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Keywords: cleavage
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Journal Articles
Journal Articles
Journal: Development
Development (2002) 129 (24): 5803–5813.
Published: 15 December 2002
...Karolina Piotrowska; Magdalena Zernicka-Goetz The first cleavage of the fertilised mouse egg divides the zygote into two cells that have a tendency to follow distinguishable fates. One divides first and contributes its progeny predominantly to the embryonic part of the blastocyst, while the other...
Includes: Supplementary data
Journal Articles
Journal: Development
Development (2002) 129 (4): 815–829.
Published: 15 February 2002
... Embryo Polarity Axis Cleavage Fertilisation Sperm The genesis of polarity * in the early embryo is crucial to development because it determines the body plan of the whole animal. Although in many species the polarity of the embryo takes its roots from the spatial patterning of the egg...
Journal Articles
Journal: Development
Development (1998) 125 (7): 1337–1346.
Published: 1 April 1998
... cleavages. During these divisions, the nuclear-centrosome complex appears unstable in position. In addition, in almost half of the mutant embryos, there are reversals of the normal pattern of spindle orientations at second cleavage: the spindle of the anterior cell is aligned with the long axis...
Journal Articles
Journal: Development
Development (1998) 125 (1): 143–150.
Published: 1 January 1998
...Dmitrii A. Voronov; Yuri V. Panchin ABSTRACT Early cleavages of the marine nematode Enoplus brevis are symmetrical and occur in synchrony. At the 2- to 16-cell stages, blastomeres are indistinguishable. The progeny of blastomeres was investigated by intracellular injections of fluorescent dyes...
Journal Articles
Journal Articles
Journal: Development
Development (1997) 124 (11): 2213–2223.
Published: 1 June 1997
... equatorial cleavage produces two tiers of sister cells called ‘veg1’ and ‘veg2,’ which were projected by early studies to be allocated to the ectoderm and endoderm, respectively. Recent in vitro studies have proposed that the segregation of veg1 and veg2 cells to distinct fates involves signaling between...
Journal Articles
Journal: Development
Development (1994) 120 (7): 1929–1935.
Published: 1 July 1994
... zygotes by the injection of antisense oligodeoxynucleotides arrests development prior to the first cell division. We show that single-stranded antisense oligodeoxynucleotides specifically block cleavage, and that injection of SpOct mRNA overcomes this block. The accumulation of [ 35 S]methionine...
Journal Articles
Journal: Development
Development (1993) 119 (2): 447–456.
Published: 1 October 1993
... the existence of a cell cycle oscillator, possibly similar to that found in early Xenopus cleavage-blocked eggs ( Hara et al., 1980 ). This oscillator in zebrafish has a 15 minute period, the cleavage cell cycle length and is capable of continuing long past the typical time of MBT ( Fig. 7 ). We show...
Journal Articles
Journal: Development
Development (1993) 117 (1): 75–87.
Published: 1 January 1993
...Evelyn Houliston; Danièle Carré; Jennifer A. Johnston; Christian Sardet ABSTRACT The single axis (oral-aboral) and two planes of symme-try of the ctenophore Beroe ovata become established with respect to the position of zygote nucleus formation and the orientation of first cleavage. Bisection...
Journal Articles
Journal: Development
Development (1992) 115 (2): 595–605.
Published: 1 June 1992
... 1 -integrin of the embryo. Until late blastula only small amounts of precursor are processed into the mature form. Starting with the formation of the first cleavage membrane, mature β 1 -integrin is inserted into the newly formed plasma membranes of all cells. The membrane domains forming the outer...
Journal Articles
Journal: Development
Development (1991) 111 (4): 845–856.
Published: 1 April 1991
... is initially most evident near the egg’s equator or marginal zone, extensive rearrangements associated with cleavage furrowing (cytoplasmic ingression) relocate portions of the swirl to vegetal blastomeres on the prospective dorsal side. * Corresponding author 14 12 1990 © 1991 by Company...
Journal Articles
Journal: Development
Development (1988) 104 (3): 415–422.
Published: 1 November 1988
...) but was possible throughout most of the first egg cycle. The cytoplasmic components required for cytokinesis seem to increase progressively during the first division cycle. Nuclear transfer experiments indicated that the timing of cleavage was normal only when the nucleus and egg cytoplasm were reassociated...
Journal Articles
Journal Articles
Journal: Development
Development (1986) 97 (Supplement): 15–29.
Published: 1 October 1986
...Susan Strome Copyright © 1986 by Company of Biologists 1986 Caenorhabditis elegans zygotes asymmetric movement cell fates cytoskeleton cleavage microfilament. One of the central problems facing developmental biologists is understanding how the unicellular zygote...
Journal Articles
Journal: Development
Development (1986) 92 (1): 71–84.
Published: 1 March 1986
...Lynne Selwood ABSTRACT The effect of destruction of some blastomeres on subsequent cleavage in vitro was investigated in the marsupial Antechinus stuartii . Blastomeres were killed by puncturing with a fine glass needle. The positions of the punctured and surviving blastomeres were recorded...
Journal Articles
Journal: Development
Development (1985) 90 (1): 223–232.
Published: 1 December 1985
...Richard P. Elinson; Eugenia M. Del Pino ABSTRACT The marsupial frog Gastrotheca riobambae has several reproductive adaptations, most prominent of which is the incubation of the embryo in a pouch on the mother’s back. We have followed cleavage and gastrulation by microscopical observation...
Journal Articles
Journal: Development
Development (1985) 87 (1): 175–206.
Published: 1 June 1985
... polypeptide and DNA synthesis cleavage mouse In the mouse egg, as in other animal species, the early events that take place following fertilization are largely, if not exclusively, under maternal control (reviewed by Davidson, 1976 , and Johnson, 1981 ; Woodland, Flynn & Wylie, 1979...
Journal Articles
Journal: Development
Development (1985) 85 (1): 21–31.
Published: 1 February 1985
...Hiromasa Ohshima; Tomoyuki Kubota ABSTRACT Scanning electron microscopic studies were carried out on changes of the cell surface during the first cleavage of eggs of the newt, Cynopus (Triturus) pyrrhogaster . A dense population of elongated microvilli, which initially covered a double line...
Journal Articles
Journal: Development
Development (1985) 85 (1): 33–46.
Published: 1 February 1985
...Atsunori Shinagawa ABSTRACT This paper investigates the localization within the Xenopus egg of the factors responsible for the periodic activities such as the cyclic rounding-up and flattening, related to the cleavage cycle. Denuded eggs were bisected along the boundary line between the animal...