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PDF - Canine Genetics and Epidemiology
PDF - Canine Genetics and Epidemiology

... so inbreeding. Where there is common ancestry the probability that both alleles inherited by an individual are copies of a single allele from a common ancestor to both parents is >0. The coefficient of inbreeding (F) is this probability, and F for an individual will be higher if there are more commo ...
Applied Animal Breeding and Gene
Applied Animal Breeding and Gene

... The amount of variation is measured and expressed as the variance when values are expressed as deviation from the population mean. The variance is usually denoted by σ2 and is defined as the average of the squared deviations from the mean. It is the most useful measure of variation for studying the ...
The Simple Genetic Algorithm Evolutionary Computation BLG602E
The Simple Genetic Algorithm Evolutionary Computation BLG602E

... population of individuals : size N mating pool (parents) : size N offspring formed from parents offspring replace parents offspring are next generation : size N ...
Kangaroo Genetics: Impacts of Harvesting (PDF
Kangaroo Genetics: Impacts of Harvesting (PDF

... 38.2% in 1989 (Jachmann et al. 1995). The cause of this has been attributed to trophy hunting and poaching, both of which target elephants with large tusks. Another example is the phenotypic selection on some fish species by gillnetting, which catches larger fish and has changed the phenotype toward ...
Lecture PPT - Carol Eunmi LEE
Lecture PPT - Carol Eunmi LEE

... If population size is reduced and Drift acts more intensely, we get: 1. At the Allelic level: Random fixation of Alleles (loss of alleles) 2. At the Genotypic level: Inbreeding, Reduction in Heterozygosity (because of fewer alleles) ...
- Wiley Online Library
- Wiley Online Library

... owing to random genetic drift and inbreeding. This loss of diversity may reduce the evolutionary potential to adapt to changing environments, and may cause immediate loss of fitness (cf. inbreeding depression). Together with other population size-dependent stochastic processes, this may lead to incr ...
Tetrasomic inheritance in cultivated potato and implications in
Tetrasomic inheritance in cultivated potato and implications in

... the desirable traits of both parents in the ensuing populations (Mackay, 2005). Mid-parental values may provide good indicators of the likely average value of their progeny and thus serve as a useful means of cross prediction in some instances(Brown and Caligari, 1989).Some breeders choose to cross ...
A View of Life
A View of Life

... – Evolution has occurred.  Accumulation of small changes is referred to as microevolution. ...
Take Home Test 2. Mendelian Genetics: Monohybrid Crosses
Take Home Test 2. Mendelian Genetics: Monohybrid Crosses

... Characters whose alleles behave in the predictable way discovered by Gregor Mendel are said to be inherited in a Mendelian Fashion, or are said to be inherited according to the rules of Mendel. In order to follow the rules Mendel discovered, alleles for the gene must be: • present at only one locus ...
File - Mrs. Brown @ SCHS
File - Mrs. Brown @ SCHS

... that Lisa had muscular dystrophy. Terry married Perry and had two boys, Pike and Tike. It was discovered that Terry and Pike had muscular dystrophy. ...
Competitive speciation
Competitive speciation

... The evolution of phenotypic expansion continues in the same manner until one of three things happens. Case I: Blocking gaps. Adjacent, as yet non-existent phenotypes have their fitness reduced below zero (Fig. 2). In this case the selective pressure for niche and phenotypic expansion ceases, and the ...
Lecture 22 Speciation
Lecture 22 Speciation

... 1. The magnitude of prezygotic and postzygotic isolation both increase with the time. • in Drosophila, it takes about 1.5 to 3 million years for complete isolation to evolve. • in marine bivalves, it may take 4 to 6 million years! 2. Among recently separated groups, prezygotic isolation is generally ...
E. Selection 1. Measuring “fitness” – differential reproductive
E. Selection 1. Measuring “fitness” – differential reproductive

... Sickle cell caused by a SNP of valine for glutamic acid at the 6th position in the beta globin protein in ...
AIM: By what means do reproductive barriers (speciation) arise?
AIM: By what means do reproductive barriers (speciation) arise?

... 1. allopatric speciation: When do you think allopatric speciation is most likely to occur? When the isolated population is SMALL. - genetic drift - natural selection Ex. Galapagos finch species - all arose in less than 2 million years! ...
Mutation, Transposition, and Recombination
Mutation, Transposition, and Recombination

... 4) also show an extremely important feature of recombination, that is, the homogenizing effect of all kinds of recombination, from the most conservative to the most disruptive. For obvious reasons, these recombination-specific dynamics are called Homogenizing dynamics. Note that, in all cases, after ...
The formal Darwinism project: a mid
The formal Darwinism project: a mid

... links between equations of motion on the one hand, and an optimization programme on the other. To capture the whole of Darwin’s argument, these formal links must be made as general as possible, in a number of ways. Genetic architecture is vital to the equations of motion, but secondary to the concep ...
Breeding systems, climate, and the evolution of migration in shorebirds
Breeding systems, climate, and the evolution of migration in shorebirds

... establishment, courtship, pair formation, incubation, and brood care. Conversely pair formation and parental care may leave less time and energy available for migration and other nonbreeding behaviors. Therefore, natural selection favoring migratory behavior may influence breeding system evolution a ...
Levels of inbreeding depression over seven generations of selfing in
Levels of inbreeding depression over seven generations of selfing in

... et al., 2001a,b), as long as inbreeding depression is not substantially ‘purged’ from populations after continued inbreeding, as could occur if inbreeding depression were caused by many recessive deleterious alleles scattered throughout the genome (Charlesworth & Charlesworth, 1987; Lande et al., 19 ...
- Philsci
- Philsci

... definition. For the simplest version of this debate, her definition works perfectly well. The neutral theory, in its simplest form, asserts that most mutations are either neutral or deleterious. Selection will act to weed out most deleterious mutations, so that these will ...
Introduction to Genetic Algorithms
Introduction to Genetic Algorithms

... a set of feasible solutions Introduction to Genetic Algorithms ...
people.biology.ufl.edu
people.biology.ufl.edu

... Baer CF, F Shaw, C Steding, M Baumgartner, A Hawkins, A Houppert, N Mason, M Reed, K Simonelic, W Woodard, and M Lynch. 2005. Comparative evolutionary genetics of spontaneous mutations affecting fitness I n rhabditid nematodes. Proceedings of the National Academy of Sciences 102(16): 5785-5790 Charl ...
GenJam: A Genetic Algorithm for Generating Jazz Solos
GenJam: A Genetic Algorithm for Generating Jazz Solos

... musical domain present some interesting problems. The selection step in the algorithm reflects the evolutionary principle that the fitter individuals in a population tend to survive and mate. Selection in GAs usually involves a random process, biased by the fitness values, so that fitter individuals ...
CRS 7210 QUANTITATIVE GENETIC THEORY
CRS 7210 QUANTITATIVE GENETIC THEORY

... introduction to statistical tools; Causes of genetic variation at single and multilocus; Linkage analysis and chromosome mapping; Components of phenotypic variation; GxE interaction; The concept of heritability; Detecting major genes; Resemblance between relatives; Analysis of line crosses; Expectat ...
The Value of Hierarchical Bayes Models on Genetic Evaluation of
The Value of Hierarchical Bayes Models on Genetic Evaluation of

... genotypes or breed-composition groups in multiple-breed populations. The simplest strategy involves including breed-composition in the definition of the contemporary group (CG) and estimating heterotic effects jointly with the CG effects. However, this method reduces the number of possible direct co ...
GENERAL BREEDING STRATEGY
GENERAL BREEDING STRATEGY

... defects and diseases. Such restrictions are entered into the Dog registry guideline and marked with the mention Breeding restriction. It is recommended that a dog, which is used for breeding, be at least 2 years old and preferably older than this so that the health information available on it and it ...
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Philopatry

Philopatry is the “tendency of an organism to stay in, or return to, its home area”. The causes of philopatry are numerous, but natal philopatry, where animals return to their birthplace to breed, is probably the most common form. The term ""philopatry"" derives from the Greek 'home-loving', although in recent years the term has been applied to more than just the animal's birthplace. Recent usage refers to animals returning to the same area to breed despite not being born there, and migratory species that demonstrate site fidelity: reusing stopovers, staging points, and wintering grounds.
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