Single-celled alga found to harbor seven genomes

 Originally published by by Bob Yirka , Phys.or, on April 28, 2023 

 

Microscopy of Cryptomonas gyropyrenoidosa SAG 25.80 with bacterial endosymbionts. (A) DIC; (B) DAPI; (C) FISH-M. polyxenophila probe; (D) FISH-G. numerosa probe; (E) overlay of (C) and (D); (F) endosymbionts clustered in the host cytoplasm, including endosymbionts with virus-like particles (Sv); (G) endosymbiont with virus-like particles within the bacterial cytoplasm and attached to the bacterial cell’s surface (arrowhead); and (H) bacterial endosymbionts and a membrane-like structure (i.e., putative autolysosome vacuole) that potentially contains virus-like particles (arrowhead). Credit: Current Biology (2023). DOI: 10.1016/j.cub.2023.04.010

An international team of oceanographers, parasitologists and biologists has found that the single-celled alga Cryptomonas gyropyrenoidosa harbors seven genomes in its one cell. In their study, reported in the journal Current Biology, the group explored how one cell could hold more than one set of DNA and isolated seven of them in C. gyropyrenoidosa. 

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