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Journal of Animal and Veterinary Advances
Year: 2012  |  Volume: 11  |  Issue: 16  |  Page No.: 2945 - 2947

Transcriptomics Research in Chicken

Dongying Yang, Chen Gao, Lianqin Zhu, Ligang Tang, Juan Liu and Haisheng Nie    

Abstract: The chicken (Gallus gallus) is an important model organism in genetics, developmental biology, immunology and evolutionary research. Moreover, besides being an important model organism the chicken is also a very important agricultural species and an important source of food (eggs and meat). The availability of the draft chicken genome sequence provided many possibilities to in detail study a variety of genomic changes during evolution using a comparison between chicken and mammals. For example, compared to mammals, the use of a Z/W sex determination system is a special aspect of the avian genome where the female is the heterogametic sex (ZW) and the male is the homogametic (ZZ) sex. A comparison of the genomic sequences of platypus, chicken and human showed that sex chromosomes evolved separately in birds and mammals.

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