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Written by an international team of experts, Somatic
Genome Variation presents a timely summary of the latest
understanding of somatic genome development and variation in
plants, animals, and microorganisms. Wide-ranging in coverage, the
authors provide an updated view of somatic genomes and genetic
theories while also offering interpretations of somatic genome
variation. The text provides geneticists, bioinformaticians,
biologist, plant scientists, crop scientists, and microbiologists
with a valuable overview of this fascinating field of research.
Auteur
**About the Editor
Xiu-Qing Li, Doctorat d'État en Sciences (France), is a senior level Research Scientist of Molecular Genetics at Agriculture and Agri-Food Canada (Government of Canada). Dr. Li is also an Adjunct Professor at the University of New Brunswick and serves as an editor on PloS ONE, Genetics and Epigeneitcs, and the Potato Journal.
Résumé
Written by an international team of experts, Somatic Genome Variation presents a timely summary of the latest understanding of somatic genome development and variation in plants, animals, and microorganisms. Wide-ranging in coverage, the authors provide an updated view of somatic genomes and genetic theories while also offering interpretations of somatic genome variation. The text provides geneticists, bioinformaticians, biologist, plant scientists, crop scientists, and microbiologists with a valuable overview of this fascinating field of research.
Contenu
List of Contributors xv
Preface and Introduction xix
Acknowledgments xxi
About the Editor xxiii
Part I Somatic Genome Variation in Animals and Humans 1
**1 Polyploidy in Animal Development and Disease 3
**Jennifer L. Bandura and Norman Zielke
1.1 Introduction 3
1.2 Mechanisms Inducing Somatic Polyploidy 4
1.3 The Core Cell Cycle Machinery 8
1.4 Genomic Organization of Polyploid Cells 9
1.5 Endoreplication: An Effective Tool for Post-Mitotic Growth and Tissue Regeneration 10
1.6 Initiation of Endoreplication in Drosophila 11
1.7 Mechanisms of Endocycle Oscillations in Drosophila 15
1.8 Gene Amplification in Drosophila Follicle Cells 17
1.9 Endocycle Entry in the Trophoblast Lineage 19
1.10 Mechanisms of Endocycle Oscillations in Trophoblast Giant Cells 22
1.11 Cardiomyocytes 23
1.12 Hepatocytes 25
1.13 Megakaryocytes 28
1.14 Concluding Remarks 30
Acknowledgments 31
References 31
**2 Large-Scale Programmed Genome Rearrangements in Vertebrates 45
**Jeramiah J. Smith
2.1 Introduction 45
2.1 Hagfish 46
2.3 Sea Lamprey 48
2.4 Zebra Finch 48
2.5 Emerging Themes and Directions 49
References 51
**3 Chromosome Instability in Stem Cells 55
**Paola Rebuzzini, Maurizio Zuccotti, Carlo Alberto Redi and Silvia Garagna
3.1 Introduction 55
3.2 Pluripotent Stem Cells 56
3.3 Somatic Stem Cells 58
3.4 Mechanisms of Chromosomal Instability 59
3.5 Mechanisms of Chromosomal Instability in Stem Cells 63
References 63
Part II Somatic Genome Variation in Plants 75
**4 Mechanisms of Induced Inheritable Genome Variation in Flax 77
**Christopher A. Cullis
4.1 Introduction 77
4.2 Restructuring the Flax Genome 79
4.3 Specific Genomic Changes 80
4.4 What Happens When Plastic Plants Respond to Environmental Stresses? 83
4.5 When Do the Genomic Changes Occur and Are they Adaptive? 83
4.6 Is this Genomic Response of Flax Unique? 84
4.7 Concluding Remarks 87
Acknowledgments 87
References 87
**5 Environmentally Induced Genome Instability and its Inheritance 91
**Andrey Golubov
5.1 Introduction 91
5.2 Stress and its Effects on Genomes 92
5.3 Transgenerational Inheritance 96
5.4 Concluding Remarks 97
Acknowledgments 97
References 97
**6 The Mitochondrial Genome, Genomic Shifting, and Genomic Conflict 103
**Gregory G. Brown
6.1 Introduction 103
6.2 Heteroplasmy and Sublimons 105
6.3 Cytoplasmic Male Sterility (CMS) in Plants 108
6.4 Mitochondrial Sublimons and CMS 109
6.5 Restorer Gene Evolution: Somatic Genetic Changes Drive Nuclear Gene Diversity? 111
6.6 Concluding Remarks 112
References 113
**7 Plastid Genome Stability and Repair 119
*Éric Zampini, Sébastien Truche, Étienne Lepage, Samuel Tremblay?]Belzile and Normand Brisson*
7.1 Introduction 120
7.2 Characteristics of the Plastid Genome 121
7.3 Replication of Plastid DNA 124
7.4 Transcription in the Plastid 130
7.5 The Influence of Replication and Transcription on Plastid Genome Stability 131
7.6 Plastid Genome Stability and DNA Repair 133
7.7 Outcomes of DNA Rearrangements 145
7.8 Concluding Remarks 147
References 148
Part III Somatic Genome Variation in Microorganisms 165
**8 RNA-Mediated Somatic Genome Rearrangement in Ciliates 167
**John R. Bracht
8.1 Introduction 168 ...