water quality and ecosystem health in tropical streams
white - forest genetics (cabi, 2007)
... Genotype and Allele Frequencies Hardy-Weinberg Principle Mating Systems and Inbreeding Influence of Inbreeding on Genotypic Frequencies Inbreeding Coefficient and Regular Systems of Inbreeding Inbreeding ... stabilizing soil to reduce erosion, increasing water quality, providing windbreaks, reclaiming abandoned industrial sites and sequestering carbon to slow global warming All of these advantages taken ... by brainstorming ideas, reviewing chapters, sending photos, providing examples of their work, helping with layout, editing chapter drafts, counseling us and more We sincerely thank each and every...
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Báo cáo khoa học: "Intra- and interpopulational genetic variation in juvenile populations of Quercus robur L and Quercus petraea Lieb" pot
... the succeeding life stages The genetic multiplicity was very large in all samples investigated including single-population samples This finding concurs with results of a recent study in 32 European ... the origin of the studied samples, see Müller-Starck and Ziehe (1991) Genotyping proceed Genetic control and inheritance of isoenzymes verified beforehand by utilizing full-sib families and their ... above average The samples which originated from seed collections in single populations (no and 5, and 8, and 10) tended to be more differentiated than the remaining samples which descend from population...
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báo cáo khoa học: "The analysis of quantitative variation in natural populations with isofemale strains" pptx
... among strains expanded to an infinite size To examine the distribution of genetic variance within and between isofemale we first consider the case where strains are expanded to an infinite size ... examples are graphed in figure « = = C Isofemale strains maintained at a finite population size increase divergence among isofemale strains if they are maintained sizes or kept in the laboratory ... horizontal surface Wing length was taken from the intersection of the anterior cross vein and longitudinal vein (L3) to the intersection of L3 with the distal wing margin Wing width was taken...
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báo cáo khoa học: "Allozyme variation in natural populations of Lymantria dispar (Lepidoptera)" docx
... ; and aspartate aminotransferases (AAT) staining was modified from Mc K et al (1975) After staining, the gels were washed in distilled water, fixed in p 100 acetic acid solution for 48 hours and ... frequency in all populations but those of o8 Morocco ; Lap-2 is rare in all populations except China ; Lap-3 is common in 1o3 100 France and Canada but rare in Morocco and absent in China Finally, ... genetic cline in Spain For other characters, G (1934) OLDSCHMIDT has shown clinal variation in the Japanese Islands On the other hand, there may be species, in which case a genetic cline would...
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Báo cáo lâm nghiệp: "Variation of morphological traits in natural populations of maritime pine (Pinus pinaster Ait.) in Morocco" pot
... al Table I Location and geographic characteristics of nine native populations of Pinus pinaster Ait in Morocco Tmax and Tmin stand for mean maximum temperature and mean minimum temperature, NA: ... population of TAD In contrast, seeds and cones were largest in the high Rif and smaller in the low lands Precipitation in the high-altitude Rif is two-fold the precipitation in the lowlands In fact, populations ... variation in cone and needle characters of Pinus banksiana, Can J Bot 71 (1993) 43–51 [34] Matziris D., Variation in growth and quality characters in Pinus pinaster provenance grown at seven sites in...
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báo cáo khoa học: " Variation at four enzyme loci in natural populations Drosophila melanogaster : factor analyses of genotypic and gametic associations Angeles ALONSO-MORAGA" pdf
... objective of measuring the factors implicit in the physical variables obtained from each individual In our case the individuals are the populations, and the variables are the genotypic and gametic frequencies ... chromosome, 38.8 cM) and aldehyde oxidase (Aldox locus, 3rd chromosome, 56.6 cM) The procedures for electrophoresis and staining are described by O’B & MCIN!RE (1969), I!ICKINSON (1970) and P (1957) ... projection on the second axis In the a-Gpdhl- analysis (fig 3) the positive direction of the first axis contains points overall than the negative one, and all the points involving a-Gpdh For s z lAdh...
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Báo cáo sinh học: " Phenotypic and genetic variability of morphometrical traits in natural populations of Drosophila melanogaster and D simulans. I. Geographic variations" docx
... from n initial lines, n/2 new lines were produced and 10 individuals per line were measured In some cases, the new lines were generated and studied after the initial lines had been kept in the ... temperate regions including northern USA, Canada, France and ex-USSR; populations of tropical regions including the West Indies, the Society Islands and Hawaii ; and populations in tropical Africa, ... smaller and invest less into each offspring while Far Eastern populations develop more slowly, are larger and invest more energy into each individual (Taylor and Condra, 1980 and references therein)...
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Báo cáo sinh học: " Phenotypic and genetic variability of morphometrical traits in natural populations of Drosophila melanogaster and D simulans. II. Within-population variability" pptx
... heritability according to Parsons (1983) and Hoffmann and Parsons (1988) Means and standard deviations of intraclass correlations are given in table IV In both species, the observed and theoretical ... France, USSR, North Africa, Tropical Africa, Islands of Indian Ocean close to the African continent, South Africa, North America, West Indies and Mexico, Far East and Australia Geographical groups ... simulans: France, North Africa, Tropical Africa, South Africa, French West Indies, Mexico and USA, Islands of Indian Ocean close to the African continent = = On the whole, we find that D melanogaster...
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Báo cáo sinh học: "Estimation of relatedness in natural populations using highly polymorphic genetic" docx
... heterozygous and that in a fingerprint there are no allelic bands For instance, several allelic bands were found in the fingerprint analysis of human families (Jeffreys et al, 1985) in dogs and cats ... more and more difficult to estimate the true kinship between individuals Indeed, the distributions of parent/offspring, uncle/nephew, grandparent/grandchildren, cousins, and double- cousins must ... inbreeding by DNA fingerprinting: development of a calibration curve using defined strains of chickens Genetics 125, 161-165 success Lewin R (1989) Limits to DNA fingerprinting Science 243, 1549-1551...
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ANALYSIS OF GENETIC VARIATION IN ANIMALS pdf
... analysis is done by individual genetic profiling (genetic fingerprinting), determining the interrelations between different individuals and evaluating their allele frequency in populations Microsatellite ... with inbreeding coefficients in both populations and interpopulations 30 Analysis of Genetic Variation in Animals The inbreeding coefficient of the whole population (FIT = Factor of Inbreeding in ... be divided into: i) inbreeding coefficient of individuals in relation to a subpopulation which includes individuals (FIS = Factor of Inbreeding relative to subpopulation); ii) inbreeding coefficient...
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Báo cáo lâm nghiệp: "Enzymatic polymorphism in natural populations of the sawfly Diprion pini L (Hymenoptera: Diprionidae) L Beaudoin" ppsx
... defoliated each year and the annual cost due to the reduced tree growth alone would represent about 300 millions FF in the European Community In France D pini is bivoltine in lowland plains, whereas ... fact that in France outbreaks start in the plains and that most damage occurs in autumn (Géri, 1988) On the other hand, D pini life cycle is controlled by a complex phenomenon of diapause Indeed, ... determination (Maxwell, 1956) and as the offspring of D pini live grouped in colonies during larval devel- opment, the data analysed are the parental genotypes obtained from their offsprings A...
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Báo cáo khoa học: "Gene diversity in natural populations of oak species" doc
... overlapping and 3) natural hybridization was indicated in the literature in all pairwise combinations In defining a complex, we added an additional constraint - that the gene frequencies be obtained ... variation in cpDNA (Wagner et al, 1987 in Pinus banksiana and Pinus contorta; Neale et al, 1988 in Hordeum; Soltis et al, 1989 in Tolmiea menziesii ; see Harris and Ingram, 1991, for a review) Combined ... Combined inter- and intraspecific assessments of cpDNA polymorphisms in oaks show intriguing features in gene di- versity organization Patterns of intraspecific variation are similar in sympatric...
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Báo cáo khoa học: " Estimation of Fagus sylvatica L mating system parameters in natural populations" pps
... to 1.123 in Issaux and from 0.658 to 1.260 in Aigoual (table II) Heterogeneity over loci was significant within stand in Issaux (isolated trees) and within the Aigoual stands Outcrossing rate ... close to and no intra-stand individual heterogeneity was found using Ritland and El Kassaby’s method (1985) (table II) In spite of a rather high heterogeneity of t within Aigoual stands, the ... stratified into sectors according to a horizontal plane (detection of position influence) and to a vertical plane chosen to detect the prevailing wind influence in the case of isolated trees and of...
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Báo cáo khoa học: "Genetic variation in European larch (Larix decidua Mill)" potx
... unreliably stained and could not be considered The more cathodal zone exhibits bands differing in mobility and staining intensity In addition, a null allele was observed Thus, this zone was interpreted ... for L laricina (Cheliak and Pitel, 1985; Ying and Morgenstern, 1990) and at IDH for L laricina (Cheliak and Pitel, 1985) as well as for L occidentalis (Fins and Seeb, 1986) Lewandowski and Mejnartowicz ... segregation ratios and close analogy to results from other isozyme investigations in larch (Cheliak and Pitel, 1985; Fins and Seeb, 1986; Lewandowski and Mejnartowicz, 1990a, b; Ying and Morgenstern,...
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Báo cáo khoa hoc:" Genetic variation in two conserved local Romanian pig breeds using type 1 DNA markers" pdf
... is the most prevalent in the Landrace (0.72), Pietrain (0.67) and Duroc (0.63) This genotype was absent in Chinese breeds [7] and is relatively low in the Bazna (0.38) and Mangalitsa (0.27) breeds ... prolificacy and was also found in commercial dam lines of Large White origin [32] It is assumed that it is derived from early importation of Chinese pigs into England prior to the 1800s and crossbreeding ... hyperthermia) and also results in increased muscling and less backfat (possibly as a result of close linkage to another gene) 6 16 6 15 Calpastatin (CAST) Estrogen Receptor (ESR) Prolactin Receptor...
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Báo cáo sinh học: "Genetic variability in French populations of the Corsican mouflon (Ovis ammon musimon): analysis of 2 blood proteins and red-cell blood groups" pptx
... (hemoglobin, transferrin and the 19 remaining blood factors, see table IV) yielding 44 variables Figure shows the projections (’envelopes’ joining points of extreme distribution) of each sample in ... genetic variation in French populations (3 captive and wild-living) by blood typing and by electrophoresis of transferrin and hemoglobin The aim of this study was to determine the effects of ... genetic diversity was determined for 20 captive individuals (Jardin des Plantes from Paris and INRA from Jouy-en-Josas) Electrophoresis of transferrin and hemoglobin (Nadler et al, 1971; Bunch...
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Báo cáo sinh học: "On the relevance of three genetic models for the description of genetic variance in small populations undergoing selection" docx
... an infinite number of independent loci, with identical and small effects It will then be called in the following ’infinitesimal model’ or IM The computation of the inbreeding coefficient in this ... mates and inbreeding induced in the offspring and of the changing variance of gene effects due to genetic drift and faster or slower fixation of alleles The need of unknown parameters to introduce ... generations, suggesting that genetic variability is infinite according to the infinitesimal theory In animal breeding also, selection experiments have been based on this theory for a long time and no evidence...
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Population genetic variation in gene expression is associated with phenotypic variation in Saccharomyces cerevisiae pdf
... between strains at synonymous and amino-acid-altering sites and given that about 70% of coding sites are amino-acid altering Thus, 82% of hybridizations should contain no mismatches The remaining probes ... protein response, including protein disulfide isomerase, PDI1 [28], which is required for oxidative protein folding in the endoplasmic reticulum [29] These genes, in addition to functioning in ... Protein folding Stress response Stress response RNA binding Inorganic cation transporter Cell growth and/ or maintenance 35S transcript processing Cell-wall organization and biogenesis Protein folding...
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báo cáo khoa học: "Population crash, population flush and genetic variability in cage populations of Drosophila melanogaster" pot
... significant enough to result in a drastic reconditioning of the gene pool of the new colony resulting in a genetic revolution More or less in the same line of thinking ARSON C (1971) believes ... size remained very low for a few months and, in September 1979, was even low as half a dozen flies ; afterwards, in a few weeks, it increased rapidly in number and became stabilized Concerning the ... the Bonlez strain 40 inseminated females of Drosophila melanogaster were captured in Bonlez (Belgium) in July 1979 ; they were allowed to multiply and their offspring were divided in three groups...
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Báo cáo khoa hoc:" Genetic variation in the myeloperoxidase gene and cognitive impairment in Multiple Sclerosis" pot
... Ratios and CI were estimated using logistic regression adjusted for age and sex gene being involved in AD pathology, possibly through oxidation of Aβ or ApoE, promoting their aggregation into insoluble ... possible role of MPO polymorphism in the development of cognitive decline in MS This study was mainly designed to investigate whether some clinical and individual variables and the occurrence of the ... directly through oxidationinduced damage to associated neurons [9], there is biologic evidence implicating MPO in the cognitive decline in patients with MS, but no definite data are currently...
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