China is one of the most abundant chicken resources in the world. The local chicken breeds in the "Chinese livestock and poultry genetic resources Chronicles" have reached 107. In this paper, the nonlinear growth models have been briefly summarized and recent advances studies using Bertalanffy and Logistic Growth Curve Fitting Model in Chicken have also been reviewed. The significance and problems existing in the study of Bertalanffy and Logistic Growth Curve Fitting Model in Chicken in terms of future chicken research and breeding work were also discussed.
Restriction site-associated DNA sequencing (RAD-seq) is a critical enabling genotyping method based on whole-genome restriction sites developed on the basis of second-generation sequencing and nowadays is widely applicable to a variety of biological problems in many species where traditional cytogenetic methods have failed. As sequencing costs have dropped, RAD-Seq has moved from being primarily a SNP discovery tool to being a method for high-throughput genotyping of populations. In this paper, the main technical processes of RAD-seq has been briefly summarized and great potential will been hold to clarify more development and application in researches.
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