'Inbreeding' presentation slideshows

Other Mechanisms of Isolation

Other Mechanisms of Isolation. Changes in Chromosome Number Polyploidization can create barriers to gene flow that are not geographic Very important mechanism of isolation in plants 43-70% of extant plant species may have arisen by polyploidization

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Managed Breeding for Conservation: Sustainability of Ex Situ Populations

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breed conservation - secure

breed conservation - secure. D. PHILLIP SPONENBERG, DVM, PHD VIRGINIA-MARYLAND REGIONAL COLLEGE OF VETERINARY MEDICINE VIRGINIA TECH, BLACKSBURG, VA AND - THE AMERICAN LIVESTOCK BREEDS CONSERVANCY. secure.

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Chapter 11 Inbreeding

Chapter 11 Inbreeding. When the parents of an individual share one or more common ancestors, the individual is inbred. Inbreeding is unavoidable in small populations as all individuals become related by descent over time. The consequence of matings between relatives is

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Breeding Jersey cattle for Africa in the era of genomics

Breeding Jersey cattle for Africa in the era of genomics. Prof Norman Maiwashe 1,2 (PhD, Pri. Sci. Nat). 1 ARC-Animal Production Institute Private Bag X2 Irene 0062. 2 University of the Free State P.O . Box 339 Bloemfontein 9300.

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Angiosperm Reproduction

Angiosperm Reproduction. Chapter 19. Vascular tissue. Earth Forms. Prokaryotic Cells. Eukaryotic Cells. Multicellular Plants. Flowers. 5,000 mya. 4,000 mya. 3,000 mya. 2,000 mya. 1,000 mya. Seeds. Major Evolutionary Advances. Life - 3,800 mya

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Population genetics Halliburton Chapter 8

BI3010H07. Population genetics Halliburton Chapter 8. Inbreeding 1. Panmixa is an important prerequisite for the Hardy-Weinbergs law. What would be the result if it does not hold? There are many examples of non-random mating in nature: selfing in plants, mate choise

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Inbreeding if population is finite, and mating is random, there

Inbreeding if population is finite, and mating is random, there is some probability of mating with a relative effects of small population size, mating with related individuals are similar drift, inbreeding, population subdivision all

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Mating Programs Including Genomic Relationships and Dominance Effects

Mating Programs Including Genomic Relationships and Dominance Effects. Chuanyu Sun ( NAAB ) Paul VanRaden (AIPL). Introduction.

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Migration

Announcements. Migration. Gene flow between populations Effects Receiving population: Change in allele and genotype frequencies (away from H-W) Between populations: homogenization Prevents evolutionary divergence due to selection Migration-selection balance analogous to mutation-selection.

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Effects of Allele Frequency Estimation on Genomic Predictions and Inbreeding Coefficients

Effects of Allele Frequency Estimation on Genomic Predictions and Inbreeding Coefficients. Experimental Design. Predict April 2008 PTA from August 2003 PTA 3,576 older Holstein bulls 1,759 younger bulls (total = 5,335 ) Using 38,416 SNP from Illumina Bovine SNP50 TM Chip. Goals.

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GENETIC ENGINEERING

GENETIC ENGINEERING. Chapter 15. SELECTIVE BREEDING :. Humans take advantage of naturally occurring genetic variation to pass desirable traits on to the next generation 2 methods : Hybridization & Inbreeding. HYBRIDIZATION:

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CHAPTER 13 NOTES

CHAPTER 13 NOTES. Selective breeding - only those animals with desired characteristics reproduce. Humans use it to take advantage of natural genetic variation in plants, animals, etc. Breeders can increase genetic variation (differences) by inducing (causing) mutations.

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Extreme Inbreeding at Beltsville 1912-1949

Extreme Inbreeding at Beltsville 1912-1949. Experimental Design. 8 consecutive generations of mating sires to their daughters, and dams to their sons Highest inbreeding coefficients ever obtained in cattle (maximum F = 75.1%)

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Adjustment of breeding values for past and future inbreeding

Adjustment of breeding values for past and future inbreeding. Paul VanRaden *, Lori Smith Animal Improvement Programs Laboratory Agricultural Research Service, USDA Beltsville, Maryland. Selection and Mating. Selection Rank animals from best to worst Decide which animals reproduce

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PEDRIGREE AND GENETIC ANALISYS OF THE ISTRIAN CATTLE

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Genetics

Genetics. The rate of evolutionary change in a population is proportional to the amount of genetic diversity available. Genetic variation has three levels:. heterozygosity - genetic variation within individuals variation among individuals within a population variation among populations.

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Tinkering with Inheritance

Tinkering with Inheritance. By Kevin Ocsena and Celine Matos . Selective Breeding. Breeding two of the same species to get the best traits of each organism. A selectively bred cow can be useful for more milk production, more meat/leather, or breed more calves.

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Genetics IN BRIEF

Genetics IN BRIEF. Assume: large population, random mating Let: proportion of allele A = p proportion of allele a = q p + q = 1. Aa x Aa. p 2 + 2pq + q 2. Hardy-Weinberg equilibrium p 2 + 2pq + q 2.

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Study Guide- Gene Technology

Study Guide- Gene Technology 1.a. Inbreeding : Breeding of an organism with the same characteristics. Causes genetic disorders. b. Hybridization : Crossing dissimilar organisms to get different characteristics from both species.

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