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Single Nucleotide Polymorphisms of Candidate Genes Related to Egg Production Traits in Vietnamese Indigenous Chickens

Vinh, NT; Giang, NTP; Linh, NV; Dang, PK; Cahn, NX; Giang, NTC; Doan, BH; Anh, NT; Thinh, NH.
Rev. bras. ciênc. avic; 23(2)abr. 2021.
Artigo em Inglês | LILACS-Express | ID: biblio-1490857


ABSTRACT The objective of this work was to detect single nucleotide polymorphisms (SNPs) in two candidate genes known to relate with reproductive traits in Vietnamese chicken. Two indigenous breeds Ri and Mia chickens were used for genotyping 4 SNPs namely intron 1 of growth hormon gene (GH), exon 5 of prolactin receptor gene (PRLR5), a 24 bp nucleotide sequence insertion-deletion at situation -358 in 5- untranslated region of prolatin gene (PRL24); and at site C2404T of prolactin gene (PRL2402). It was shown that the SNP sites of these candidate genes were identified in two local breeds. Three genotypes of each loci were found (AA, AB and BB for GH; II, ID and DD for 24 bp indel of PRL and CC, CT and TT for PRL2402), except only genotypes of AA and BB of PRLR5 were detected (no heterozygous genotype of AB). The frequencies of the desired genotypes of AA (GH), BB (PRLR5), II (PRL24) and CC (PRL2402) were low in both indigenous Ri and Mia chickens. Based on this study it could be suggested that the study on association between these loci with egg production traits and the selection to increase the desired genotype frequency in poputions are necessary to improve egg production of Ri and Mia chickens.
Biblioteca responsável: BR68.1