Special Issue "Improvements of Performance Traits Using Genetics and Genomics in Poultry"

A special issue of Animals (ISSN 2076-2615). This special issue belongs to the section "Animal Genetics and Genomics".

Deadline for manuscript submissions: 31 March 2024 | Viewed by 572

Special Issue Editor

Division of Animal & Dairy Science, College of Agriculture and Life Sciences, Chungnam National University, Daejeon 34134, Korea
Interests: poultry; genetics; genomics; breeding; performance; population and evolutionary genetics; marker assisted selection (MAS); genome wide association study (GWAS)
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Special Issue Information

Dear Colleagues,

Poultry species are very important for providing meat and eggs to human and their productions have been dramatically increased worldwide. Since the poultry species were domesticated, humans give lots of efforts for selection and breeding of the poultry species, mostly for the production traits, such as body weight and egg production. Recently, there are still lots of traits, which need to be improved including biochemical compounds and egg/meat quality traits. Also, new investigation is ultimately needed for the native poultry breeds, indicating their use of further breeding program including disease resistance traits. Therefore, the performance traits covering in the special issue are very diverse from the conventional productions traits to new traits affecting the poultry production.

Since the publication of the chicken genome in 2004, Researches, using the developed technology, of the Poultry Genetics and Genomics have been also dramatically improved. However, there are numerous poultry production traits with an unknown genetic background. With the high-throughput genetic and genomic techniques available today, the research community has the possibility to also unravel the complex production traits for the poultry. Therefore, This Special Issue in “Animals” will highlight the improvements of performance traits in poultry using cutting-edge of genetics and genomics technology. This Issue also will provide an overview of recent developments in this field of research, including perspectives on current and upcoming challenges. In this Special Issue, original research articles and reviews are welcome.

I look forward to receiving your contributions.

Prof. Dr. Jun–Heon Lee
Guest Editor

Manuscript Submission Information

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Published Papers (1 paper)

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Genome-Wide Association Study on the Content of Nucleotide-Related Compounds in Korean Native Chicken Breast Meat
Animals 2023, 13(18), 2966; https://doi.org/10.3390/ani13182966 - 20 Sep 2023
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Meat flavor is an important factor that influences the palatability of chicken meat. Inosine 5′-monophosphate (IMP), inosine, and hypoxanthine are nucleic acids that serve as taste-active compounds, mainly enhancing flavor in muscle tissue. For this study, we performed a genome-wide association study (GWAS) [...] Read more.
Meat flavor is an important factor that influences the palatability of chicken meat. Inosine 5′-monophosphate (IMP), inosine, and hypoxanthine are nucleic acids that serve as taste-active compounds, mainly enhancing flavor in muscle tissue. For this study, we performed a genome-wide association study (GWAS) using a mixed linear model to identify single-nucleotide polymorphisms (SNPs) that are significantly associated with changes in the contents of the nucleotide-related compounds of breast meat in the Korean native chicken (KNC) population. The genomic region on chicken chromosome 5 containing an SNP (rs316338889) was significantly (p < 0.05) associated with all three traits. The trait-related candidate genes located in this significant genomic region were investigated through performing a functional enrichment analysis and protein–protein interaction (PPI) database search. We found six candidate genes related to the function that possibly affected the content of nucleotide-related compounds in the muscle, namely, the TNNT3 and TNNT2 genes that regulate muscle contractions; the INS, IGF2, and DUSP8 genes associated with insulin sensitivity; and the C5NT1AL gene that is presumably related to the nucleotide metabolism process. This study is the first of its kind to find candidate genes associated with the content of all three types of nucleotide-related compounds in chicken meat using GWAS. The candidate genes identified in this study can be used for genomic selection to breed better-quality chickens in the future. Full article
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