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Mitochondrial Haplotypes Influence Metabolic Traits in Porcine Transmitochondrial Cybrids.


ABSTRACT: In farm animals, mitochondrial DNA mutations exist widely across breeds and individuals. In order to identify differences among mtDNA haplotypes, two porcine transmitochondrial cybrids were generated by fusion of a Lantang pig cell line devoid of mitochondrial DNA with enucleated cytoplasm from either a Large White pig or a Xiang pig harboring potentially divergent mitochondrial haplotypes. These cybrid cells were subjected to mitochondrial genome sequencing, copy number detecting and analysis of biochemical traits including succinate dehydrogenase (SDH) activity, ATP content and susceptibility to reactive oxygen species (ROS). The Lantang and Xiang mitochondrial genomes were highly homologous with only 18 polymorphic sites, and differed radically from the Large White with 201 and 198 mutations respectively. The Large White and Xiang cybrids exhibited similar mtDNA copy numbers and different values among biochemical traits, generated greater ROS production (P?

SUBMITTER: Yu G 

PROVIDER: S-EPMC4541322 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature

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Mitochondrial Haplotypes Influence Metabolic Traits in Porcine Transmitochondrial Cybrids.

Yu Guanghui G   Xiang Hai H   Tian Jianhui J   Yin Jingdong J   Pinkert Carl A CA   Li Qiuyan Q   Zhao Xingbo X  

Scientific reports 20150819


In farm animals, mitochondrial DNA mutations exist widely across breeds and individuals. In order to identify differences among mtDNA haplotypes, two porcine transmitochondrial cybrids were generated by fusion of a Lantang pig cell line devoid of mitochondrial DNA with enucleated cytoplasm from either a Large White pig or a Xiang pig harboring potentially divergent mitochondrial haplotypes. These cybrid cells were subjected to mitochondrial genome sequencing, copy number detecting and analysis o  ...[more]

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