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261 Pages·1998·14.983 MB·English
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Genome Analysis in Eukaryotes Developmental and Evolutionary Aspects Genome Analysis in Eukaryotes Developmental and Evolutionary Aspects R.N. Chatterjee L. Sanchez Springer-Verlag Berlin Heidelberg GmbH EDITORS Dr. R.N. Chatterjee Department of Zoology, University of Calcutta Calcutta-700 073, India Dr. Lucas Sanchez Cenrtro Dr Investigaciones Biologicas (CSIC) Velaquez, Madrid, Spain Copyright © 1998 Springer-Verlag Berlin Heidelberg Originally published by Springer-Verlag Berlin Heidelberg New York in 1998 All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical. Photocopying. recording or otherwise. without the prior permission of the publisher Exclusive distribution in North America (including Canada and Mexico). Europe and Japan by Springer-Verlag Berlin Heidelberg GmbH All export rights for this book vest exclusively with Narosa Publishing House. Unauthorised export is a violation of Copyright Law and is subject to legal action ISBN 978-3-662-11831-3 ISBN 978-3-662-11829-0 (eBook) DOI 10.1007/978-3-662-11829-0 Preface The early development of different animals is extremely diverse with great variability in cell numbers and size, in rates of development, in cell lineage patterns etc. Differences and similarities in developmental strategies among organisms are stably transmitted in generation after generation. This is so because of the genetic control of developmental processes. Thus, it is the genes and their interactions that we should look for the underlying rules that govern development. These rules started to be understood through the genetic and molecular biology analyses of developmental processes in different organisms. Consequently, a comprehensive view about the mechanisms of how organisms are designed and built is emerging in recent years. In spite of the variability of developmental processes, some common genetic ·rules controlling these processes appear to be in action. In addition, the relationship between the processes of development in different types of embryos is a topic of great relevance to evolutionary genetics. The present volume focuses on an wide spectrum of topics ranging from !;ell cycle regulation to development and evolution. This book starts with an article of control of cell cycle proliferation during animal evolution and development by N.G. Brink (Chapter 1) showing how cell cycle proteins interact with the genes in different animals and the evolution of the cell cycle system in a multicellular organisms. Differentiation in Athalia rosae and Bombyx mori has surprising about to tell us about developmental patterns in the organism other than Drosophila. We also received very useful reviews of chapters from Laurie Tompkins, Pedro Santamaria, Roland Rosset, Pedro P. L6pez, Begona Granadino, Michele Thomas-Delaage, Neel B. Randsholt to include genetics of development, behaviour and evolution in Drosophila. The sex determination mechanism in Sciara has been reviewed by A.L.P. Perondini (Chapter 7). An evolutionary link between replication and the establishment of repressive chromatin structures has been reviewed elegantly by Francesco De Rubertis and Pierre Spierer (Chapter 10). Thus, we have been fortunate to have extraordinary cooperation from the research community. We appreciate the time and effort that these authors have invested in this book. Our hope is that this book can guide beginners all the way through a developmental aspect and evolution in animals and at the same time provide established investigators with new ideas and thoughts. Finally our appreciation are for Mis Narosa Publishing House, New Delhi, for their efforts in bringing out this volume in the present form. R.N. CHATTERJEE LUCAS SANCHEZ Contributors N.G. Brink School of Biological Sciences. The Flinders University of South Australia, Adelaide, Australia. R.N. Chatterjee Department of Zoology, University of Calcutta, 35 Ballygunge Circular Road, Calcutta - 7000 19, India. Francesco De Rubertis Department of Zoology and Animal Biology, University of Geneva, 30 quai Emest Ansermet, CH-1211 Geneva 4, Switzerland. K.P. Gopinatban Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore - 560012, India. Begoiia Granadino Centro de Investigaciones Biol6gicas, Velazquez 144, 28006 Madrid, Spain. Masatsugu Hatakeyama Department of Biology, Faculty of Science, Kobe University, Nada, Kobe 657, Japan. Omana Joy Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore - 560012, India. Pedro P. Lopez Centro de Investigaciones Biol6gicas, Velazquez 144, 28006 Madrid, Spain. Kugao Oishi Department of Biology, Faculty of Science, Kobe University, Nada, Kobe 657, Japan. A.L.P. Perondini Departamento de Biologia, Instituto de Biociencias, Universidade de Sao Paulo, C. Postal 11461, CEP 05422-970, Sao Paulo, Brazil. Neel B. Randsholt Centre de Genetique Moleculaire du C.N.R.S., F-91198 Gif sur Yvette Cedex, France. Roland Rosset Laboratoire de Genetique et Physiologie du Developement IBDM, Pare Scientifique de Luminy, CNRS Case 907, 13288 Marseille, Cedex 9, France. Lucas Sanchez Centro de Investigaciones Biol6gicas, Velazquez 144, 28006 Madrid, Spain. Pedro Santamaria Centre de Genetique Moleculaire du C.N.R.S., F-91198 Gif sur Yvette Cedex, France. Masami Sawa Department of Biology, Aichi University of Education, Kariya, Aichi 448, Japan. viii Contributors Amit Singh Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore - 560 012, India. Pierre Spiere Department of Zoology and Animal Biology, University of Geneva, 3D, quai Emest Ansermet, CH-1211, Geneva 4, Switzerland. Michele Thomas-Delaage Laboratoire de Genetique et Physiologie du Deve)opement IBDM, Pare Scientifique de Luminy, CNRS Case 907, 13288 Marseille Cedex 9, France. Laurie Tompkins Department of Biology, Temple University, Phiadelphia, Pennsylvania 19122, U.S.A. Contents Preface v Contributors VII 1. Control of Cell Proliferation During Animal Development and Evolution N.G. Brink 1 2. Maternal Information and Genetic Control of Oogenesis in Drosophila M. Thomas-Delaage and R. Rosset 28 3. Egg Maturation and Events Leading to Embryonic Development in the Sawfly. Athalia rosae (Hymenoptera) K. Oishi, M. Hatakeyama and M. Sawa 50 4. Developmental Aspects of Mulberry and Nonmulberry Silkworm Species: A comparative study K.P. Gopinathan, O. Jay and A. Singh 65 5. Early Events Associated with Sex Determination in Drosophila melanogaster L. Sanchez, P.P. L6pez and B. Granadino 98 6. The Development of Male- and Female-Specific Sexual Behaviour in Drosophila melanogaster L. Tompkins 120 7. Elimination of X Chromosomes and the Problem of Sex Determination in Sciara ocellaris A.L.P. Perondini 149 8. Mechanisms and Evolutionary Origins of Gene Dosage Compensation R.N. Chatterjee 167 9. On How the Memory of Determination is Kept and What May Happen to Forgetful Cells P. Santamaria and N.B. Randsholt 215 10. Operational Redundancy: An evolutionary link between replication and the establishment of repressive chromatin structures F.D. Rubertis and P. Spierer 237 INDEX 251 Genome Analysis in Eukaryotes: Developmental and evolutionary aspects R.N. Chatterjee and L. Sanchez (Eds) Copyright © 1998 Narosa Publishing House. New Delhi. India 1. Control of Cell Proliferation During Development and Animal Evolution N.G Brink School of Biological Sciences. The Flinders University of South Australia Adelaide. Australia I. Introduction It is not the purpose of this chapter to review the cell cycle and the role of cell division within this cycle since the task would be gigantic and in addition most aspects of this complex cellular process have been extensively reviewed by a number of authors in recent years. However, I will briefly summarize the main molecular genetic controls which operate during the cell cycle and accompanying cell division and then discuss how far these control mechanisms have been conserved during the evolution of multicellular animals. I will review the variations in this control process which have occurred in a range of multicellular animals from simple marine invertebrates to complex vertebrate systems, and will only make reference to the extensive yeast literature (reviewed in Nurse, 1990; Forsburg and Nurse, 1991) where it is relevant to this review. I will not consider plants as there are some differences in cell division which probably arose early in evolution and do not easily fit into a discussion of cell proliferation control in animals. All multicellular animals commence development as a single celled zygote following fertilization. This zygote divides many times to produce a mature adult which may have as few as 959 cells as in Caenorhabditis elegans. to as many as 1015 cells in most mammals. Although the origin of multicellular animals is still a matter of debate, it is likely that they either arose following cellularization of a multinucleate cytoplasm in a free swimming ciliate or the association of free swimming flagellates into a colony followed by subsequent diversification of these cells (see Hanson, 1977 for review). Animals with two cell layers (diploblasts) arose from a single celled ancestor whilst animals with three cell layers (triploblasts) either arose from these diploblasts or independently from a single celled ancestor. Based on molecular evidence, Christen et al (1991) suggest the latter alternative is more likely. During late pre-Cambrian (about 680 million years ago) both diploblastic and triploblastic forms probably co-existed side by side. They may have separated from a common ancestor some 800 million years ago (reviewed 2 BRINK by Conway Morris, 1993) although based on the evidence from the Burgess Shales there may have been an explosion in diversity which generated all major body plans around 570 million years ago (see Levinton, 1992; Gould, 1994 for discussion). Whatever, the temporal interrelationships between the diploblastic and triploblastic animals, cell division and cell differentiation are common to both. If these two groups arose from a common ancestor and there was a sudden explosion in body forms giving rise to all the present day Phyla, then cell proliferation mechanisms, which are highly ordered genetically controlled processes essential for survival, are likely to be shared by all animals indicating a high degree of evolutionary conservation. The evidence supporting this will be reviewed in this chapter. Dillon (1960) reported that nuclear organization during cell division was established in unicellular ciliates except for the formation of astral rays which are confined to metazoans. Kubai (1975) and Health (1980) have extensively reviewed mitosis in single celled eukaryotes and find the basic process of cell division is conserved although there is some diversity which probably arose during the evolution of these cells from prokaryote ancestors. In metazoan animals, cell division is initiated in the oocyte following fertilization and many division cycles subsequently take place during the cleavage stages of embryogenesis. Because cleavage cycles are rapid and highly ordered, both spatially and temporally, they are excellent systems for examining genetic control of the cell cycle. Several animal species ranging across the phylogenetic tree have served as model systems in these studies. In mammals, on the other hand, as it is difficult to isolate and manipulate the early embryos, studies of the cell cycle usually involve the use of cultured cells or cycling in the haemopoietic cell lineage (see McConnell, 1991 for review). A brief description of embryonic cleavage cycles in several animals is given in the following section. II. Cleavage Cycles Amongst multicellular animals in which cleavage patterns have been studied in any detail, it appears that marine invertebrates (e.g. Arbacia, Strongylocentrotus, Asterina, Ilyanassa and some other molluscs) as well as nematodes (e.g. Caenorhabditis), have highly predictable and invariant cleavage which results in groups of cells having specified fates by virtue of their position (see Davidson, 1986). Davidson further describes cleavage in vertebrate embryos (e.g. Xenopus) as variable due to specification of particular blastomeres depending on their position within the embryo. This also applies to Drosophila and other insects where cleavage is syncitiai. The detailed mechanism of sea urchin cleavage has been discussed elsewhere (see Horstadius, 1973; Cameron and Davidson, 1991 for reviews). Cleavage is described as radial. The first two cleavage divisions are meridional and at right angles to each other with the third division being equatorial thereby producing eight equal sized blastomeres, an upper tier and a lower Control of Cell Proliferation During Animal Development and Evolution 3 tier each containing four blastomeres. During the fourth cleavage the animal quartet of cells (upper tier) each undergo a meridional division producing a single layer of eight equal sized mesomeres. On the other hand, in the vegetal quartet of cells, the division spindle forms off centre because of the asymmetrically placed nucleus producing four larger macromeres on top of four micromeres. This division is equatorial. The three cell types have different developmental fates (Davidson, 1986). During the fifth cleavage cycle all cells undergo an equatorial division. The mesomeres divide to produce two tiers of eight cells and the macromeres yield two tiers of four equal sized cells. However, in the micromeres the spindle is placed off centre producing four large micromeres and four small micromeres with these two groups of cells having different fates (Khaner and Wilt, 1991). This division occurs slightly later than the other divisions. The seventh cleavage is meridional producing an embryo with 128 cells. All division cycles up to the tenth, when gastrulation begins, are synchronous, with S (DNA synthesis) alternating with M (mitotic division) and with no distinct gap periods (G1 or G2) separating them. Since spindles always form in this manner it suggests that the cytoskeleton must respond either to some internal or external cues to regulate spindle orientation. However, this orientation is not necessary for normal development since application of pressure which alters spindle orientations does not prevent normal pluteus larvae being formed (see Horstadius, 1973). In the starfish, Asterina, as well as the sea cucumber Synapta, the pattern of cleavage is slightly different (Dan-Sohkawa, 1976; Dan-Sohkawa and Satoh, 1978; Mita, 1983). The first three cleavages are similar to that in sea urchins, the fourth division is meridional, the fifth equatorial with the plane of subsequent divisions alternating up until the tenth when gastrulation begins. All cells are of equal size. The ten cycles are synchronous and lack gap periods. The cell cycle time is about 35 minutes. In echinoderms, it has been proposed that cleavages are regulated by a timing mechanism which is controlled by the nucleo-cytoplasmic ratio since half embryos begin asynchronous cleavages one cycle earlier (Mita, 1983). Spiral cleavage is observed in case of molluscs. Here successive tiers of cells in an embryo do not have their axis of division perpendicular or parallel to the existing layer of cells, rather are acute angles generating tiers of cells in spirals. This cleavage pattern is also common amongst annelids. The limpet Patella vulgata illustrates the basic pattern of cleavage (van den Bigelaar, 1977). After an initial lag period of about two hours following fertilization, the egg divides to produce two equal sized blastomeres. Subsequent divisions occur every 30 minutes until the fifth cleavage after which cycles lengthen and become asynchronous because the group of cells begin to differentiate. The third cleavage is asymmetrical yielding four micromeres at the animal pole and four macromeres at the vegetal pole. The third and subsequent cleavage divisions are radial. In the freshwater

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