The domestic chicken (Gallus gallus domesticus)

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Table of contents

1 Introduction 
1.1 Pigment patterning in birds
1.1.1 Pigment and colouration forms in birds
1.1.2 Function of pigmentation in birds
1.1.3 The bird feather
1.1.4 The feather follicle
1.1.5 Theory of natural pattern formation
1.2 Melanin-based pigmentation
1.2.1 The melanocyte
1.2.2 Melanogenesis
1.2.3 The Melanocortin 1 receptor
1.3 The domestic chicken (Gallus gallus domesticus)
1.3.1 Domestication history of the chicken
1.3.2 The chicken as a model for avian pigmentation
1.3.3 Pigment pattern genes in chickens
2 Aims of the Thesis 
3 Study Summaries 
3.1 Autosomal barring in chicken is strongly associated with segregation at the MC1R locus (Paper I).
3.1.1 Background
3.1.2 Results and discussion
3.1.3 Future prospects
3.2 Sex-linked barring is the result of both regulatory and missense mutations in the CDKN2A tumour suppressor gene (Paper II).
3.2.1 Background
3.2.2 Results and discussion
3.2.3 Future prospects
3.3 An inversion is associated with variant male reproductive strategies in the ruff (Philomachus pugnax) and lightly coloured ornamental feathers in the satellite morph (Paper III and IV).
3.3.1 Background
3.3.2 Results and discussion
3.3.3 Future prospects
4 Conclusion