Atlas of Early Zebrafish Brain Development: A Tool for Molecular Neurogenetics, Second Edition, remains the only neuroanatomical expression atlas of important genetic and immunohistochemical markers of this vertebrate model system. It represents a key reference and interpretation matrix for analyzing expression domains of genes involved in Zebrafish brain development and neurogenesis, and serves as a continuing milestone in this research area. This updated volume provides in-situ hybridized and immunostained preparations of complete series of brain sections, revealing markers of the fundamental stages in the life history of neuronal cells in very high quality preparations and photographic plates. Specific additions to this edition include documentation on the distribution of neurons expressing GABA, dopamine and serotonin, material on the basal ganglia, hypothalamus, and the caudal, segmented part of the diencephalon, new theories on the early organization of the telencephalon and thalamus, and integration of a comparative perspective on the mid- and hindbrain. Documentation on the distribution of neurons expressing GABA, dopamine and serotonin Material on the basal ganglia, hypothalamus, and the caudal, segmented part of the diencephalon New theories about the early organization of the telencephalon and thalamus Integration of a comparative perspective on the mid- and hindbrain

"The book introduces the reader to the field and shows principles of vertebrate brain development and neurogenesis. It will also be of great value to investigators of other model organisms such as frog, chick, and mouse."--BOOK JACKET.

Zebrafish are widely considered an excellent model system for vertebrate development. The embryo is transparent, thereby enabling visualization and use of labelling and transgenic approaches. Moreover, because of the ease of inducing new mutations in zebrafish and similarity with the human genome, this organism may be used effectively for disease studies. For example, mutant zebrafish are being utilized for testing drugs that will combat a range of human diseases, from Alzheimer's and cancer to kidney failure and congenital heart disease. For the first time, this atlas provides the research community with a complete reference for zebrafish anatomy spanning the early embryo all the way to adulthood. The authors employ the technique of optical projection tomography (OPT), and offer a series of sections in multiple planes from each sample. The contents are organized by developmental stages, with over 200 images that contain annotations describing anatomical structures relevant to development. In addition, chapters feature explanatory text that highlights major developments in the zebrafish during each stage. Provides the first comprehensive anatomical resource that covers all regions of zebrafish anatomy from the larval period to adulthood The over 200 images include explanatory notes Each chapter contains a concise description of key anatomical features that factor in zebrafish development Despite many years of use as a model system, until now there has never been a guide to zebrafish at the larval stage The book's website contains a database of over 10k sections from different regions as well as 3D images that are interactive

Zebrafish are widely considered an excellent modelsystem for vertebrate development. The embryo is transparent, thereby enabling visualization and use of labelling and transgenic approaches. Moreover, because of the ease of inducing new mutations in zebrafish and similarity with the human genome, this organism may be used effectively for disease studies. For example, mutant zebrafish are being utilized for testing drugs that will combat a range of human diseases, from Alzheimer's and cancer to kidney failure and congenital heart disease. For the first time, this atlas provides the research community with a complete reference for zebrafish anatomy spanning the early embryo all the way to adulthood. The authors employ the technique of optical projection tomography (OPT), and offer a series of sections in multiple planes from each sample. The contents are organized by developmental stages, with over 200 images that contain annotations describing anatomical structures relevant to development. In addition, chapters feature explanatory text that highlights major developments in the zebrafish during each stage. Provides the first comprehensive anatomical resource that covers all regions of zebrafish anatomy from the larval period to adulthoodThe over 200 images include explanatory notesEach chapter contains a concise description of key anatomical features that factor in zebrafish developmentDespite many years of use as a model system, until now there has never been a guide to zebrafish at the larval stageThe book's website contains a database of over 10k sections from different regions as well as 3D images that are interactive"

Adult neurogenesis occurs in proliferative zones of the brain that contain neural progenitor cell populations capable of differentiating into specific cell types. However, we remain limited in our understanding of the signals that regulate neural progenitor cell proliferation and differentiation in adults. Recently zebrafish (Danio rerio) have emerged as an excellent model for studying the molecular mechanisms behind adult neurogenesis, because sixteen proliferative zones remain active in the adult brains. Thousands of fluorescent transgenic reporter lines have been generated in zebrafish that reveal gene expression patterns of cell-cell signaling systems, some of which may regulate neurogenesis in these brain regions. Using a new tissue clearing technique and whole brain imaging with fluorescent light sheet microscopy (FLSM) we have generated the first 3-Dimensional atlas of gene expression in an intact adult zebrafish brain. So far we have created a reference brain image and have aligned the expression patterns from three transgenic lines. This work is a preliminary step in the generation of a new, open access brain atlas called the Zebrafish Adult Brain Browser (ZABB). While generating this atlas we focused on documenting the adult brain regions responsive to Sonic Hedgehog (Shh), a cell-cell signaling system known to regulate neurogenesis during embryonic development. We used two Shh-reporter lines to create another atlas comparing reporter transgene expression in whole brain and sectioned tissue to the expression of the Hedgehog (Hh) target gene ptch2 using in situ hybridization. We show that the reporter lines reveal different Hh responsive domains, but together identify fourteen Hh responsive regions in the brain, nine of which are known proliferative zones. Thus, it appears that subsets of both proliferating neural progenitors and non-proliferative cells remain Hh responsive in adult brains. Our data suggests that Hh signaling contributes to the regulation of neural progenitor cells in nine of the sixteen proliferative zones. Uncovering the molecular mechanisms behind adult neurogenesis and forming a greater understanding of adult neural stem cell regulation has the potential to influence the treatment of many neurodegenerative diseases and cancers.

The zebrafish (Danio rerio) is a valuable and common model for researchers working in the fields of genetics, oncology and developmental sciences. This full-color atlas will aid experimental design and interpretation in these areas by providing a fundamental understanding of zebrafish anatomy. Over 150 photomicrographs are included and can be used for direct comparison with histological slides, allowing quick and accurate identification of the anatomic structures of interest. Hematoxylin and eosin stained longitudinal and transverse sections demonstrate gross anatomic relationships and illustrate the microscopic anatomy of major organs. Unlike much of the current literature, this book is focused exclusively on the zebrafish, eliminating the need for researchers to exclude structures that are only found in other fish.