... of N. coriiceps and Chionodraco rastrospinosus , which lacks Hb, but whose heart expresses Mb. Despite differences in mitochondrial volume density between hearts of N. coriiceps and C. aceratus , the levels of transcripts of the genes encoding PGC-1α, NRF-1 and citrate synthase, and the copy number...

... quantified ultrastructural features and enzymatic indices of metabolic capacity in cardiac muscle from Gobionotothen gibberifrons , which expresses both Hb and Mb, Chionodraco rastrospinosus , which lacks Hb but expresses Mb, and Chaenocephalus aceratus , which lacks both Hb and Mb. The most striking...