally, a gene node may have up to (g - 1) * n homology relations to other genes, where g is the number of species and ... also take gene duplication and gene loss events into account. The existence of gene families complicates homolog assignment based on protein sequence similarity. The genomic...

Ngày tải lên: 12/08/2014, 17:20

... association studies, has a long history of important contributions to genet- ics, including disease -gene finding and some of the first genetic maps for humans. Recen t contributions include fine-scale ... 17(3):269-280. 14. Elston R, Stewart J: A general model for the analysis of pedigree data. Human Heredity 1971, 21:523-542. 15. Lander E, Green P: Construction of Multilocus Genetic Linkag...

Ngày tải lên: 12/08/2014, 17:20