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After the 2011 Fukushima disaster, escaped domestic pigs interbred with wild boar, creating a large‑scale hybrid population in the evacuation zone. A new study in the Journal of Forest Research shows that maternal pig lineages, identified by mitochondrial DNA, trigger rapid generational turnover, quickly diluting pig nuclear DNA. The accelerated breeding cycle of domestic pigs, inherited through the maternal line, compressed several generations into a few years, leaving hybrids several generations removed from the original cross. Researchers say this mechanism could reshape wildlife genetics wherever domestic and wild swine meet.
Researchers at Israel's Volcani Center used CRISPR/Cas9 to inactivate the 1,2RhaT gene in Citrus paradisi, effectively halting production of bitter compounds such as naringin, neohesperidin, and poncirin in leaf tissue. The gene edit eliminates the bitter taste pathway, and the...
Researchers have identified a new giant DNA virus, ushikuvirus, isolated from a freshwater pond near Tokyo. The virus infects the amoeba Vermamoeba vermiformis and carries a full complement of eukaryote‑like histone genes. Unlike its relative medusavirus, ushikuvirus destroys the host...
