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Polyploidy and Genome Evolution
Polyploidy – whole-genome duplication (WGD) – is a fundamental driver of biodiversity with significant consequences for genome structure, organization, and evolution. Once considered a speciation process common only in plants, polyploidy is now recognized to have played a major role in the structure, gene content, and evolution of most eukaryotic genomes. In fact, the diversity of eukaryotes seems closely tied to multiple WGDs. Polyploidy generates new genomic interactions – initially resulting in “genomic and transcriptomic shock” – that must be resolved in a new polyploid lineage. This process essentially acts as a “reset” button, resulting in genomic changes that may ultim...
Hox Modules in Evolution and Development
Few, if any, genes have had the same level of impact on the field of evolutionary-developmental biology (evo-devo) as the Hox genes. These genes are renowned for their roles in patterning the body plans and development of the animal kingdom. This is complemented by the distinctive organisation of these genes in the genome, with them frequently being found as clusters in which gene position is linked to when and where the individual genes are expressed, particularly during embryogenesis. This book provides the latest overviews of Hox gene organisation and function for major clades of animals from across the animal kingdom. With the rapidly increasing availability of high-quality whole genome ...
Old Questions and Young Approaches to Animal Evolution
Animal evolution has always been at the core of Biology, but even today many fundamental questions remain open. The field of animal ‘evo-devo’ is leveraging recent technical and conceptual advances in development, paleontology, genomics and transcriptomics to propose radically different answers to traditional evolutionary controversies. This book is divided into four parts, each of which approaches animal evolution from a different perspective. The first part (chapters 2 and 3) investigates how new sources of evidence have changed conventional views of animal origins, while the second (chapters 4–8) addresses the connection between embryogenesis and evolution, and the genesis of cellul...
Hormones and Reproduction of Vertebrates, Volume 1
Hormones and Reproduction of Vertebrates, Volume 1: Fishes is the first of five second-edition volumes representing a comprehensive and integrated overview of hormones and reproduction in fishes, amphibians, reptiles, birds, and mammals. The book includes coverage of endocrinology, neuroendocrinology, physiology, behavior, and anatomy of fish reproduction. It provides a broad treatment of the roles of pituitary, thyroid, adrenal, and gonadal hormones in all aspects of reproduction, as well as descriptions of major life history events. New to this edition is a concluding assessment of the effect of environmental influences on fishes. Initial chapters in this book broadly examine sex determina...
Across the Bridge
“Addresses an important topic for biologists and zoologists about vertebrates’ place in the ‘grand scheme’ . . . genuinely witty and charming . . . magnificent.” —Neil J. Gostling, University of Southampton Our understanding of vertebrate origins and the backbone of human history evolves with each new fossil find and DNA map. Many species have now had their genomes sequenced, and molecular techniques allow genetic inspection of even non-model organisms. But as longtime Nature editor Henry Gee argues in Across the Bridge, despite these giant strides and our deepening understanding of how vertebrates fit into the tree of life, the morphological chasm between vertebrates and inverte...
不老不死は可能か
これまで不老不死は荒唐無稽な夢物語とみなされてきましたが、技術の進歩とともに、必ずしも実現不可能ではないと考えられるようになりました。実際、不死はともかくとして、不老は、衛生や栄養の改善、抗老化医学の進歩により、健康寿命が延びるという形で、少しずつ実現しつつあります。本書は、今後、新しい技術によって不老不死が実現できるかどうか、また不老不死の時代が来るとするなら、それに備えて今から何をすべきかを論じます。 目次 第1章 私たちはなぜ老化するのか 第2章 不老不死の三つのス...
Town in the Empire
During the seventeenth century, many of the fundamental characteristics of Spanish America were established. Peter Marzahl adds significantly to our understanding of this period with this study of Popayán, a town in what was then part of New Granada and is now Colombia. New Granada was something of a backwater of the empire, but very likely Popayán was more typical of everyday colonial life than the major centers that have drawn most attention from historians. In the first part of his study, Marzahl describes both town and region, depicts economic activities (agriculture, gold mining, trade), and analyzes urban and rural society. Of particular interest is his discussion of the complex inte...
Pablo Abeita
Pablo Abeita is the first biography of Pablo Abeita, a man considered the most important Native leader in the Southwest in his day. Abeita was a strong advocate for Isleta and the other eighteen New Mexico pueblos during the periods of assimilation, boarding schools, and the reform of US Indian policy. Working with some of the most progressive Indian agents in New Mexico, with other Pueblo leaders, and with advocacy groups, he received funding for much-needed projects, such as a bridge across the Rio Grande at Isleta. To achieve these ends, Abeita testified before Congress and was said to have met, and in some cases befriended, nearly every US president from Benjamin Harrison to Franklin D. Roosevelt. Abeita dealt with many issues that are still relevant today, including reform of US Indian policy, boarding schools, and Pueblo sovereignty. Pablo Abeita’s story is one of a people still living on their ancestral homelands, struggling to protect their land and water, and ultimately thriving as a modern pueblo.
