This timely work is a collection of papers presented at the XIth international congress of the International Association of Plant Tissue Culture & Biotechnology. It continues the tradition of the IAPTC&B in publishing the proceedings of its congresses. The work is an up-to-date report on the most significant advances in plant tissue culture and biotechnology as presented by leading international scientists. It will be crucial reading for agricultural scientists, among others.

Much of our knowledge of stem cells has been inferred from studies of remarkable few species. The ability to manipulate stem cells in "model" organisms such as the mouse and a few other vertebrate species has driven our understanding of basic biology of stem cells. The power and efficiency of studying model organisms, however, comes at a cost since a few species, obviously, do not reflect natures true diversity. Unfortunately, although all multicellular organisms seem to rely on stem cells, and although this seems to be a question of key importance for understanding the evolution of animal life, little is known about stem cells in early-branching taxa.

The book "Stem Cells: From Hydra to Man" illustrates that here is more than human and mouse stem cells to learn from. Reflecting an enormous growth in the knowledge of stem cells in various organisms, the book presents the conceptual language and the nature of questions, as well as a summary of the advances in our understanding of stem cells from a comparative point of view that has resulted from the development of new technology and the development of novel model organisms over the past few decades. As such this book is largely a horizon analysis of a frontier rather than a retrospective. It presents an integrative approach to animal stem cells and covers the major contributions, tools and trends in a newly emerging field: comparative stem cell biology.

Despite the tremendous diversity of the cells of the hematopoietic system, they are all derived from common precursor cells that are generated in the fetus and persist into adult life. In this regard, Band T lymphocytes, which comprise the two arms of the antigen-specific and inducible immune system, though functionally very different, are descendants of the same stem cell precursor. In the past several years, we have witnessed an explosion of information regarding the process by which differentiation of B-and T-cells from stem cells occurs. This information, like the answers to most important biological questions, has come from multiple and diverse directions. Because all hematopoietic cells arise from common precursors, complex regulatory processes must be involved in determining commitment to various lineages. Understanding commitment to the B- or T-cell lineage remains incomplete; however, identification of transcription factors necessary for progression along specific B-and T-cell pathways suggests that we are on the verge of understanding the molecules involved in the initial fate-determining steps. Studies of this type previously could be accomplished only in nonmammalian systems that are more amenable to genetic approaches. However, new technologies allow increasingly elegant and informative studies in mammalian systems, particularly for cells of the hematopoietic system.

This book explores the potential applications of animal stem cells in veterinary medicine. It begins with an overview of stem cells and their application in treating various animal diseases, including mastitis. In turn, the book discusses the challenges of using stem cells in regenerative medicine and emphasizes the importance of understanding the action of stem cells and preclinical evidence for ensuring safety and therapeutic efficacy. It also presents methods for the identification, characterization, and quantification of stem cells. Further, it discusses the therapeutic applications of different stem cells, including milk-derived, testicular, and mesenchymal stem cells in veterinary medicine. Lastly, it discusses strategies for and therapeutic applications of genome editing by CRISPER/Cas9 in mammary stem cells. As such, the book offers a valuable resource for students and scientists working in the veterinary sciences and veterinarians.

In most respects, Abigail and Brittany Hensel are normal American twins. Born and raised in a small town, they enjoy a close relationship, though each has her own tastes and personality. But the Hensels also share a body. Their two heads sit side-by-side on a single torso, with two arms and two legs. They have not only survived, but have developed into athletic, graceful young women. And that, writes Mark S. Blumberg, opens an extraordinary window onto human development and evolution.
In Freaks of Nature, Blumberg turns a scientist's eye on the oddities of nature, showing how a subject once relegated to the sideshow can help explain some of the deepest complexities of biology. Why, for example, does a two-headed human so resemble a two-headed minnow? What we need to understand, Blumberg argues, is that anomalies are the natural products of development, and it is through developmental mechanisms that evolution works. Freaks of Nature induces a kind of intellectual vertigo as it upends our intuitive understanding of biology. What really is an anomaly? Why is a limbless human a "freak," but a limbless reptile-a snake-a successful variation?
What we see as deformities, Blumberg writes, are merely alternative paths for development, which challenge both the creature itself and our ability to fit it into our familiar categories. Rather than mere dead-ends, many anomalies prove surprisingly survivable-as in the case of the goat without forelimbs that learned to walk upright. Blumberg explains how such variations occur, and points to the success of the Hensel sisters and the goat as examples of the extraordinary flexibility inherent in individual development.
In taking seriously a subject that has often been shunned as discomfiting and embarrassing, Mark Blumberg sheds new light on how individuals-and entire species-develop, survive, and evolve.

What is sex? Has it always existed? What purpose does it serve? Why are there penises and vaginas? These questions are at the very core of Dirty Biology, an erudite (and hilarious) graphic novel that aims to teach you everything you wanted to know about sex-and then some. "Sex" can mean a number of things. It can refer to sex organs, to sex types, to the act of copulation, or to the simple exchange of genetic material. This book explains what we actually mean when we talk about sex and reveals a wealth of astonishing scientific details along the way. For example, did you know that some species can have sex without genitals? And when it comes to genitals, did you know that there's an amazing diversity of these across species? From the evolution of penises and vaginas to far-fetched mating rituals and the shocking consequences of the sex act, Dirty Biology exposes sex for what it is: a lot more interesting and more complicated than the simplistic image we often have of it.

The ability of striated muscle tissue to adapt to changes in activity or in working conditions is extremely high. In some ways it is comparable to the ability of the brain to learn. The interest in muscle adaptation is increasing in relation to the idea that physical fitness helps in the prevention of disease, may counteract the loss of physical performance and generally improves wellbeing. Plasticity is the word used since the late 1970a (TM)s to indicate collectively all the processes and mechanisms which form the background of muscle adaptation. This book aims to provide a systematic updating of the available knowledge on molecular and cellular mechanisms, as well as on changes at whole muscle level. The book means to be a guide and a help for people who enter the field as PhD or medical students, but is also a tool for refreshing and updating knowledge for people already active in the field in basic sciences as well as in applied disciplines such as neurology, sports science and rehabilitation.

This volume collects essays from prominent intellectuals and public figures based on talks given at the 2015 Darwin College Lectures on the theme of 'development'. The writers are world-renowned experts in such diverse fields as architecture, astronomy, biology, climate science, economy, psychology, sports and technology. Development includes contributions from developmental biologist and Nobel laureate John B. Gurdon, Olympic gold medallist Katherine Grainger, astronomer and cosmologist Richard Ellis, developmental psychologist Bruce Hood, former Met Office Chief Scientist Julia Slingo, architect Michael Pawlyn, development economist Ha-Joon Chang and serial entrepreneur Hermann Hauser. While their perspectives and interpretations of development vary widely, their essays are linked by a common desire to describe and understand how things change, usually in the direction of ever-increasing complexity. Written with the lay reader in mind, this interdisciplinary book is a must-read for anybody interested in the mechanisms underlying the changes we see in the world around us.

This book addresses the biological effects of the reasonably large number of classes of compounds that have been recognized as endocrine disrupters. These compounds have been found to persist as pollutants in the environment, and have been blamed for causing developmental disorders and/or fertility problems in fish, amphibians, reptiles, birds, and possibly humans. This book presents the relevant fundamentals of the endocrine systems of animals and humans, the toxicology, developmental toxicology, ecology, and risk assessment methods, and lays out the current state of understanding for the whole field, organized by the classes of compounds that have been identified as endocrine disrupters.

Sue Savage-Rumbaugh's work on the language capabilities of the bonobo Kanzi has intrigued the world because of its far-reaching implications for understanding the evolution of the human language. This book takes the reader behind the scenes of the filmed language tests. It argues that while the tests prove that Kanzi has language, the even more remarkable manner in which he originally acquired it - spontaneously, in a culture shared with humans - calls for a re-thinking of language, emphasizing its primal cultural dimensions.

West-Eberhard is widely recognized as one of the most incisive thinkers in evolutionary biology. This book assesses all the evidence for our current understanding of the role of changes in body plan and development for the process of speciation. The process of evolution is systematically reassessed to integrate the insights coming from developmental genetics. Every serious student of evolution, and a substantial share of developmental biologists and geneticists, will need to take note of this contribution. The timing is clearly ripe for the synthesis that this work will help bring about.

Transcription factors are essential mediators of the genetic programs that control development and physiology. This exciting book presents current knowledge of transcription factors from two viewpoints. First, the basic science of transcriptional regulation is discussed. Second, inherited human diseases attributable to mutations in DNA sequences encoding transcription factors or their cognate binding sites are described. Readers are also introduced to the involvement of transcription factors in somatic cell genetic disease (cancer) and epigenetic disease (teratogenesis).

From a single cell - a fertilized egg - comes an elephant, a fly, or a human. How does this astonishing feat happen? How does the egg 'know' what to become? How does it divide into the different cells, the separate tissues, the brain, the fingernail - every tiniest detail of the growing foetus? These are the questions that the field of developmental biology seeks to answer. It is an area that is closely linked to genetics, evolution, and molecular biology. The processes are deeply rooted in evolutionary history; the information is held in genes whose vital timings in switching on and off is orchestrated by a host of proteins expressed by other genes. Timing is of the essence. Here, the distinguished developmental biologist Lewis Wolpert gives a concise account of what we now know about development, discussing the first vital steps of growth, the patterning created by Hox genes and the development of form, embryonic stem cells, the timing of gene expression and its management, chemical signalling, and growth. ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable.

Symbiotic interactions are those relationships between organisms that permit some species to overcome their physiological limitations by exploiting the capacities of others. This volume presents a modern synthesis of scientific knowledge of symbiosis, from the molecular mechanisms underlying its function to the ecological and evolutionary impact of such associations. With an emphasis on basic principles, the book takes the novel approach that symbiosis is a vehicle by which many organisms have gained access to complex metabolic capabilities. Examples are offered to illustrate this concept, including photosynthetic algae in corals, nitrogen-fixing bacteria in plant roots, and cellulose-degrading micro-organisms in herbivorous mammals. The traditional view of symbioses as mutually beneficial relationships is explicitly abandoned. The book draws together the wide-ranging literature on the topic, providing an integrated introduction that is accessible to undergraduates. The work serves as an excellent text for courses in symbiosis, and as a supplementary resource for students in ecology, evolutionary biology, and parasitology. As an up-to-date review of the field, the book will also be valued by graduate students and researchers.

This book offers the first comprehensive summary of life-history evolution, a field that holds a central position in modern ecology and evolutionary biology. Structured for teaching, with problem sets at the end of each chapter, the contents will interest all biologists wishing to understand the evolution of the life cycle and the causes of phenotypic variation in fitness.

Today, developmental and evolutionary biologists are focusing renewed attention on the developmental process - those genetic and cellular factors which influence variation in individual body shape or metabolism. They are attempting to understand better how evolutionary trends and patterns within individuals might be limited and controlled. In this book the author reviews the classical literature on embryology, morphogenesis, and palaeontology, and presents recent genetic and molecular studies on development. The result is a new perspective on a set of problems of fundamental importance to developmental and evolutionary biologists. Readership: developmental and evolutionary biologists.

How does death help us understand the living? Death is more than the last event of life; it is interwoven into our growth, development, protection against disease, and more. It influences the direction of entire species via the cycle of a lifespan, and it involves asking many fascinating questions. How do we differentiate between life and death, though? How do we know when a person, animal, or cell is really dead? How much grey area is there in the science? Why do we age? Can we do anything about it? Scientifically, there's much we can learn about a living thing from its cells. In all living things, cells seem to carry "death" gene programs. Some living organisms have created systems to use these to their own advantage. Humans, for example, use the death of specific cells to hone our immune system and to give us fingernails and hair. Perhaps the most dramatic use occurs during the metamorphosis of insects and frogs. Even single-celled organisms use "quorum sensing" to eliminate some cells to ensure the overall survival of their colony in harsh environments. Thus, there is more to death than just dying. This latest book from science writer Gary C. Howard ties together the many ways that death helps us understand life. He synthesizes the involvement and relation of cells, tissues, organisms, and populations, explaining what happens at the end of life. Between discussions about popular topics such as the ethics of extending life and cell regeneration, Howard also answers fascinating questions about life and death. The resulting book examines how the end of life is determined and what we can learn from this process.

The book focuses on the lymphatic vascular system from a developmental biologist's point of view. It provides an overview on the many recent advances in understanding the development of lymphatic vessels, using advanced genetic models in conjunction with state of the art imaging. For each chapter a synopsis is provided, highlighting the main points in a concise manner. The book is intended for professors and researchers in vascular biology, angiogenesis research and developmental biology. It furthermore offers an excellent basis for entry level researchers and newcomers to this field, as well as for teachers, graduate students, advanced science and medical students.

All being done, we went to Mrs Shipmans, who is a great butter-woman; and I did see there the most of milke and cream, and the cleanest, that I ever saw in my life (29 May 1661). Among others, Sir Wm. Petty did tell me that in good earnest, he hath in his will left such parts of his estate to him that could invent such and such things -as among others, that could discover truly the way of milk coming into the breasts of a woman ... (22 March 1665). My wife tells me that she hears that my poor aunt James hath had her breast cut off here in tow- her breast having long been out of order (5 May 1665). From the Diary of Samuel Pepys, published as The Shorter Pepys (edited by R. Latham), Penguin Books (1987) The long-standing ultimate importance of research on the mammary gland is illustrated by the importance attached to cows' milk for human consumption, to human lactation and to breast cancer by Samuel Pepys and his contemporaries in the middle of the 17th century. Research has tended to develop in isolation in these three areas of continuing contemporary importance largely because in most countries, the underlying science of agricultural productivity is funded separately from the underlying science of human health and welfare.

The vertebrate retina has a form that is closely and clearly linked to its func tion. Though its fundamental cellular architecture is conserved across verte brates, the retinas of individual species show variations that are also of clear and direct functional utility. Its accessibility, readily identifiable neuronal types, and specialized neuronal connectivity and morphology have made it a model system for researchers interested in the general questions of the genet ic, molecular, and developmental control of cell type and shape. Thus, the questions asked of the retina span virtually every domain of neuroscientific inquiry-molecular, genetic, developmental, behavioral, and evolutionary. Nowhere have the interactions of these levels of analysis been more apparent and borne more fruit than in the last several years of study of the develop ment of the vertebrate retina. Fields of investigation have a natural evolution, rdoving through periods of initial excitement, of framing of questions and controversy, to periods of synthesis and restatement of questions. The study of the development of the vertebrate retina appeared to us to have reached such a point of synthesis. Descriptive questions of how neurons are generated and deployed, and ques tions of mechanism about the factors that control the retinal neuron's type and distribution and the conformation of its processes have been posed, and in good part answered. Moreover, the integration of cellular accounts of development with genetic, molecular, and whole-eye and behavioral accounts has begun."

Would you ask a honeybee to point at a screen and recognise a facial expression? Or ask an elephant to climb a tree? While humans and non-human species may inhabit the same world, it's likely that our perceptual worlds differ significantly. Emphasising Uexkull's concept of 'umwelt', this volume offers practical advice on how animal cognition can be successfully tested while avoiding anthropomorphic conclusions. The chapters describe the capabilities of a range of animals - from ants, to lizards to chimpanzees - revealing how to successfully investigate animal cognition across a variety of taxa. The book features contributions from leading cognition researchers, each offering a series of examples and practical tips drawn from their own experience. Together, the authors synthesise information on current field and laboratory methods, providing researchers and graduate students with methodological advice on how to formulate research questions, design experiments and adapt studies to different taxa.

Intended for undergraduate and graduate courses in plant development, this book explains how the cells of a plant acquire and maintain their specific fates. Plant development is a continuous process occurring throughout the life cycle, with similar regulatory mechanisms acting at different stages and in different parts of the plant. Rather than focussing on the life cycle, the book is structured around these underlying mechanisms, using case studies to provide students with a framework to understand the many factors, both environmental and endogenous, that combine to regulate development and generate the enormous diversity of plant forms.
New approach to the study of plant development and a refreshing look at this fast-moving area.
Authors focus their discussion on the basic mechanisms which underpin plant development, tackling the fundamental question of how a single cell becomes a complex flowering plant from a cellular perspective.
An up-to-date, modern text in plant development for advanced level undergraduates and postgraduates in plant science.
Thought-provoking treatment of a difficult subject, the text will satisfy the needs of advanced level undergraduates and postgraduates in plant science.
Experimental case studies throughout.
The artwork from the book is available at www.blackwellpublishing.com/leyser

One hundred years after Darwin considered how sexual selection shapes the behavioral and morphological characteristics of males for acquiring mates, Parker realized that sexual selection continues after mating through sperm competition. Because females often mate with multiple males before producing offspring, selection favors adaptations that allow males to preempt sperm from previous males and to prevent their own sperm from preemption by future males. Since the 1970s, this area of research has seen exponential growth, and biologists now recognize sperm competition as an evolutionary force that drives such adaptations as mate guarding, genital morphology, and ejaculate chemistry across all animal taxa. The insects have been critical to this research, and they still offer the greatest potential to reveal fully the evolutionary consequences of sperm competition.

This book analyzes and extends thirty years of theoretical and empirical work on insect sperm competition. It considers both male and female interests in sperm utilization and the sexual conflict that can arise when these differ. It covers the mechanics of sperm transfer and utilization, morphology, physiology, and behavior. Sperm competition is shown to have dramatic effects on adaptation in the context of reproduction as well as far-reaching ramifications on life-history evolution and speciation.

Written by a top researcher in the field, this comprehensive, up-to-date review of the evolutionary causes and consequences of sperm competition in the insects will prove an invaluable reference for students and established researchers in behavioral ecology and evolutionary biology.