By Nanette Pazdernik, Tim Schedl (auth.), Tim Schedl (eds.)
Germ cells in sexually reproducing metazoa, throughout the germline lineage, are the path in which genetic fabric and cytoplasmic elements are handed from one new release to the subsequent within the continuum of lifestyles. Chapters during this e-book overview germ mobile improvement within the version organism Caenorhabditis elegans, discussing the biology, the genetics and the molecular mechanisms for varied techniques, in addition to drawing comparisons with different organisms. procedures mentioned contain specification of germ phone destiny, meiosis, gametogenesis, environmental/ physiological controls, epigenetics and translational regulate, fertilization and the oocyte-to-embryo transition. This publication hence offers a finished photograph of the germline lineage and the continuum of lifestyles for the worm.
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Additional info for Germ Cell Development in C. elegans
Development 135:1303–1313. 019075 Capowski EE, Martin P, Garvin C, Strome S (1991) Identification of grandchildless loci whose products are required for normal germ-line development in the nematode Caenorhabditis elegans. Genetics 129:1061–1072 Cheeks RJ, Canman JC, Gabriel WN et al (2004) C. elegans PAR proteins function by mobilizing and stabilizing asymmetrically localized protein complexes. Curr Biol 14:851–862. 1016/j Cuenca AA, Schetter A, Aceto D et al (2003) Polarization of the C. elegans zygote proceeds via distinct establishment and maintenance phases.
2 Asymmetric Segregation of P Granules: Not Essential? The P granules are the only components of the germ plasm that persist in all germ cells throughout the development (except in sperm, Updike and Strome 2010). P or “germ” granules have been observed in the germ plasm and/or germ cells of all animals examined (Strome and Lehmann 1997). By electron microscopy in zygotes, P granules appear as round, electron-dense structures without membranes and dispersed throughout the cytoplasm (Wolf et al. 1983).
Curr Biol 10:R81–R83 Paulsen JE, Capowski EE, Strome S (1995) Phenotypic and molecular analysis of mes-3, a maternal-effect gene required for proliferation and viability of the germ line in C. elegans. Genetics 141:1383–1398 Pellettieri J, Reinke V, Kim SK, Seydoux G (2003) Coordinate activation of maternal protein degradation during the egg-to-embryo transition in C. elegans. Dev Cell 5:451–462 Petrella LN, Wang W, Spike CA et al (2011) synMuv B proteins antagonize germline fate in the intestine and ensure C.