of the Jomon is heterogeneous, and it may be indicative of diverse peoples who possibly belonged to a common culture, known as the Jomon". Genetics Full genome analyses in 2020 and 2021 revealed further information regarding the origin of the Jōmon peoples. The genetic results suggest early admixture between different groups in Japan already during the Paleolithic, followed by constant geneflow from coastal East Asian groups, resulting in a heterogeneous population which then homogenized until the arrival of the Yayoi people. Geneflow from Northeast Asia during the Jōmon period is associated geneflow from the Tibetan Plateau and Southern China is associated with the D1a2a (previously D1b) and D1a1 (previously D1a) lineages. Geneflow from ancient Siberia was also detected into the northern Jōmon people of Hokkaido, with later geneflow from Hokkaido into parts of northern Honshu (Tohoku). The lineages K and F are suggested to have been presented during the early Jōmon period but got replaced by C and D. The genetic evidence suggests that an East Asian source population, near the Himalayan mountain range, contributed ancestry to the Jōmon period population of Japan, and less to ancient Southeast Asians. The authors concluded that this points to an inland migration through southern or central China towards Japan during the Paleolithic. Another ancestry component seem to have arrived from Siberia into Hokkaido. Archeological and biological evidence link the southern Jōmon culture of Kyushu, Shikoku and parts of Honshu to cultures of southern China and Northeast India. A common culture, known as "Broadleaved Evergreen Forest Culture", ranged from southwestern Japan through southern China towards Northeast India and southern Tibet, and was characterized by the cultivation of Azuki beans. Another study, published in the Cambridge University Press in 2020, concluded that there was also a migration of ancient Northeast Asians at approximately 6000BC (or already at ~10,000BC), which introduced the Incipient Jōmon culture, typified by early ceramic cultures such as the ones found at Ōdai Yamamoto I Jōmon Site or Aoyagamiji site in the Tottori prefecture. The authors argue that this migration may be the source of the Japonic languages rather than the later Yayoi migration. A 2021 study concluded that the Jōmon people descended from a common Basal-East Asian source population in Mainland Southeast Asia, which also gave rise to the other East Asian-related populations. The Jōmon people however became isolated from other East Asians on the Japanese archipelago at about 15,000 BCE,