Genetic diversity and phylogenetic relationships of Romanian cattle breeds inferred from cytochrome b gene partial sequences

被引:0
|
作者
Xuan, Thieu Phan [1 ]
Georgescu, S. E. [1 ]
Manea, Maria Adina [1 ]
Hermenean, Anca Oana [2 ]
Costache, Marieta [1 ]
机构
[1] Univ Bucharest, Ctr Mol Biol, Bucharest, Romania
[2] Vasile Goldis Western Univ Arad, Arad, Romania
来源
ROMANIAN BIOTECHNOLOGICAL LETTERS | 2010年 / 15卷 / 02期
关键词
Cattle breeds; Cytochrome b gene; Genetic diversity; Phylogeny;
D O I
暂无
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
To determine the origin and genetic diversity of Romanian cattle breeds: Romanian Grey Steppe, Romanian Black Spotted, Romanian Brown and Montbeliarde, the partial Cyt b gene sequences (610bp) were analyzed. The average nucleotide frequencies of T, C, A and G were 27.3, 27.6, 30.9 and 14.2%, respectively. The nucleotide composition is rich in A/T nucleotides and shows a slightly higher A/T content (58.2%) than C/G content (41.8%). The nucleotide comparison also demonstrated a strong bias towards transition. A Neighbor-Joining tree was constructed and it revealed that the Romanian cattle breeds originated from Bos taurus and had no direct relationship with Bos indicus, Bos grunniens and Bos javanicus.
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页码:5154 / 5158
页数:5
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