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Segmentation (and eve ) in very odd insect embryos
Author(s) -
French Ver
Publication year - 1996
Publication title -
bioessays
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.175
H-Index - 184
eISSN - 1521-1878
pISSN - 0265-9247
DOI - 10.1002/bies.950180603
Subject(s) - insect , embryo , biology , segmentation , evolutionary biology , embryonic stem cell , embryogenesis , drosophila (subgenus) , polarity (international relations) , process (computing) , microbiology and biotechnology , zoology , anatomy , botany , genetics , cell , gene , artificial intelligence , computer science , operating system
The formation of segments in the Drosophila early embryo is understood in greater detail than any other complex developmental process. Now, by studying other types of insect embryo, we can hope to deduce something of the ancestral mechanism of segmentation and the ways in which it has been modified in evolution. The parasitic wasp, Copidosoma floridanum , is spectacularly atypical of insects in that the small egg cell divides extensively, with no initial syncytial phase, and forms eventually some 2000 embryos (1) . This process raises intriguing questions about the control of embryonic polarity and segmentation.