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4mo ago

Picuris Pueblo-Led DNA Study Confirms Ancestral Ties to Chaco Canyon

Groundbreaking research validates oral histories, establishes a model for Indigenous-led science, and strengthens the tribe's voice in preservation policy.

Tourists view Pueblo Bonito, one of a series of Puebloan structures in Chaco Culture National Historical Park believed to have been used as ceremonial as well as administrative and trading centers and built over multiple decades between the 9th and 12 centuries, in Chaco Canyon, New Mexico, U.S. October 21, 2021. REUTERS/Dan Grebler/File Photo
Tourists view Pueblo Bonito, one of a series of Puebloan structures in Chaco Culture National Historical Park believed to have been used as ceremonial as well as administrative and trading centers and built over multiple decades between the 9th and 12 centuries, in Chaco Canyon, New Mexico, U.S. October 21, 2021. REUTERS/Dan Grebler/File Photo
Image of a large, circular, below-ground area surrounded by very finely crafted stone walls. Other ruins are in the background.
Tourists view Pueblo Bonito, one of a series of Puebloan structures in Chaco Culture National Historical Park believed to have been used as ceremonial as well as administrative and trading centers and built over multiple decades between the 9th and 12 centuries, in Chaco Canyon, New Mexico, U.S. October 21, 2021. REUTERS/Dan Grebler/File Photo

Overview

  • The Picuris Pueblo tribe collaborated with geneticists to confirm a direct ancestral link to Chaco Canyon through DNA analysis of 16 ancient and 13 modern individuals.
  • Published in Nature, the study marks the first Indigenous-led ancient DNA research, with the tribe retaining full control over data and methodology.
  • Findings validate Picuris oral histories and challenge theories of a complete regional exodus after Chaco Canyon's decline around 1150 AD.
  • The study provides new evidence for the tribe's efforts to influence policy debates over oil and gas drilling near the UNESCO World Heritage site.
  • This collaboration sets a precedent for ethical partnerships between Indigenous communities and scientists, emphasizing respect and data sovereignty.