Volume 24 Issue 5
Sep.  2003
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SHI Yan-feng, SHAN Xiang-nian, LI Jian, ZHANG Hai-jun, ZHENG Ai-ling. Phylogenetic Relationships of Seven Cetartiodactyla Species Inferred from Mitochondrial Genome. Zoological Research, 2003, 24(5): 331-336.
Citation: SHI Yan-feng, SHAN Xiang-nian, LI Jian, ZHANG Hai-jun, ZHENG Ai-ling. Phylogenetic Relationships of Seven Cetartiodactyla Species Inferred from Mitochondrial Genome. Zoological Research, 2003, 24(5): 331-336.

Phylogenetic Relationships of Seven Cetartiodactyla Species Inferred from Mitochondrial Genome

  • Received Date: 1900-01-01
  • Rev Recd Date: 1900-01-01
  • Publish Date: 2003-10-22
  • Using the mitochondrial genomes of the muntjak (Cervidae:Muntiacus) sequenced by our lab.and 6 other species of Cetartiodactyla obtained from the GenBank,we calculated the sequence lengths and base compositions of their individual concatenated sequences of 13 amino acid sequences,13 protein-coding genes,2 rRNA genes,22 tRNA genes and control region.Sequence differences of protein-coding genes between cow/sheep,sheep/muntjak and muntjak/cow were analysed and genetic distances of the concatenated 12S rRNA and 16S rRNA genes among the 7 Cetartiodactyla species were calculated with MEGA.Based on the contatenated sequences of 13 inferred amino acid sequences of protein-coding genes,we constructed the phylogenetic tree with Neighbor-joining method,and discussed their phylogenetic relationships.Our results show:1)those species are divided into 3 clades which are a muntjak-sheep-cow clade,a pig-alpaca clade and a hippopotamus-whale clade;sheep and muntjak are first grouped into one branch and then cow is added to them;2)there is a closer relationship between muntjak and sheep than that betweeen muntjak and cow;3)the divergence between the muntjak and sheep lineages occurred at 14.7 million years ago and the one between the muntjak and cow lineages did at 16.0 million years ago.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Phylogenetic Relationships of Seven Cetartiodactyla Species Inferred from Mitochondrial Genome

Abstract: Using the mitochondrial genomes of the muntjak (Cervidae:Muntiacus) sequenced by our lab.and 6 other species of Cetartiodactyla obtained from the GenBank,we calculated the sequence lengths and base compositions of their individual concatenated sequences of 13 amino acid sequences,13 protein-coding genes,2 rRNA genes,22 tRNA genes and control region.Sequence differences of protein-coding genes between cow/sheep,sheep/muntjak and muntjak/cow were analysed and genetic distances of the concatenated 12S rRNA and 16S rRNA genes among the 7 Cetartiodactyla species were calculated with MEGA.Based on the contatenated sequences of 13 inferred amino acid sequences of protein-coding genes,we constructed the phylogenetic tree with Neighbor-joining method,and discussed their phylogenetic relationships.Our results show:1)those species are divided into 3 clades which are a muntjak-sheep-cow clade,a pig-alpaca clade and a hippopotamus-whale clade;sheep and muntjak are first grouped into one branch and then cow is added to them;2)there is a closer relationship between muntjak and sheep than that betweeen muntjak and cow;3)the divergence between the muntjak and sheep lineages occurred at 14.7 million years ago and the one between the muntjak and cow lineages did at 16.0 million years ago.

SHI Yan-feng, SHAN Xiang-nian, LI Jian, ZHANG Hai-jun, ZHENG Ai-ling. Phylogenetic Relationships of Seven Cetartiodactyla Species Inferred from Mitochondrial Genome. Zoological Research, 2003, 24(5): 331-336.
Citation: SHI Yan-feng, SHAN Xiang-nian, LI Jian, ZHANG Hai-jun, ZHENG Ai-ling. Phylogenetic Relationships of Seven Cetartiodactyla Species Inferred from Mitochondrial Genome. Zoological Research, 2003, 24(5): 331-336.

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