Talk:Chicken Development

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Note - This sub-heading shows an automated computer PubMed search using the listed sub-heading term. References appear in this list based upon the date of the actual page viewing. Therefore the list of references do not reflect any editorial selection of material based on content or relevance. In comparison, references listed on the content page and discussion page (under the publication year sub-headings) do include editorial selection based upon relevance and availability. (More? Pubmed Most Recent)

Chicken embryology

<pubmed limit=5>Chicken embryology</pubmed>

Chicken development

<pubmed limit=5>Chicken development</pubmed>

2012

Chicken primordial germ cells use the anterior vitelline veins to enter the embryonic circulation

Biol Open. 2012 Nov 15;1(11):1146-52. doi: 10.1242/bio.20122592. Epub 2012 Sep 18.

De Melo Bernardo A, Sprenkels K, Rodrigues G, Noce T, Chuva De Sousa Lopes SM. Source Department of Anatomy and Embryology, Leiden University Medical Center , Einthovenweg 20, 2333 ZC Leiden , The Netherlands.

Abstract

During gastrulation, chicken primordial germ cells (PGCs) are present in an extraembryonic region of the embryo from where they migrate towards the genital ridges. This is also observed in mammals, but in chicken the vehicle used by the migratory PGCs is the vascular system. We have analysed the migratory pathway of chicken PGCs, focusing on the period of transition from the extraembryonic region to the intraembryonic vascular system.Our findings show that at Hamburger and Hamilton developmental stage HH12-HH14 the majority of PGCs concentrate axially in the sinus terminalis and favour transport axially via the anterior vitelline veins into the embryonic circulation. Moreover, directly blocking the blood flow through the anterior vitelline veins resulted in an accumulation of PGCs in the anterior region and a decreased number of PGCs in the genital ridges. We further confirmed the key role for the anterior vitelline veins in the correct migration of PGCs using an ex ovo culture method that resulted in defective morphogenetic development of the anterior vitelline veins.We propose a novel model for the migratory pathway of chicken PGCs whereby the anterior vitelline veins play a central role at the extraembryonic and embryonic interface. The chicken model of PGC migration through the vasculature may be a powerful tool to study the process of homing (inflammation and metastasis) due to the striking similarities in regulatory signaling pathways (SDF1-CXCR4) and the transient role of the vasculature.

PMID 23213395

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3507194

http://bio.biologists.org/content/1/11/1146

2011

4D fluorescent imaging of embryonic quail development

Cold Spring Harb Protoc. 2011 Nov 1;2011(11):1291-4. doi: 10.1101/pdb.top066613.

Canaria CA, Lansford R.

Abstract

Traditionally, our understanding of developmental biology has been based on the fixation and study of embryonic samples. Detailed microscopic scrutiny of static specimens at varying ages allowed for anatomical assessment of tissue development. The advent of confocal and two-photon excitation (2PE) microscopy enables researchers to acquire volumetric images in three dimensions (x, y, and z) plus time (t). Here, we present techniques for acquisition and analysis of three-dimensional (3D) time-lapse data. Both confocal microscopy and 2PE microscopy techniques are used. Data processing for tiled image stitching and time-lapse analysis is also discussed. The development of a transgenic Japanese quail system, as discussed here, has provided an embryonic model that is more easily accessible than mammalian models and more efficient to breed than the classic avian model, the chicken.

PMID 22046043

• Analysis of retinal cell development in chick embryo by immunohistochemistry and in ovo electroporation techniques http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=2822752&tool=pmcentrez&rendertype=abstract