Evolutionary Geography of macaques: Evolutioary History of east-west dispersal and iolation

2017 Fiscal Year Final Research Report

• Project/Area Number: 15H05243
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 海外学術
• Research Field: Physical anthropology
• Research Institution: Kyoto University
• Principal Investigator: HAMADA Yuzuru 京都大学, 霊長類研究所, 教授 (40172978)
• Co-Investigator(Kenkyū-buntansha): 川本 芳 京都大学, 霊長類研究所, 准教授 (00177750) ; 田中 洋之 京都大学, 霊長類研究所, 助教 (20335243)
• Research Collaborator: WAKAMORI Hikaru 京都大学, 霊長類研究所, 研究員(非常勤) (40825246) ; TANAKA Mikiko 京都大学, 霊長類研究所, 事務補佐員
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: マカク / 進化地理学 / アジア / ゲノム解析 / ブラマプートラ河 / 系統地理学 / コロブス

Outline of Final Research Achievements

Macaque dispersed from the east (East Asia / Southeast Asia) to the west (India and its vicinity). We elucidated the history of east-west dispersal beyond the barrier of Brahmaputra River (BR). Sinica species group had spread to the west and M. radiata and M. sinica diverged. Secondly the common ancestor of M. assamensis / thibetana dispersed into the west along the Himalaya, and introgressed to proto-radiata, originating M. a. pelops, M. munzala, and M. leucogenys. The ancestral population of M. leonina which had been distributed to the east side of BR was separated by the river-course change and the western moiety dispersed into the Indian Peninsula to diverge into M. silenus. The M. mulatta most recently dispersed to the west, both by a river-course change of BR and by crossing rivers (estuaries of Brahmaputra) along Himalaya Range. The taxa in the west tend to have longer tails than those in the east either by the retention of ancestral state or by the elongation (M. silenus).

Free Research Field

霊長類形態学