Overview
- The University of Minnesota team published a preprint and launched a public-benefit group called Biotic to share methods and invite reproduction of the SpudCell work.
- SpudCell is built from liposome membranes plus about 36 engineered genes arranged on seven DNA plasmids and performs feeding, genome replication, growth and membrane-driven division.
- The construct uses externally supplied ribosomes and nutrient-filled feeder liposomes, has a roughly 90 kilobase-pair fragmented genome, and normally fails after about five to ten generations.
- Researchers deliberately introduced a genetic change that boosted a membrane-fusion protein and showed that the faster-growing variant outcompeted the original population in about five generations, demonstrating short-term selection but not open-ended evolution.
- The team says current biosafety risk is low, practical applications remain years away, and independent peer review, replication and shared standards are being urged before the work is treated as an engineering platform.