Scientists grew algae on the ISS for 40 generations; spaceflight produced about 50% more DNA changes than on Earth |
Scientists have grown microscopic algae aboard the International Space Station to investigate how spaceflight affects their genetic stability. Space Algae-1 grew ultraviolet light-mutagenised Chlamydomonas reinhardtii in the ISS VEGGIE plant growth chamber for approximately 40 mitotic generations over one month. Whole-genome sequencing of pooled cell samples collected every 10 generations found that the spaceflight cultures…