Phage-plasmid-like elements are found throughout diverse environments and encode niche-specific functional traits.
Mullet JI, Zhang L, Pruden A, Brown CL
Soil Health
Soil microbes under your garden beds are constantly swapping genetic tools—including antibiotic resistance and defensive weapons—through these hybrid elements, and understanding who carries what helps explain why some soils grow healthier plants than others.
Scientists found thousands of tiny genetic packages in nature that behave like both viruses and self-copying DNA at the same time. These packages show up everywhere—in soil, freshwater, plants, and even our bodies—and each environment's packages carry different specialized tools. The discovery helps explain how invisible soil life trades abilities and adapts to local conditions, which influences how well plants and ecosystems function.
Key Findings
5,712 unique phage-plasmid-like genomes were identified across nine distinct environment types including soil, freshwater, saltwater, and plant-associated niches.
Host-associated environments (human, animal, plant) contained the highest density of defense systems including CRISPR and anti-CRISPR genes, as well as antibiotic resistance genes.
Freshwater and saltwater environments preferentially encoded biosynthetic pathway components, suggesting niche-specific metabolic roles for these elements.
chevron_right Technical Summary
Researchers discovered over 5,700 unique hybrid genetic elements—called phage-plasmids—that blur the line between viruses and mobile DNA, found in environments ranging from soil and freshwater to plant and animal hosts. These elements carry environment-specific genes, suggesting they actively shape microbial communities across diverse ecosystems.
Abstract Preview
Phage-plasmids are unique mobile genetic elements that function as plasmids and temperate phages. While it has been observed that such elements often encode antibiotic resistance genes and defense ...
open_in_new Read full abstractAbstract copyright held by the original publisher.
Was this useful?
Chloroplast Genome Editing Eliminates Gluten Immunogenicity in Triticum aestivum
It could mean that people with celiac disease — roughly 1 in 100 worldwide — may one day safely eat bread made from real wheat, without sacrificing the taste...