Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Critical Care giúp cho các bạn có thêm kiến thức về ngành y học đề tài: Chickens get their place in the sun. | Meeting report Chickens get their place in the sun Charalampos Rallis Address Developmental Genetics Laboratory London Research Institute Cancer Research UK London WC2A 3PX UK. Email Published 25 May 2007 Genome Biology 2007 8 306 doi gb-2007-8-5-306 The electronic version of this article is the complete one and can be found online at http 2007 8 5 306 2007 BioMed Central Ltd A report on the International Chick Meeting The Chick as a Model Organism Genes Development and Function Barcelona Spain 11-14 April 2007. The chicken was the first model organism in animal biology with a history of investigation stretching over 2 300 years and an unmatched contribution to biological concepts especially in developmental biology and immunology. In the late 20th century it lost some of its status to more genetically manipulatable organisms but recent advances in avian transgenesis and the availability of its complete genome sequence have put the chicken back in the mainstream. The first international chick meeting held in Barcelona recently brought together researchers from around the world who use the chicken as a model system and was designed to give as many young researchers as possible the opportunity to communicate their science. The conference covered a wide variety of subjects including immunology development genetics genomics bioinformatics and nutrition. Here I summarize a few of the advances in developmental biology reported at the meeting. The importance of timing Somite formation is a key developmental process that depends on timing. Along the antero-posterior axis of the embryo discrete blocks of mesoderm the somites arise in periodic fashion from an unsegmented tissue the pre-somitic mesoderm PSM and subsequently differentiate into vertebrae and the skeletal muscles of the trunk. The periodicity of somite formation is controlled by a molecular oscillator also known as the segmentation clock which is .
