Few Nuclear-Encoded Mitochondrial Gene Duplicates Contribute to Male Germline-Specific Functions in Humans

Abstract excerpt

Most of the genes encoding proteins that function in the mitochondria are located in the nucleus and are called nuclear-encoded mitochondrial genes, or N-mt genes. In Drosophila melanogaster , about 23% of N-mt genes fall into gene families, and all duplicates with tissue-biased expression (76%) are testis biased. These genes are enriched for energy-related functions and tend to be older than other duplicated...

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