A Common Polygenic Basis for Quinine and
... Inbred strains of mice (Mus musculus) differ greatly in ability to taste various bitter compounds. For some compounds, the differences result from allelic variation at a single locus. However, segregation patterns incompatible with monogenic inheritance have been found for quinine avoidance. The Soa ...
... Inbred strains of mice (Mus musculus) differ greatly in ability to taste various bitter compounds. For some compounds, the differences result from allelic variation at a single locus. However, segregation patterns incompatible with monogenic inheritance have been found for quinine avoidance. The Soa ...
11.1 notes
... the offspring held. A trait is a specific characteristic (seed color, plant height, etc.) of an individual. ...
... the offspring held. A trait is a specific characteristic (seed color, plant height, etc.) of an individual. ...
Population-Based Resequencing Reveals That the Flowering Time
... Gene resequencing and association analysis present new opportunities to study the evolution of adaptive traits in crop plants. Here we apply these tools to an extensive set of barley accessions to identify a component of the molecular basis of the flowering time adaptation, a trait critical to plant ...
... Gene resequencing and association analysis present new opportunities to study the evolution of adaptive traits in crop plants. Here we apply these tools to an extensive set of barley accessions to identify a component of the molecular basis of the flowering time adaptation, a trait critical to plant ...
The role of meiotic drive in hybrid male sterility
... between two populations has mostly or completely stopped. Gene exchange may be prevented by extrinsic factors, such as geographical isolation, but such extrinsic factors may say little or nothing about the genetic divergence that allows species to coexist without losing their identity. Instead, most ...
... between two populations has mostly or completely stopped. Gene exchange may be prevented by extrinsic factors, such as geographical isolation, but such extrinsic factors may say little or nothing about the genetic divergence that allows species to coexist without losing their identity. Instead, most ...
NEOPOLYPLOIDY IN FLOWERING PLANTS
... Autopolyploids possess only homologous chromosomes, while allotetraploids possess two or more sets of homeologous chromosomes. This has led to the prediction that meiosis and inheritance should differ between the two types of polyploids (Müntzing 1932, 1936; Winge 1932; Darlington 1937; Stebbins 19 ...
... Autopolyploids possess only homologous chromosomes, while allotetraploids possess two or more sets of homeologous chromosomes. This has led to the prediction that meiosis and inheritance should differ between the two types of polyploids (Müntzing 1932, 1936; Winge 1932; Darlington 1937; Stebbins 19 ...
IVRI OB 1809
... The second experiment (although earlier in date) is the proof by Mendel that the genotype is composed of indivisible parts. Mendel "crossed members of two pure lines of peas (Pisum sativum) which differed in one recognisable respect: one was tall, the oth<;r dwarf. The first generation, or F I , pro ...
... The second experiment (although earlier in date) is the proof by Mendel that the genotype is composed of indivisible parts. Mendel "crossed members of two pure lines of peas (Pisum sativum) which differed in one recognisable respect: one was tall, the oth<;r dwarf. The first generation, or F I , pro ...
An introduction to genetic algorithms / Melanie
... Science arises from the very human desire to understand and control the world. Over the course of history, we humans have gradually built up a grand edifice of knowledge that enables us to predict, to varying extents, the weather, the motions of the planets, solar and lunar eclipses, the courses of ...
... Science arises from the very human desire to understand and control the world. Over the course of history, we humans have gradually built up a grand edifice of knowledge that enables us to predict, to varying extents, the weather, the motions of the planets, solar and lunar eclipses, the courses of ...
An introduction to genetic algorithms
... Science arises from the very human desire to understand and control the world. Over the course of history, we humans have gradually built up a grand edifice of knowledge that enables us to predict, to varying extents, the weather, the motions of the planets, solar and lunar eclipses, the courses of ...
... Science arises from the very human desire to understand and control the world. Over the course of history, we humans have gradually built up a grand edifice of knowledge that enables us to predict, to varying extents, the weather, the motions of the planets, solar and lunar eclipses, the courses of ...
Single-gene speciation with pleiotropy: effects of allele dominance
... effects of viability selection and positive frequency-dependent selection due to reproductive ...
... effects of viability selection and positive frequency-dependent selection due to reproductive ...
Title Changes in the Concept of "Fitness" in Evolutionary Biology
... term (in his general statement of natural selection, Darwin did not use the word; Darwin 1859, 80-81), and there was an important difference between his usage and Spencer's one. First, take a look at these two examples: Nor ought we to marvel if all the contrivances in nature be not, as far as we ca ...
... term (in his general statement of natural selection, Darwin did not use the word; Darwin 1859, 80-81), and there was an important difference between his usage and Spencer's one. First, take a look at these two examples: Nor ought we to marvel if all the contrivances in nature be not, as far as we ca ...
LINKAGE AND MAPPING IN EUKARYOTES
... fter Sutton suggested the chromosomal theory of inheritance in 1903, evidence accumulated that genes were located on chromosomes. For example, Morgan showed by an analysis of inheritance patterns that the white-eye locus in Drosophila is located on the X chromosome. Given that any organism has many ...
... fter Sutton suggested the chromosomal theory of inheritance in 1903, evidence accumulated that genes were located on chromosomes. For example, Morgan showed by an analysis of inheritance patterns that the white-eye locus in Drosophila is located on the X chromosome. Given that any organism has many ...
EPHX1 polymorphisms, COPD and asthma in 47,000 individuals and in meta-analysis
... to chronic obstructive pulmonary disease (COPD) and asthma. We genotyped participants from the Copenhagen City Heart Study (n510,038) and the Copenhagen General Population Study (n537,022) for the T113C and A139G variants in the EPHX1 gene and measured lung function and recorded COPD hospitalisation ...
... to chronic obstructive pulmonary disease (COPD) and asthma. We genotyped participants from the Copenhagen City Heart Study (n510,038) and the Copenhagen General Population Study (n537,022) for the T113C and A139G variants in the EPHX1 gene and measured lung function and recorded COPD hospitalisation ...
Pristionchus pacificus
... A genomic initiative in P. pacificus was launched in 2001. An integrated genome map of P. pacificus contains a genetic linkage map of more than 500 molecular markers and a physical map of nearly 10.000 fingerprinted BAC clones (Srinivasan et al., 2002, Srinivasan et al., 2003). A whole-genome sequen ...
... A genomic initiative in P. pacificus was launched in 2001. An integrated genome map of P. pacificus contains a genetic linkage map of more than 500 molecular markers and a physical map of nearly 10.000 fingerprinted BAC clones (Srinivasan et al., 2002, Srinivasan et al., 2003). A whole-genome sequen ...
Evolutionary consequences of Wolbachia infections
... the nucleus. Finally, we turn to consider higher-level Wolbachia effects, ranging from sex role-reversal to birth, and death, of new host species. The unpublished results we discuss were presented at the Second International Wolbachia Conference (Crete, Greece, 9 –15 July, 2002) Wolbachia –host conf ...
... the nucleus. Finally, we turn to consider higher-level Wolbachia effects, ranging from sex role-reversal to birth, and death, of new host species. The unpublished results we discuss were presented at the Second International Wolbachia Conference (Crete, Greece, 9 –15 July, 2002) Wolbachia –host conf ...
Familial idiopathic methemoglobinemia revisited: original
... open-angle glaucoma (POAG).3,4,6,7 Genes with products that are involved in the regulation of blood flow to ocular tissues may be considered plausible candidates for studies on genetic variability as a contributory factor in the development of glaucoma. Nitric oxide (NO) maintains the basal vasodila ...
... open-angle glaucoma (POAG).3,4,6,7 Genes with products that are involved in the regulation of blood flow to ocular tissues may be considered plausible candidates for studies on genetic variability as a contributory factor in the development of glaucoma. Nitric oxide (NO) maintains the basal vasodila ...
Genomic analysis of clinical samples with serologic ABO blood
... was defined5 and the polymorphisms of the common alleles at this blood group locus established.6 However, for many of the variant phenotypes of the ABO system our knowledge of the molecular basis for altered antigen expression is sparse. In 1993, molecular alterations at the ABO locus in individuals ...
... was defined5 and the polymorphisms of the common alleles at this blood group locus established.6 However, for many of the variant phenotypes of the ABO system our knowledge of the molecular basis for altered antigen expression is sparse. In 1993, molecular alterations at the ABO locus in individuals ...
3. Inheritance and hereditary
... What determines whether a phenotype is treated as discrete or continuous? The distinction depends on how the variation in a particular trait can be represented accurately, yet as simply as possible. At one extreme, a trait whose variation is difficult to assign a numerical value (for example, wrinkl ...
... What determines whether a phenotype is treated as discrete or continuous? The distinction depends on how the variation in a particular trait can be represented accurately, yet as simply as possible. At one extreme, a trait whose variation is difficult to assign a numerical value (for example, wrinkl ...
TIB_34 - Stored Product Insect and Engineering Research
... The question of whether parents should be selected and tested in the same environment in which their progeny are to perform is a problem which has received considerable attention. The fact that the phenotype of an organism is the product of both its genotype and its environment is widely accepted by ...
... The question of whether parents should be selected and tested in the same environment in which their progeny are to perform is a problem which has received considerable attention. The fact that the phenotype of an organism is the product of both its genotype and its environment is widely accepted by ...
paramecium tetraurelia
... (2) : the F, generation is obtained directly from heterozygous F, clones by autogamy which yields homozygous F, clones. The parental strains were routinely marked by the recessive heat sensitive mutations ts111 or is401 in order to distinguish pairs that had undergone reciprocal fertilization from t ...
... (2) : the F, generation is obtained directly from heterozygous F, clones by autogamy which yields homozygous F, clones. The parental strains were routinely marked by the recessive heat sensitive mutations ts111 or is401 in order to distinguish pairs that had undergone reciprocal fertilization from t ...
SNP discovery
... Albert Research Centre, Auckland, New Zealand, 3 IASMA Research and Innovation Centre, Foundation Edmund Mach, San Michele all’Adige, Trento, Italy, 4 Laboratory for Fruit Breeding and Biotechnology, Department of Biosystems, Katholieke Universiteit Leuven, Heverlee, Leuven, Belgium, 5 USDA-ARS, Nat ...
... Albert Research Centre, Auckland, New Zealand, 3 IASMA Research and Innovation Centre, Foundation Edmund Mach, San Michele all’Adige, Trento, Italy, 4 Laboratory for Fruit Breeding and Biotechnology, Department of Biosystems, Katholieke Universiteit Leuven, Heverlee, Leuven, Belgium, 5 USDA-ARS, Nat ...
Inference of natural selection on quantitative traits
... ton 2011b). The time evolution of allele frequencies in a population can be described using stochastic differential equations and the steady state of a population, balancing the forces of selection (increasing the fitness) and random genetic drift (decreasing the fitness), can be determined using me ...
... ton 2011b). The time evolution of allele frequencies in a population can be described using stochastic differential equations and the steady state of a population, balancing the forces of selection (increasing the fitness) and random genetic drift (decreasing the fitness), can be determined using me ...
QuantGen posted
... • The degree to which offspring resemble their parents is determined by the narrow-sense heritability h2 • The efficacy of natural and artificial selection is also determined by h2 ...
... • The degree to which offspring resemble their parents is determined by the narrow-sense heritability h2 • The efficacy of natural and artificial selection is also determined by h2 ...
Age-related macular degeneration: a perspective on genetic studies
... Klaver et al10 showed that the odds ratios for siblings and offsprings of AMD patients were higher compared to siblings of controls. Several independent groups have examined studies comparing concordance rates in monozygotic vs dizygotic twins.11,12 These two larger studies showed that there is a su ...
... Klaver et al10 showed that the odds ratios for siblings and offsprings of AMD patients were higher compared to siblings of controls. Several independent groups have examined studies comparing concordance rates in monozygotic vs dizygotic twins.11,12 These two larger studies showed that there is a su ...
Polymorphism (biology)
Polymorphism in biology is said to occur when two or more clearly different phenotypes exist in the same population of a species—in other words, the occurrence of more than one form or morph. In order to be classified as such, morphs must occupy the same habitat at the same time and belong to a panmictic population (one with random mating).Polymorphism as described here involves morphs of the phenotype. The term is also used somewhat differently by molecular biologists to describe certain point mutations in the genotype, such as SNPs (see also RFLPs). This usage is not discussed in this article.Polymorphism is common in nature; it is related to biodiversity, genetic variation and adaptation; it usually functions to retain variety of form in a population living in a varied environment. The most common example is sexual dimorphism, which occurs in many organisms. Other examples are mimetic forms of butterflies (see mimicry), and human hemoglobin and blood types.According to the theory of evolution, polymorphism results from evolutionary processes, as does any aspect of a species. It is heritable and is modified by natural selection. In polyphenism, an individual's genetic make-up allows for different morphs, and the switch mechanism that determines which morph is shown is environmental. In genetic polymorphism, the genetic make-up determines the morph. Ants exhibit both types in a single population.Polymorphism also refers to the occurrence of structurally and functionally more than two different types of individuals, called zooids within the same organism. It is a characteristic feature of Cnidarians.For example, in Obelia there are feeding individuals, the gastrozooids; the individuals capable of asexual reproduction only, the gonozooids, blastostyles and free-living or sexually reproducing individuals, the medusae.