scholarly journals Unravelling spiral cleavage

Development ◽  
2020 ◽  
Vol 147 (1) ◽  
pp. dev181081 ◽  
Author(s):  
José M. Martín-Durán ◽  
Ferdinand Marlétaz
Keyword(s):  
Spiral Cleavage

scholarly journals Analysis and simulations of spiral cleavage

1989 ◽  
Vol 27 ◽  
pp. 19
Author(s):  
M.J.M. de Boer ◽  
A. Lindenmayer
Keyword(s):  
Spiral Cleavage

scholarly journals Spiral cleavage and early embryology of a loxosomatid entoproct and the usefulness of spiralian apical cross patterns for phylogenetic inferences

2012 ◽  
Vol 12 (1) ◽  
pp. 11 ◽  
Author(s):  
Julia Merkel ◽  
Tim Wollesen ◽  
Bernhard Lieb ◽  
Andreas Wanninger
Keyword(s):  
Spiral Cleavage

Micromere lineages in the glossiphoniid leechHelobdella

Development ◽  
2002 ◽  
Vol 129 (3) ◽  
pp. 719-732 ◽  
Author(s):  
Françoise Z. Huang ◽  
Dongmin Kang ◽  
Felipe-Andres Ramirez-Weber ◽  
Shirley T. Bissen ◽  
David A. Weisblat
Keyword(s):  
Early Development ◽  
Normal Development ◽  
The Other ◽  
Small Cells ◽  
Spiral Cleavage ◽  
Helobdella Robusta

In leech embryos, segmental mesoderm and ectoderm arise from teloblasts by lineages that are already relatively well characterized. Here, we present data concerning the early divisions and the definitive fate maps of the micromeres, a group of 25 small cells that arise during the modified spiral cleavage in leech (Helobdella robusta) and contribute to most of the nonsegmental tissues of the adult. Three noteworthy results of this work are as follows. (1) The c′′′ and dm′ clones (3d and 3c in traditional nomenclature) give rise to a hitherto undescribed network of fibers that run from one end of the embryo to the other. (2) The clones of micromeres b′′ and b′′′ (2b and 3b in traditional nomenclature) die in normal development; the b′′ clone can be rescued to assume the normal c′′ fate if micromere c′′ or its clone are ablated in early development. (3) Two qualitative differences in micromere fates are seen between H. robusta (Sacramento) and another Helobdella sp. (Galt). First, in Helobdella sp. (Galt), the clone of micromere b′′ does not normally die, and contributes a subset of the cells arising exclusively from c′′ in H. robusta (Sacramento). Second, in Helobdella sp. (Galt), micromere c′′′ makes no definitive contribution, whereas micromere dm′ gives rise to cells equivalent to those arising from c′′′ and dm′ in H. robusta (Sacramento).

scholarly journals Diaphanous gene mutation affects spiral cleavage and chirality in snails

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Reiko Kuroda ◽  
Kohei Fujikura ◽  
Masanori Abe ◽  
Yuji Hosoiri ◽  
Shuichi Asakawa ◽  
...  
Keyword(s):  
Gene Mutation ◽  
Spiral Cleavage

Mesentoblast and Trochoblast Specification in Species With Spiral Cleavage Predict Their Phyletic Relations

1995 ◽  
Vol 46 (1-2) ◽  
pp. 8-21 ◽  
Author(s):  
André E. Van Loon ◽  
Wim G.M. Damen ◽  
Jo A.M. Van Den Biggelaar
Keyword(s):  
Spiral Cleavage

Loxosomella decorata n. sp., a new solitary entoproct from San Juan Island, WA, USA

Zootaxa ◽  
2017 ◽  
Vol 4238 (4) ◽  
pp. 594
Author(s):  
CLAUS NIELSEN
Keyword(s):  
New Species ◽  
San Juan ◽  
Spiral Cleavage ◽  
New Localities ◽  
The Subject ◽  
A New Species

Several species of solitary entoprocts of the genera Loxosoma and Loxosomella occur on maldanid polychaetes or in their tubes (Nielsen 1964). New species turn up almost every time maldanids from new localities are studied, and the species described below has been the subject of a study of spiral cleavage (Merkel et al. 2012). This paper describes a new species of Loxosomella from tubes of the maldanid polychaete Axiothella rubrocincta (Johnson, 1901) from False Bay, San Juan Island, WA, USA. 

scholarly journals Investigation of the Cytoskeletal Dynamics during Spiral Cleavage

2017 ◽  
Vol 145 ◽  
pp. S60
Author(s):  
Yu-Wen Hsieh ◽  
Mette Handberg-Thorsager ◽  
Pavel Tomancak
Keyword(s):  
Spiral Cleavage ◽  
Cytoskeletal Dynamics
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