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Poultry Breeding and Genetics
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Poultry Breeding and Genetics

A special issue of Genes (ISSN 2073-4425). This special issue belongs to the section "Animal Genetics and Genomics".

Deadline for manuscript submissions: closed (20 April 2024) | Viewed by 2457

Special Issue Editor

Dr. Hong Li

E-Mail Website
Guest Editor
College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China
Interests: chicken; gene expression regulation; meat quality traits; growth traits; reproductive traits; lipid metabolism; cell biology; molecular biology

Special Issue Information

Dear Colleagues,

As a major source of protein in our daily diet, chicken meat and eggs are widely consumed due to their high quality and low cost. Poultry breeding and genetics have experienced rapid advancement since the completion of the chicken genome sequence in 2004, and they have been extensively used to understand the genetic determinants of complex traits. With the development of high-throughput sequencing technology, molecular biology, bioinformatics and genetics, the genetic basis and regulation mechanism of important economic traits in poultry including reproductive traits, meat quality, growth traits, disease resistance, and other important traits have attracted attention and witnessed remarkable progress through the use of multi-omics (genome, epigenome, transcriptome, proteome, and metabolome), 3D genomics, Hi-C and so on.  However, much of their detailed regulatory mechanism is unknown. Genes is now inviting submissions for a Special Issue on the topic of “Poultry Breeding and Genetics”. The contents cover genetic variation detection, selection methods for breeding, transgenesis and genome editing, the genetic basis of disease resistance, control of gene expression and regulation, reproduction and meat quality, etc. Research articles, reviews, short communications, brief reports, and other forms of original articles on this topic are all welcome. The hope is that this Special Issue will open new avenues to discover the theoretical and practical aspects of poultry phenotype traits and provide valuable information for poultry breeding projects.

Dr. Hong Li
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Genes is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • poultry
  • gene expression regulation
  • RNA-seq
  • genomics
  • growth traits
  • reproductive traits
  • meat quality traits
  • cell biology
  • molecular biology

Published Papers (2 papers)

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Research

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12 pages, 2048 KiB  
Article
Genetic Architecture of Abdominal Fat Deposition Revealed by a Genome-Wide Association Study in the Laying Chicken
by Jun Guo, Liang Qu, Dan Shao, Qiang Wang, Yongfeng Li, Taocun Dou, Xingguo Wang, Yuping Hu and Haibing Tong
Genes 2024, 15(1), 10; https://0-doi-org.brum.beds.ac.uk/10.3390/genes15010010 - 20 Dec 2023
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Abstract
Fat has a high energy density, and excessive fatness has been recognized as a problem for egg production and the welfare of chickens. The identification of a genetic polymorphism controlling fat deposition would be helpful to select against excessive fatness in the laying [...] Read more.
Fat has a high energy density, and excessive fatness has been recognized as a problem for egg production and the welfare of chickens. The identification of a genetic polymorphism controlling fat deposition would be helpful to select against excessive fatness in the laying hen. This study aimed to estimate genomic heritability and identify the genetic architecture of abdominal fat deposition in a population of chickens from a Dongxiang blue-shelled local breed crossbred with the White Leghorn. A genome-wide association study was conducted on abdominal fat percentage, egg production and body weights using a sample of 1534 hens genotyped with a 600 K Chicken Genotyping Array. The analysis yielded a heritability estimate of 0.19 ± 0.04 for abdominal fat percentage; 0.56 ± 0.04 for body weight at 72 weeks; 0.11 ± 0.03 for egg production; and 0.24 ± 0.04 for body weight gain. The genetic correlation of abdominal fat percentage with egg production between 60 and 72 weeks of age was −0.35 ± 0.18. This implies a potential trade-off between these two traits related to the allocation of resources. Strong positive genetic correlations were found between fat deposition and weight traits. A promising locus close to COL12A1 on chromosome 3, associated with abdominal fat percent, was found in the present study. Another region located around HTR2A on chromosome 1, where allele substitution was predicted to be associated with body weight gain, accounted for 2.9% of phenotypic variance. Another region located on chromosome 1, but close to SOX5, was associated with egg production. These results may be used to influence the balanced genetic selection for laying hens. Full article
(This article belongs to the Special Issue Poultry Breeding and Genetics)
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Review

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13 pages, 2155 KiB  
Review
Genomic Insights into Molecular Regulation Mechanisms of Intramuscular Fat Deposition in Chicken
by Yuzhu Cao, Yuxin Xing, Hongbo Guan, Chenglin Ma, Qihui Jia, Weihua Tian, Guoxi Li, Yadong Tian, Xiangtao Kang, Xiaojun Liu and Hong Li
Genes 2023, 14(12), 2197; https://0-doi-org.brum.beds.ac.uk/10.3390/genes14122197 - 10 Dec 2023
Viewed by 1300
Abstract
Intramuscular fat (IMF) plays an important role in the tenderness, water-holding capacity, and flavor of chicken meat, which directly affect meat quality. In recent years, regulatory mechanisms underlying IMF deposition and the development of effective molecular markers have been hot topics in poultry [...] Read more.
Intramuscular fat (IMF) plays an important role in the tenderness, water-holding capacity, and flavor of chicken meat, which directly affect meat quality. In recent years, regulatory mechanisms underlying IMF deposition and the development of effective molecular markers have been hot topics in poultry genetic breeding. Therefore, this review focuses on the current understanding of regulatory mechanisms underlying IMF deposition in chickens, which were identified by multiple genomic approaches, including genome-wide association studies, whole transcriptome sequencing, proteome sequencing, single-cell RNA sequencing (scRNA-seq), high-throughput chromosome conformation capture (HiC), DNA methylation sequencing, and m6A methylation sequencing. This review comprehensively and systematically describes genetic and epigenetic factors associated with IMF deposition, which provides a fundamental resource for biomarkers of IMF deposition and provides promising applications for genetic improvement of meat quality in chicken. Full article
(This article belongs to the Special Issue Poultry Breeding and Genetics)
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