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Informationen zum Autor Z. Jeffrey Chen is the D. J. Sibley Centennial Professor in Plant Molecular Genetics, at the University of Texas at Austin. James A. Birchler is Curators' Professor of Biological Sciences, Division of Biological Sciences, at the University of Missouri. Klappentext Understanding the evolutionary consequences of polyploidy and the biological complexity of hybrid vigor or heterosis is a key challenge for geneticists and biologists in the post-genomic era. They share the common aspect that they result from bringing together different genomes. Polyploidy and hybrid vigor have implications for biological diversity, species survival, and trait improvement. Grasping the genomic and molecular underpinning of polyploidy and heterosis could have a significant impact in numerous fields ranging from evolutionary biology, computational biology, genetics, epigenetics, and biotechnology. Moreover, they will no doubt impact the development of sustainable food and biofuel production. Polyploid and Hybrid Genomics provides a timely synthesis of the latest research in the molecular mechanisms that underlie this important genetic and evolutionary process.Polyploid and Hybrid Genomics is made up of contributions from leading researchers in the field around the world, providing a global and comprehensive view of the subject. The book is divided into three sections: the first two sections explore the genomics of hybrids and of polyploids, respectively. The final section discusses key mechanisms for novelty in polyploids and hybrids.Providing broad-ranging coverage, and up-to-date information, Polyploid and Hybrid Genomics will be an invaluable resource for geneticists, cropscientists, and evolutionary biologists alike. Zusammenfassung Polyploidy plays an important role in biological diversity, trait improvement, and plant species survival. Understanding the evolutionary phenomenon of polyploidy is a key challenge for plant and crop scientists. Inhaltsverzeichnis Contributors xi Preface xvii Section I Genomics of Hybrids 1 1 Yeast Hybrids and Polyploids as Models in Evolutionary Studies 3 Avraham A. Levy, Itay Tirosh, Sharon Reikhav, Yasmin Bloch, and Naama Barkai 2 Transcriptome Profiling of Drosophila Interspecific Hybrids: Insights into Mechanisms of Regulatory Divergence and Hybrid Dysfunction 15 Jos¿e M. Ranz, Shu-Dan Yeh, Kevin G. Nyberg, and Carlos A. Machado 3 cis- and trans-Regulation in Drosophila Interspecific Hybrids 37 Joseph D. Coolon and Patricia J. Wittkopp 4 Gene Expression and Heterosis in Maize Hybrids 59 Mei Guo and J. Antoni Rafalski 5 Integrating "Omics" Data and Expression QTL to Understand Maize Heterosis 85 Camille Rustenholz and Patrick S. Schnable 6 Genomics and Heterosis in Hexaploid Wheat 105 Zhongfu Ni, Yingyin Yao, Huiru Peng, Zhaorong Hu, and Qixin Sun 7 Progress of Genomics and Heterosis Studies in Hybrid Rice 117 Lei Zhang, Yonggang Peng, Yang Dong, Hongtao Li, Wen Wang, and Zhen Zhu 8 Heterosis: The Case for Single-Gene Overdominance 137 Katie L. Liberatore, Ke Jiang, Dani Zamir, and Zachary B. Lippman Section II Genomics of Polyploids 153 9 Genomics and Transcriptomics of Photosynthesis in Polyploids 155 Jeremy E. Coate and Jeff J. Doyle 10 Chromosomal and Gene Expression Changes in Brassica Allopolyploids 171 Eric Jenczewski, A.M. Ch`evre, and K. Alix 11 Dynamics of Duplicated Gene Expression in Polyploid Cotton 187 Keith L. Adams and Jonathan F. Wendel 12 Reprogramming of Gene Expression in the Genetically Stable Bread Allohexaploid Wheat 195 Dominique Arnaud, Houda ...
Sommario
Contributors
Preface
Section I Genomics of Hybrids
1 Yeast Hybrids and Polyploids as Models in Evolutionary Studies
Avraham A. Levy, Itay Tirosh, Sharon Reikhav, Yasmin Bloch, and Naama Barkai
Introduction
Experimental Advantages of Budding Yeasts
Yeast Hybrids
Yeast Polyploids
Paleopolyploidy and Duplicated Genes Retention
Ploidy and Evolution--Theory and Experiments
Genomic Response to Polyploidy and Hybridity
Yeast Hybrids as a Tool for Studying Genomic Regulation
Conclusions
Acknowledgments
References
2 Transcriptome Profiling of Drosophila Interspecific Hybrids: Insights into Mechanisms of Regulatory Divergence and Hybrid Dysfunction
Jos´e M. Ranz, Shu-Dan Yeh, Kevin G. Nyberg, and Carlos A. Machado
Introduction
Gene Expression
Drosophila Hybrids as a Model to Study Transcriptome Divergence
Outlook
References
3 cis- and trans-Regulation in Drosophila Interspecific Hybrids
Joseph D. Coolon and Patricia J. Wittkopp
Introduction
Distinguishing between cis- and trans-Regulatory Changes Using eQTL, GWAS, and ASE
Methods Used to Quantify ASE
Studies of cis- and trans-Regulation in Interspecific Hybrids of Drosophila
Insights into Regulatory Evolution
cis- and trans-Regulatory Evolution in Drosophila: A Look Ahead
References
4 Gene Expression and Heterosis in Maize Hybrids
Mei Guo and J. Antoni Rafalski
Introduction
Gene Expression in Maize Hybrids--Transcript Abundance Relative to Inbred Parents
Allele-Specific Gene Regulation in the Maize Hybrid
Modes of Gene Regulation in the Hybrid
Genetic and Structural Diversities That Contribute to Regulatory Variation
Understanding Heterosis--Various Models
Perspectives
Acknowledgments
References
5 Integrating "Omics" Data and Expression QTL to Understand Maize Heterosis
Camille Rustenholz and Patrick S. Schnable
Introduction
Experimental Design and eQTL Analysis
eQTL and the Mechanisms Underlying Gene Regulation
Building Networks and Integrating "omics" to Understand How Variants, in Particular eQTL, Can Result in Phenotypic Variation
Conclusion and Future Prospects
Acknowledgments
References
6 Genomics and Heterosis in Hexaploid Wheat
Zhongfu Ni, Yingyin Yao, Huiru Peng, Zhaorong Hu, and Qixin Sun
Introduction
Genetic Dissection of Wheat Heterosis
Transcriptome and Proteome Analysis between Wheat Hybrids and Parents
Some Differentially Expressed Patterns are Correlated with Wheat Heterosis
Function Analysis of Differentially Expressed Genes between Wheat Hybrids and Their Parental Lines
Possible Regulatory Mechanism Contributing to Differential Gene Expression in Wheat
Physiological Basis of Heterosis for Grain Yield in Wheat
Concluding Remarks
Acknowledgments
References
7 Progress of Genomics and Heterosis Studies in Hybrid Rice
Lei Zhang, Yonggang Peng, Yang Dong, Hongtao Li, Wen Wang, and Zhen Zhu
Introduction
Progress in the Study of Rice Genomics
Heterosis and Transcriptomics in Hybrid Rice
Epigenetic Modification and Heterosis in Hybrid Rice
Molecular Mechanism behind Heterosis
Perspectives
Acknowledgments
References
8 Heterosis
