Abstract:
:Interleukin-15 (IL-15) is a cytokine that has been proposed to modulate skeletal muscle and adipose tissue mass. In the present study, an F(2) resource population of Gushi chickens crossed with Anka broilers was used to investigate the genetic effects of the chicken IL-15 gene. Two single nucleotide polymorphisms (SNPs) (g.31224G>A and g.31266T>G) were identified in exon 5 of the IL-15 gene by means of polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) and DNA sequencing. Associations between the two SNPs and chicken fatness and muscle fiber traits were determined using linkage disequilibrium, haplotype construction, and association analysis. Both of the SNPs were associated with abdominal fat weight, leg muscle fiber diameter, and leg muscle fiber density (p < 0.05). Haplotypes of the two linked SNPs were associated with abdominal fat weight, fat thickness under the skin, and leg muscle fiber diameter (p < 0.05). The results suggested that the IL-15 gene might be associated with the causative mutation or the quantitative trait locus (QTL) controlling the fatness traits and muscle fiber traits in chickens.
journal_name
J Appl Genetjournal_title
Journal of applied geneticsauthors
Lv SJ,Su L,Li H,Han RL,Sun GR,Kang XTdoi
10.1007/s13353-012-0111-3subject
Has Abstractpub_date
2012-11-01 00:00:00pages
443-8issue
4eissn
1234-1983issn
2190-3883journal_volume
53pub_type
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