Alejandro Peñafiel-Ayala

This study identifies AtMsh1 as a mismatch-directed nuclease in Arabidopsis that facilitates DNA repair in organelles, reducing mutation rates.

This study shows that MSH1 promotes DNA double-strand breaks in Arabidopsis mitochondria triggered by uracil/guanine mismatches, supporting its role in maintaining genome integrity.

This study investigates the expansion of the MutS gene family in plants, identifying origins through gene duplication, endosymbiotic gene transfer, and horizontal gene transfer, and highlights their roles in organelle genetics.