Temporal colinearity in expression of anterior hox genes in developing chick embryos
نویسندگان
چکیده
منابع مشابه
Gastrulation and homeobox genes in chick embryos
We review the early stages of chick embryogenesis, in particular the formation of the hypoblast, and the ingression of endoderm and mesoderm through the primitive streak. The formation of a trilaminar embryo during gastrulation is accompanied by the specification of body axes. The first axis is already present in the unfertilized egg and runs from the cytoplasmatic animal to the yolk rich veget...
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During mammalian fetal development, axial structures acquire their specifications through the action of the Hox gene family of transcription factors (for review, see Krumlauf 1994). These are 39 such genes that are responsible for giving spatially restricted cues in a variety of embryonic derivatives, from the neural tube to the intestinal tract. In presomitic mesoderm, for example, level-speci...
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Higher vertebrates appear to possess six genes encoding a homeodomain of the distal-less type. We report the cloning and expression pattern of the chicken DLX3 gene, a homeobox gene highly related to the DLX5 gene with regard to both the encoded protein structure and the expression pattern. DLX3 RNA was observed during the development of the olfactory and otic placodes, in the distal portion of...
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Developing chick embryos are highly susceptible to infection with strains on V. cholerae representing Gardner and Venkatraman's 6 groups and the types Inaba and Ogawa. There is a moderate decrease in susceptibility with advancing age of the embryo. The influence of dosage on survival rates is not marked, probably because a minimal dose, consisting of a very few organisms, is sufficient to produ...
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Background Little is understood about the regulation of gene expression during early goat embryo development. This study investigated the expression profile of 19 genes, known to be critical for early embryo development in mouse and human, at five different stages of goat in vitro embryo development (oocyte, 8-16 cell, morula, day-7 blastocyst, and day 14 blastocyst). MaterialsAndMethods Stage-...
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ژورنال
عنوان ژورنال: Developmental Dynamics
سال: 1996
ISSN: 1058-8388,1097-0177
DOI: 10.1002/(sici)1097-0177(199611)207:3<270::aid-aja4>3.0.co;2-e