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An Ancient DNA Perspective on Mound ...

Harrison, Jessica Lou.

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An Ancient DNA Perspective on Mound 72, Cahokia.

Record Type:	Electronic resources : Monograph/item
Title/Author:	An Ancient DNA Perspective on Mound 72, Cahokia./
Author:	Harrison, Jessica Lou.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2021,
Description:	206 p.
Notes:	Source: Dissertations Abstracts International, Volume: 82-11, Section: B.
Contained By:	Dissertations Abstracts International82-11B.
Subject:	Genetics. -
Online resource:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28493522
ISBN:	9798738632679

An Ancient DNA Perspective on Mound 72, Cahokia.
Harrison, Jessica Lou.

An Ancient DNA Perspective on Mound 72, Cahokia. - Ann Arbor : ProQuest Dissertations & Theses, 2021 - 206 p.

Source: Dissertations Abstracts International, Volume: 82-11, Section: B.

Thesis (Ph.D.)--Indiana University, 2021.

This item must not be sold to any third party vendors.

Located near current day St. Louis, Cahokia is classified as a UNESCO World Heritage Site and during its peak time of occupation (1050 to 1150 AD), Cahokia was over 5 square miles in size, contained more than 120 earthen mounds, included the largest pre-Columbian structure in North America, and housed as many as 15,000 people. Near 1050 AD, dramatic changes occurred in the lifeways of the people living throughout much of what is now the American Midwest. Communities suddenly increased in size, dependence upon maize agriculture, division of labor, and hierarchy, along with many other aspects of life, around the focal point of Cahokia. These changes marked the beginning of the Mississippian period (1050 to 1400 AD). The arrival of a new biologically distinct population has been proposed as an explanation for these cultural changes; while others suggest these changes were the result of in-situ developments, the result of culture contact or some combination.Dating to the beginning of the Mississippian transition, Mound 72 is a small ridge-top burial mound located south of central Cahokia that contained more than 270 burials. There were at least 25 burial assemblages that exhibit a variety of burial treatments that have encouraged many theories about their purpose and significance. Mitochondrial DNA was extracted from teeth and the haplogroup and partial haplotypes were determined for 24 individuals from 9 features within the burial mound. No discernable patterns between burial association, strontium values and haplogroup were present. Haplogroup frequency differences between low and high status burial group designations were noted, but were not statistically significant. The haplogroup frequencies and haplotype designations from Mound 72 were consistent with and statistically indistinguishable from previously characterized burial groups in the American Midwest. This is consistent with earlier interpretations of a panmictic Midwestern population and with lack of evidence for a Mississippian population replacement. Mitochondrial results are compared to previous dental metric evaluations of the burials, highlighting relative strengths of both methodologies. Finally, a discussion of the many factors that affect the preservation of ancient DNA is presented with an attempt at next-generation sequencing from the Mound 72 burials.

ISBN: 9798738632679Subjects--Topical Terms:

530508
Genetics.
Subjects--Index Terms:

Ancient DNA

An Ancient DNA Perspective on Mound 72, Cahokia.
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500 $a Source: Dissertations Abstracts International, Volume: 82-11, Section: B.
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520 $a Located near current day St. Louis, Cahokia is classified as a UNESCO World Heritage Site and during its peak time of occupation (1050 to 1150 AD), Cahokia was over 5 square miles in size, contained more than 120 earthen mounds, included the largest pre-Columbian structure in North America, and housed as many as 15,000 people. Near 1050 AD, dramatic changes occurred in the lifeways of the people living throughout much of what is now the American Midwest. Communities suddenly increased in size, dependence upon maize agriculture, division of labor, and hierarchy, along with many other aspects of life, around the focal point of Cahokia. These changes marked the beginning of the Mississippian period (1050 to 1400 AD). The arrival of a new biologically distinct population has been proposed as an explanation for these cultural changes; while others suggest these changes were the result of in-situ developments, the result of culture contact or some combination.Dating to the beginning of the Mississippian transition, Mound 72 is a small ridge-top burial mound located south of central Cahokia that contained more than 270 burials. There were at least 25 burial assemblages that exhibit a variety of burial treatments that have encouraged many theories about their purpose and significance. Mitochondrial DNA was extracted from teeth and the haplogroup and partial haplotypes were determined for 24 individuals from 9 features within the burial mound. No discernable patterns between burial association, strontium values and haplogroup were present. Haplogroup frequency differences between low and high status burial group designations were noted, but were not statistically significant. The haplogroup frequencies and haplotype designations from Mound 72 were consistent with and statistically indistinguishable from previously characterized burial groups in the American Midwest. This is consistent with earlier interpretations of a panmictic Midwestern population and with lack of evidence for a Mississippian population replacement. Mitochondrial results are compared to previous dental metric evaluations of the burials, highlighting relative strengths of both methodologies. Finally, a discussion of the many factors that affect the preservation of ancient DNA is presented with an attempt at next-generation sequencing from the Mound 72 burials.
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