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Ernest Bailey
Horse Genetics
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Genetic Relationships Among Breeds
Summary
References
Website
Страница 14
Evolution and Migration of Early Equids Earliest ancestor of horses
Climate, environment and evolution
Domestication of horses
Relationship of modern domestic horses to the Przewalski horse and other wild horse populations
Archeological evidence for domestication of horses
Ancient DNA
Which horse species was first domesticated?
Other sites of domestication
Genomic Data on Horse Evolution and Domestication
Domestication and selection for coat color
Summary
References
Страница 27
Classification and Differences Among the Equidae Species classification and population standings
Chromosomal differences among the Equidae species
Endangered species
Genomic differences among the species of Equidae
Horses
Asses
Asiatic Wild Asses
Zebras
Species Hybrids
Rare fertility in mules and hinnies
Feral Species
Summary
References
Страница 41
What Are Genes?
DNA
DNA structure
DNA replication
The central dogma of genetics (DNA ≥ RNA ≥ protein)
Genetic code
Identification of
g
enetic
v
ariation at the DNA
l
evel for
h
orses
Mutations and variants affecting proteins
Effect of amino acid substitutions
Mutation versus variant
Other roles of DNA: introns and exons, and regulatory DNA sequences
Examples of DNA changes affecting genes
Nucleotide substitution changing an amino acid
Deletion/loss of DNA resulting in loss of the codon reading frame
Changes in gene expression (alternate splicing)
Chromosome inversions
Changes affecting gene expression
Where Are Genes Found? Genes in the nucleus
Genes in mitochondria
Behavior of Chromosomes
Mitosis
Linkage
The inheritance of gender
References
Страница 65
Genes and alleles
Genotypes: Homozygous and Heterozygous
Dominant and recessive; phenotype and genotype
Breeding heterozygous and homozygous horses
Schematic representation of pedigrees
Practices for the Naming of Genes
Mendelian Ratios Nomenclature for ambiguous genotypes
Altered ratios for lethal alleles
Partial dominance among alleles
Co-dominance among alleles
Expected ratios, statistical tests and alternative models
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