Meiotic chromosomes in motion: a perspective from Mus musculus and Caenorhabditis elegans. 2019

Jana Link, and Verena Jantsch
Department of Chromosome Biology, Max F. Perutz Laboratories, Vienna Biocenter, University of Vienna, 1030, Vienna, Austria. jana.link@univie.ac.at.

Vigorous chromosome movement during the extended prophase of the first meiotic division is conserved in most eukaryotes. The movement is crucial for the faithful segregation of homologous chromosomes into daughter cells, and thus for fertility. A prerequisite for meiotic chromosome movement is the stable and functional attachment of telomeres or chromosome ends to the nuclear envelope and their cytoplasmic coupling to the cytoskeletal forces responsible for generating movement. Important advances in understanding the components, mechanisms, and regulation of chromosome end attachment and movement have recently been made. This review focuses on insights gained from experiments into two major metazoan model organisms: the mouse, Mus musculus, and the nematode, Caenorhabditis elegans.

UI MeSH Term Description Entries
D008540 Meiosis A type of CELL NUCLEUS division, occurring during maturation of the GERM CELLS. Two successive cell nucleus divisions following a single chromosome duplication (S PHASE) result in daughter cells with half the number of CHROMOSOMES as the parent cells. M Phase, Meiotic,Meiotic M Phase,M Phases, Meiotic,Meioses,Meiotic M Phases,Phase, Meiotic M,Phases, Meiotic M
D002875 Chromosomes In a prokaryotic cell or in the nucleus of a eukaryotic cell, a structure consisting of or containing DNA which carries the genetic information essential to the cell. (From Singleton & Sainsbury, Dictionary of Microbiology and Molecular Biology, 2d ed) Chromosome
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D016615 Telomere A terminal section of a chromosome which has a specialized structure and which is involved in chromosomal replication and stability. Its length is believed to be a few hundred base pairs. Telomeres
D017173 Caenorhabditis elegans A species of nematode that is widely used in biological, biochemical, and genetic studies. Caenorhabditis elegan,elegan, Caenorhabditis
D049469 Meiotic Prophase I The prophase of the first division of MEIOSIS (in which homologous CHROMOSOME SEGREGATION occurs). It is divided into five stages: leptonema, zygonema, PACHYNEMA, diplonema, and diakinesis. Leptotene Stage,Zygotene Stage,Diakinesis,Diplonema,Diplotene Stage,Meiotic Prophase 1,Prophase 1,Prophase I,Zygonema,Diakineses,Diplonemas,Prophase I, Meiotic,Stage, Diplotene,Stage, Leptotene,Stage, Zygotene,Stages, Zygotene,Zygonemas,Zygotene Stages
D051379 Mice The common name for the genus Mus. Mice, House,Mus,Mus musculus,Mice, Laboratory,Mouse,Mouse, House,Mouse, Laboratory,Mouse, Swiss,Mus domesticus,Mus musculus domesticus,Swiss Mice,House Mice,House Mouse,Laboratory Mice,Laboratory Mouse,Mice, Swiss,Swiss Mouse,domesticus, Mus musculus
D020090 Chromosome Segregation The orderly segregation of CHROMOSOMES during MEIOSIS or MITOSIS. Chromosome Segregations,Segregation, Chromosome,Segregations, Chromosome
D023902 Chromosome Pairing The alignment of CHROMOSOMES at homologous sequences. Synapsis,Synapsis, Chromosomal,Chromosomal Synapsis,Chromosome Pairings

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