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Download or read book The Role of Cyclin J in Drosophila Oogenesis: Interactions with the PiRNA Pathway written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The role of cyclin J in Drosophila oogenesis: Interactions with the piRNA pathway.
Author : Paul Michael Albosta
Publisher :
ISBN 13 :
Total Pages : 127 pages
Book Rating : 4.:/5 (923 download)
Download or read book Drosophila Cyclin J and the Somatic PiRNA Pathway Cooperate to Regulate Germline Stem Cells written by Paul Michael Albosta and published by . This book was released on 2015 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cyclin J (CycJ) is a highly conserved cyclin that is uniquely expressed specifically in ovaries in Drosophila. Deletion of the genomic region containing CycJ and adjacent genes resulted in a genetic interaction with neighboring piRNA pathway gene, armitage (armi). Here I assessed oogenesis in CycJ null in the presence or absence of mutations in armi or other piRNA pathway genes. Although CycJ null flies had decreased egg laying and hatching rates, ovaries appeared normal indicating that CycJ is dispensable for oogenesis under normal conditions. Further double mutant analysis of CycJ and neighbor armi, as well as two other piRNA pathway members (piwi and aub), revealed that CycJ genetically interacts with the piRNA pathways by enhancing their ability to regulate oogenesis. Double mutants of CycJ and mutants of piwi or armi produced mispackaged egg chambers containing an overabundance of germline cells, while double mutants of CycJ and piwi or armi had more severe defects. CycJ mutants also genetically interacted with mutants of the germline piRNA pathway member aub, resulting in unique oogenesis defects, though they were less severe than defects in double mutants of CycJ and piwi or armi. Piwi and Armi are known to function in both the germline and germline-associated somatic cells. Here I show that the somatic function of armi and piwi promote egg chamber packaging in part by limiting BMP signaling and the accumulation of excess germline stem cells (GSCs) and that CycJ appears to cooperate with the somatic piRNA pathway. The increase of GSCs in armi, piwi, or CycJ double mutants depends on increased BMP signaling. Finally, CycJ promotes follicle cell proliferation in the absence of armi. My results suggest that CycJ genetically interacts with the somatic piRNA pathway to promote egg chamber packaging, limit BMP signaling, limit GSC accumulation, and promote proliferation of follicle cells.
Author : Jose A. Campos-Ortega
Publisher : Springer Science & Business Media
ISBN 13 : 3662024543
Total Pages : 237 pages
Book Rating : 4.6/5 (62 download)
Download or read book The Embryonic Development of Drosophila melanogaster written by Jose A. Campos-Ortega and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 237 pages. Available in PDF, EPUB and Kindle. Book excerpt: " . . . but our knowledge is so weak that no philosoph er will ever be able to completely explore the nature of even a fly . . . " * Thornas Aquinas "In Syrnbolurn Apostolorum" 079 RSV p/96 This is a monograph on embryogenesis of the fruit fly Drosophi la melanogaster conceived as a reference book on morphology of embryonie development. A monograph of this extent and con tent is not yet available in the literature of Drosophila embryolo gy, and we believe that there is areal need for it. Thanks to the progress achieved during the last ten years in the fields of devel opmental and molecular genetics, work on Drosophila develop ment has considerably expanded creating an even greater need for the information that we present here. Our own interest for wildtype embryonie development arose several years ago, when we began to study the development of mutants. While those studies were going on we repeatedly had occasion to state in sufficiencies in the existing literature about the embryology of the wildtype, so that we undertook investigating many of these problems by ourselves. Convinced that several of our colleagues will have encountered similar difficulties we decided to publish the present monograph. Although not expressely recorded, Thomas Aquinas probably referred to the domestic fly and not to the fruit fly. Irrespective of which fly he meant, however, we know that Thomas was right in any case.
Author : David L. Denlinger
Publisher : Cambridge University Press
ISBN 13 : 1108755186
Total Pages : 465 pages
Book Rating : 4.1/5 (87 download)
Download or read book Insect Diapause written by David L. Denlinger and published by Cambridge University Press. This book was released on 2022-02-03 with total page 465 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our highly seasonal world restricts insect activity to brief portions of the year. This feature necessitates a sophisticated interpretation of seasonal changes and enactment of mechanisms for bringing development to a halt and then reinitiating it when the inimical season is past. The dormant state of diapause serves to bridge the unfavourable seasons, and its timing provides a powerful mechanism for synchronizing insect development. This book explores how seasonal signals are monitored and used by insects to enact specific molecular pathways that generate the diapause phenotype. The broad perspective offered here scales from the ecological to the molecular and thus provides a comprehensive view of this exciting and vibrant research field, offering insights on topics ranging from pest management, evolution, speciation, climate change and disease transmission, to human health, as well as analogies with other forms of invertebrate dormancy and mammalian hibernation.
Author : Hon Fong L. Mark
Publisher : CRC Press
ISBN 13 : 1482292998
Total Pages : 703 pages
Book Rating : 4.4/5 (822 download)
Download or read book Medical Cytogenetics written by Hon Fong L. Mark and published by CRC Press. This book was released on 2000-04-11 with total page 703 pages. Available in PDF, EPUB and Kindle. Book excerpt: The only monograph on cytogenetics for the pathologist, this up-to-the-minute reference/text contains the most up-to-date research findings on many important topics in medical genetics-notably FISH (fluorescent in situ hybridation)-based molecular cytogenetic technologies and spectral karyotyping. An excellent resource for cytogeneticists prepar
Author : Malgorzata Kloc
Publisher : Springer
ISBN 13 : 331960855X
Total Pages : 505 pages
Book Rating : 4.3/5 (196 download)
Download or read book Oocytes written by Malgorzata Kloc and published by Springer. This book was released on 2017-08-02 with total page 505 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book combines the most recent knowledge on the maternal, i.e. oocyte/egg-specific, molecules and processes. The volume covers the most recent advances in a plethora of subjects such as: maternal transfer of immunity, localized RNAs functions and mechanisms of RNA localization, transcriptional repression of maternal messages, maternal inheritance and maternal role of CRISPR/Cas9-based genome editing, chromatin remodeling and epigenetic modifications, maternal function of nucleosomes, maternal mitochondria and energy supply, role of bacterial symbionts and their maternal transmission, acquisition of oocyte polarity and evolution of maternal effect genes, germ plasm and oosome origin and functions, mechanisms of oocyte activation and soma germ cells communication. Currently, no other book on the market combines such a comprehensive list of subjects in one volume. Moreover, the information provided is a cross-section through oocytes from various invertebrate and vertebrate species, which is another unique feature of this book. The readers, therefore, get a completely new and invaluable perspective on all covered subjects.
Author : Daniel J. MacPhee
Publisher : Springer
ISBN 13 : 9783319514086
Total Pages : 155 pages
Book Rating : 4.5/5 (14 download)
Download or read book The Role of Heat Shock Proteins in Reproductive System Development and Function written by Daniel J. MacPhee and published by Springer. This book was released on 2017-04-13 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to the paucity of reviews on this subject, this volume aims to be timely and promote additional basic and translational research on these proteins in reproductive system development and function within the fields of Anatomy, Embryology and Cell Biology. The breadth of the work being conducted within Reproduction is exemplified by the contributors to this series who will provide reviews on: Grp78 roles in female reproduction, small heat shock proteins/co-chaperones as players in uterine smooth muscle function, the role of heat shock proteins in sperm function and maternal contribution to oogenesis and early embryogenesis, heat shock factors and testes development, HSP90 in ovarian biology and pathology, and the role of HSP70 in regulation of autophagy in pregnancy and parturition.
Author : Daniel R. Marshak
Publisher : CSHL Press
ISBN 13 : 9780879696733
Total Pages : 566 pages
Book Rating : 4.6/5 (967 download)
Download or read book Stem Cell Biology written by Daniel R. Marshak and published by CSHL Press. This book was released on 2001 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stem cells are the focus of intense interest from a growing, multidisciplinary community of investigators with new tools for isolating and characterizing these elusive cell types. This volume, which features contributions from many of the world's leading laboratories, provides a uniquely broad and authoritative basis for understanding the biology of stem cells and the current excitement about their potential for clinical exploitation. It is an essential work of reference for investigators in embryology, hematology, and neurobiology, and their potential for clinical exploitation. It is an essential work of reference for investigators in embryology, hematology, and neurobiology, and their collaborators in the emerging field of regenerative medicine.
Author : Robert C. King
Publisher :
ISBN 13 :
Total Pages : 252 pages
Book Rating : 4.3/5 (91 download)
Download or read book Ovarian Development in Drosophila Melanogaster written by Robert C. King and published by . This book was released on 1970 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Rajender Singh
Publisher : CRC Press
ISBN 13 : 0429534426
Total Pages : 338 pages
Book Rating : 4.4/5 (295 download)
Download or read book Molecular Signaling in Spermatogenesis and Male Infertility written by Rajender Singh and published by CRC Press. This book was released on 2019-11-06 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spermatogenesis involves the coordination of a number of signaling pathways, which culminate into production of sperm. Its failure results in male factor infertility, which can be due to hormonal, environmental, genetic or other unknown factors. This book includes chapters on most of the signaling pathways known to contribute to spermatogenesis. Latest research in germ cell signaling like the role of small RNAs in spermatogenesis is also discussed. This book aims to serve as a reference for both clinicians and researchers, explaining possible causes of infertility and exploring various treatment methods for management through the basic understanding of the role of molecular signaling. Key Features Discusses the signaling pathways that contribute to successful spermatogenesis Covers comprehensive information about Spermatogenesis at one place Explores the vital aspects of male fertility and infertility Explains the epigenetic regulation of germ cell development and fertility Highlights the translational opportunities in molecular signaling in testis
Author : Diana P. Bratu
Publisher : Humana
ISBN 13 : 9781493928507
Total Pages : 0 pages
Book Rating : 4.9/5 (285 download)
Download or read book Drosophila Oogenesis written by Diana P. Bratu and published by Humana. This book was released on 2015-09-01 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides current up-to-date protocols for preparing the ovary for various imaging techniques, genetic protocols for generating mutant clones, mosaic analysis and assessing cell death. Chapters address methods for performing genome wide gene expression analysis and bioinformatics for studies of RNA-protein interactions. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Authoritative and cutting-edge, Drosophila Oogenesis: Methods and Protocols aims to ensure successful results in the further study of this vital field.
Author : Dagmar Wilhelm
Publisher : Springer
ISBN 13 : 940177417X
Total Pages : 201 pages
Book Rating : 4.4/5 (17 download)
Download or read book Non-coding RNA and the Reproductive System written by Dagmar Wilhelm and published by Springer. This book was released on 2015-12-11 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an overview of the role and function of regulatory RNAs that lack protein-coding potential in key reproductive tissues. This includes the role of small interfering RNAs (siRNAs), microRNAs (miRNAs), PIWI-interacting RNAs (piRNAs), small nucleolar RNAs (snoRNAs) and long non-coding RNAs (lncRNAs). Through clear, detailed and comprehensive debate, international leading experts discuss the role these novel regulators in normal development of sexual dimorphisms, including the differentiation of ovaries and testes, the genital tract including prostate, epididymis and uterus, as well as mammary glands. In addition, particular attention is paid on their role in pathophysiological processes within the reproductive tract. The power of next generation sequencing has proved to be an invaluable tool to discover new non-coding RNAs. While the identification of non-coding RNA is relatively easy, analysing their function represents still a challenge today. In this book, authors present historical and conceptual background information, highlight the ways in which non-coding RNAs function is analysed and present their vision of the future research in their key research area.
Author : M.R.S. Rao
Publisher : Springer
ISBN 13 : 9811052034
Total Pages : 336 pages
Book Rating : 4.8/5 (11 download)
Download or read book Long Non Coding RNA Biology written by M.R.S. Rao and published by Springer. This book was released on 2017-08-16 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: This contributed volume offers a comprehensive and detailed overview of the various aspects of long non-coding RNAs and discusses their emerging significance. Written by leading experts in the field, it motivates young researchers around the globe, and offers graduate and postgraduate students fascinating insights into genes and their regulation in eukaryotes and higher organisms.
Author : Werner A. Mueller
Publisher : Springer
ISBN 13 : 3662437848
Total Pages : 723 pages
Book Rating : 4.6/5 (624 download)
Download or read book Development and Reproduction in Humans and Animal Model Species written by Werner A. Mueller and published by Springer. This book was released on 2015-01-03 with total page 723 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes human development including sexual reproduction and stem cell research with the development of model organisms that are accessible to genetic and experimental analysis in readily understandable texts and 315 multi-colored graphics. The introductory account of model organisms selected from the entire animal kingdom presents general principles, which are then outlined in subsequent chapters devoted to, for example, sexual development; genes controlling development and their contemporary molecular-analysis methods; production of clones and transgenic animals; development of the nervous and circulatory systems; regenerative medicine and ageing. Finally the evolution of developmental toolkits and novelties is discussed including the genetic basis of the enlargement of the human forebrain. Separate boxes are devoted to controversial questions such as the benefits and problems of prenatal diagnostics or the construction of ancient body plans.
Author : Nikolay Kolchanov
Publisher : Springer Science & Business Media
ISBN 13 : 1441971521
Total Pages : 373 pages
Book Rating : 4.4/5 (419 download)
Download or read book Bioinformatics of Genome Regulation and Structure written by Nikolay Kolchanov and published by Springer Science & Business Media. This book was released on 2013-06-05 with total page 373 pages. Available in PDF, EPUB and Kindle. Book excerpt: - The data gathered can be used to solve a wide range of problems - for basic science and applied science
Author : Bibekanand Mallick
Publisher : Academic Press
ISBN 13 : 9780128156698
Total Pages : 0 pages
Book Rating : 4.1/5 (566 download)
Download or read book AGO-Driven Non-Coding RNAs written by Bibekanand Mallick and published by Academic Press. This book was released on 2019-01-24 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 'RNA world' hypothesis that proposed RNA molecules as the first form of genetic material was put forwarded in the late 1980s but got impetus only recently when high-throughput sequencing technologies began unearthing new types of non-coding RNA (ncRNA) transcripts in higher eukaryotes. Till then, research on ncRNAs were primarily confined to transfer RNAs and, ribosomal RNAs, which act as the messengers of the protein synthesis and allow translation of genetic information encoded by DNA into proteins. In recent years, the integration of high-throughput genomic technologies with molecular biology and omics sciences have revolutionized the fields of ncRNA research by identifying the hidden treasures of several new types of ncRNAs encoded in the genomes of several organisms and decrypting their versatile roles in gene expression and epigenetics. Among these, two small endogenous ncRNAs, namely microRNAs (miRNAs) and piwi-interacting RNAs (piRNAs) that drive argonaute (AGO) family of proteins namely Ago and Piwi respectively and silence the expression of genes have geared up molecular and disease biology research in recent years. Both miRNAs and piRNAs are expressed in higher eukaryotes, including human and act as cellular rheostats by regulating the expression of significant fraction of genes encoded in the genomes. The aberrant expressions of these small ncRNAs within the cells cause various abnormalities and diseases including cancer. Manipulating their aberrant expression or function can serve as potential novel diagnostic/prognostic biomarkers and bring in new therapeutic strategies for multiple human diseases. This can be further translated from bench-side to clinic for improving human health. This book captures the essence of the pioneering work of some of the world's leading researchers showcasing the scientific excitements surrounding the evolving regulatory roles of miRNAs and piRNAs highlighting their potential towards the diagnosis and therapeutics of various diseases. The book is geared towards scientists, students, and will particularly appeal to active investigators in RNA biology, molecular biology, cancer research as well as clinicians and will provide them a comprehensive view of recent discoveries and research progresses to utilize miRNAs, piRNAs and their interacting proteins, Ago and Piwi for diagnosis, prognosis and therapeutics of diseases.
Author : Swathi Arur
Publisher : Springer
ISBN 13 : 331944820X
Total Pages : 296 pages
Book Rating : 4.3/5 (194 download)
Download or read book Signaling-Mediated Control of Cell Division written by Swathi Arur and published by Springer. This book was released on 2017-02-28 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume covers the current knowledge base on the role of signaling and environmental pathways that control the normal development of germline stem cells, meiotic progression of oocytes, events of oocyte maturation and fertilization, and the birth of an embryo. Germ cells are uniquely poised to sustain life across generations through the fusion of oocyte and sperm. Because of the central importance of germ cells to life, much work has been dedicated to obtaining a clear understanding of the molecular and signaling events that control their formation and maintenance. Germ cells are set aside from somatic cells in the embryo and go through specialized meiotic cell cycles as the animal matures. These cell cycles are interspersed with long periods of arrest. In human females, meiosis I is initiated in the fetus. At birth, oocytes are arrested in meiosis I; after puberty, every month an oocyte initiates meiosis II – ovulation. Upon sperm availability these cells are fertilized, generate an embryo, and the cycle-of-life continues. During meiotic I progression and arrest, the fitness of oocytes and their progeny are likely influenced by environmental cues and signaling pathways. A lot of recent work has focused on understanding the mechanisms that regulate oocyte fitness and quality in humans and vertebrates. Much of our understanding on the events of meiosis I and germline stem cell populations comes from work in invertebrates, wherein the germline stem cells produce oocytes continuously through adult development. In both inverbrates and vertebrates nutritional and signaling pathways control the regulation of stem cells in such a manner so as to couple production of gametes with the nutritional availability. Additionally, mature oocytes arrest both in meiosis I and meiosis II, and signaling and nutritional pathways have been shown to regulate their formation, and maintenance, such that despite long periods of arrest, the oocyte quality is assured and errors in chromosome segregation and varied cytoplasmic events are minimal.
