Functional Diversification of Replication Protein A Paralogs and Telomere Length Maintenance in Arabidopsis.

Replication protein A (RPA) is essential for many facets of DNA metabolism. The RPA gene family expanded in with five phylogenetically distinct RPA1 subunits (RPA1A-E), two RPA2 (RPA2A and B), and two RPA3 (RPA3A and B). RPA1 paralogs exhibit partial redundancy and functional specialization in DNA replication (RPA1B and RPA1D), repair (RPA1C and RPA1E), and meiotic recombination (RPA1A and RPA1C).