How to build a ribosome from RNA fragments in Chlamydomonas mitochondria

Mitoribosomes are remarkably diverse in their structures and compositions. Here the authors combine biochemistry, genetics, single particle cryo-electron microscopy and in situ cryo-electron tomography to reveal the mitochondrial ribosome of Chlamydomonas reinhardtii as an extreme example of evolution and species-specific adaptation.