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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2010-1-5
pubmed:abstractText
In order to study genetic variation of tyrosinase gene in four different flesh color chicken breeds selected from special districts including Guyuan, Wenchang, Tibetan and Hisex chicken, five loci of the TYR gene exon-1 and one locus of 5' flanking region were analyzed in PCR-SSCP and DNA sequencing. The results indicated that there were polymorphisms only at TYR1 and TYR3 locus. At TYR1 locus located in exon-1, there were three genotypes (TT, CC, TC), respectively, in three Chinese chicken breeds, and Genotype CC had not been detected in Hisex chicken. At TYR3 locus located in 5' flanking region, there were three genotypes (GG, AA and GA) in Chinese local chicken breeds and genotype AA had not been detected in Hisex chicken breed. It was concluded that there were many variations of TYR gene in Chinese local chicken breeds. DNA sequencing of PCR products for different genotypes showed that there were two mutation sites, respectively, C to T at TYR1 locus and G to A at TYR3 locus. Mutation at TYR1 locus did not cause any amino acid variation. The chi-square analysis revealed that there were significant statistical differences generally between flesh color and the two loci among four chicken populations (P < 0.01). Our results suggested that the flesh color was related to genotype of TYR gene in Chinese chicken breeds. This study provided original information for elucidating the possible roles of exon-1 of TYR gene and 5' flanking region in chickens with different flesh color chicken.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
1573-4978
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
37
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
165-9
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
Flesh color association with polymorphism of the tyrosinase gene in different Chinese chicken breeds.
pubmed:affiliation
College of Animal Science and Technology, Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Shaanxi, China. zhangjianqin1206@yahoo.cn
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't