QTL in chicken: a look back and forward − a review

Journal Title: Animal Science Papers and Reports - Year 2010, Vol 28, Issue 4

Abstract

Identification of genes determining the expression of economically important traits of plants and animals is a main research focus in agricultural genomics. Most of these traits are characterized by a wide variability of the expression of genes at certain loci called quantitative trait loci (QTL). Characterization of the chromosomal regions carrying QTL can be applied in marker-assisted selection (MAS) to improve breeding efficiency. Molecular linkage maps in combination with powerful statistical methods facilitate the genetic dissection of complex traits, and the chicken is ideally suited for this task due to a relatively short life cycle and large number of progeny. Two major approaches are employed in understanding the genomic architecture of economically important traits: QTL mapping and, more recently, functional genomics.

Authors and Affiliations

Alexei Sazanov, Anna Sazanova, Olga Borkova, Kazimierz Jaszczak

Keywords

Related Articles

Factors affecting genetic correlation estimates from dairy sires’ genetic evaluations to assess genotype-environment interaction

Effects of trait heritability (0.05 or 0.25), effective daughters number (30 to 500), sires number (10 to 500), and sire selection (selecting or not the top 50% sires), were evaluated based upon standard error (SE) and b...

SLC27A1 SNPs in relation to breeding value of milk production traits in Polish Holstein-Friesian cows

The aim of the study was to investigate associations between SLC27A1 genotypes and estimated breeding value of milk production traits (milk, fat and protein yield, kg; fat and protein content, %) in the Polish Holstein-F...

Immunohistochemical distribution of c-Kit and its gene expression via real-time PCR in skin tissue of goats with a black and white coat colour

The signaling pathway of the stem cell factor and its receptor, c-Kit, plays an important physiological role in melanogenesis. The expression of c-Kit was investigated using real-time quantitative PCR and immunohistochem...

Effects of GnRH agonist on reproductive functions of female rabbits

The physiological efficiency and mechanisms of action were studied of gonadotropin releasing hormone analogue (GnRH-A) on the reproductive functions of rabbits. Twenty-four female rabbits (Oryctolagus cuniculus) were ran...

A novel pig gene, FASTK, differentially expressed in the muscle tissues from Wujin and Large White pigs

The mRNA differential display technique was used to investigate gene expression differences in the longissimus dorsi muscle from Wujin and Large White pigs. A fragment of one differentially expressed gene was isolated an...

Download PDF file
  • EP ID EP71495
  • DOI -
  • Views 165
  • Downloads 0

How To Cite

Alexei Sazanov, Anna Sazanova, Olga Borkova, Kazimierz Jaszczak (2010). QTL in chicken: a look back and forward − a review. Animal Science Papers and Reports, 28(4), 307-314. https://europub.co.uk/articles/-A-71495