 The broader haplogroup R (M207) is a primary subclade of haplogroup P1 (M45) itself a primary branch of P (P295), which is also known as haplogroup K2b2.R-M207 is therefore a secondary branch of K2b (P331), and a direct descendant of K2 (M526).There was "an initial rapid diversification" of K-M526, according to Karafet et al.