'Assortative mating' diaporamas de présentation

Chapter 23 The Evolution of Populations

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Nile Perch from Lake Victoria

Nile Perch from Lake Victoria. Genetic Diversity. Fitness. evolutionary fitness is a measure of the number of offspring an individual produces. Loss of Fitness. Another important aspect of polymorphism is that it tends to maintain fitness -

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Simulating and Modeling Extended Twin Family Data

Simulating and Modeling Extended Twin Family Data. Matthew C. Keller Sarah E. Medland Hermine Maes (also, Lindon Eaves, Mike Neale, Pete Hatemi, Laramie Duncan). Outline. Motivation for using extended pedigrees - Briefly introduce the NTFD, Stealth, & Cascade models

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Simulating and Modeling Genetically Informative Data

Simulating and Modeling Genetically Informative Data. Matthew C. Keller Sarah E. Medland. Outline. The usefulness of simulation in behavioral genetics Using GeneEvolve to simulate genetically informative data Practical simulating different designs Classical Twin Design (CTD)

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Dominance, mating and crossbreeding

Dominance, mating and crossbreeding. Chapter 10. Mating. Mating is pairing selected sires and dams = comes after selection Mating determines how selected alleles combine within individuals Benefit from non-additive genetic effects. Mating strategies. Mating within populations

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Weak forces in Evolution

Weak forces in Evolution. Dan Graur. Changes in allele frequencies are important . Changes in genotype frequencies are not so important . 1. 2. Mating. Deviation from randomness: By genetic similarity: Assortative mating Disassortative mating By genetic relatedness: Inbreeding

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The plant of the day

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Evolution is: Change in allele frequencies across generations.

Evolution is: Change in allele frequencies across generations. Form of a gene proportions. FREQUENCIES ALWAYS SUM TO 1. Frequency of students who prefer Foss. Frequency of students who prefer the new Bobs. Frequency of students who prefer Dana.

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Course: Advanced Animal Breeding

Course: Advanced Animal Breeding. MS program in Animal Production Faculty of Graduate Studies An-najah National University Instructor: Dr. Jihad Abdallah Topic 8: Mating Systems. Outbreeding Systems.

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Modeling Interaction Between Family Members

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CMGPD-LN Substantive Lecture

CMGPD-LN Substantive Lecture. Day 6 Marriage and Reproduction. Marriage and Reproduction in Comparison. East/West differences in marriage and reproduction East, including China: Early, universal marriage for women In China, later and non-universal marriage for men

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Vulnerability to Extinction

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Cultural transmission of tool use in bottlenose dolphins

Cultural transmission of tool use in bottlenose dolphins. Krutzen et al. Anthony Jensen Joseph Byers Katherine Mahoney. Source of ongoing debate Consensus towards continuity A behavioral trait is considered to vary culturally if Acquired through social learning

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MECHANISMS FOR EVOLUTION

MECHANISMS FOR EVOLUTION. Honors Biology. REVIEW. Evidence for Evolution and Examples What is Natural Selection? How did Darwin develop theory of Natural Selection?. PATTERNS OF EVOLUTION. Coevolution: 2 or more species evolve in association with one another

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Bio 178 Lecture 31

Bio 178 Lecture 31. Mutation and Evolution of Populations. ? J. Elson-Riggins. Reading. Chapters 20 (P 410-411) & 21. ?. Quiz Material. Questions on P 432 & 452 Chapters 20 & 21 Quizzes on Text Website (www.mhhe.com/raven7). Mutation. Mutation.

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Variety of mating systems

Variety of mating systems. Panmixia Assortative mating Disassortative mating Outcrossing Inbreeding Mixed mating. Disassortative mating. What is the equilibrium frequency of alleles S1, S2, S3, and S4? What is the fate of a new mutation that produces allele S5?. Inbreeding.

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Speciation is especially likely in small isolated populations.

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Non-random mating can change population genetic structure

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