Genetic History of the Classic Period of Teotihuacan’s Burials in Central Mexico

Samudio, Ana Julia Aguirre; Sobrino, Blanca Zoila Gonzales; Sandoval, Brenda A. Álvarez; Montiel, Rafaél; Sánchez, Carlos Serrano; Peñaloza, Abigaíl Meza

doi:10.17139/raab.19.1.14

Cited by 7 publications

(7 citation statements)

References 16 publications

(23 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…While soil 87 Sr/ 86 Sr values in a given geologic zone may vary greatly due to the distinct strontium concentrations and weathering profiles of minerals in the underlying bedrock [34,71], only a proportion of soil strontium is available to plants. As such, plant 87 Sr/ 86 Sr values provide a consistent average of local bioavailable strontium within a 4, the Gulf Coast Plain (6), the Central Plateau (7), the Sierra Madre de Chiapas (10), and the Yucatán Platform (11). Sites included in the study are indicated by black dots.…”

Section: Sample Collectionmentioning

confidence: 99%

“…Researchers have long debated the importance of migration in the cultural development of central Mexico. A number of archaeological [1][2][3][4], morphological [5][6][7][8][9], and genetic [10][11], analyses indicate that the Basin of Mexico attracted multiple waves of migrants from across greater Mesoamerica throughout pre-Hispanic times. Biogeochemical studies of radiogenic strontium ( 87 Sr/ 86 Sr) isotopes have proven effective in directly testing the presence of migrants within the Basin, particularly at the Classic period city of Teotihuacan [12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Expanding radiogenic strontium isotope baseline data for central Mexican paleomobility studies

2020

View full text Add to dashboard Cite

Radiogenic strontium isotopes (87 Sr/ 86 Sr) have long been used in analyses of paleomobility within Mesoamerica. While considerable effort has been expended developing 87 Sr/ 86 Sr baseline values across the Maya region, work in central Mexico is primarily focused on the Classic period urban center of Teotihuacan. This study adds to this important dataset by presenting bioavailable 87 Sr/ 86 Sr values across central Mexico focusing on the Basin of Mexico. This study therefore serves to expand the utility of strontium isotopes across a wider geographic region. A total of 63 plant and water samples were collected from 13 central Mexican sites and analyzed for 87 Sr/ 86 Sr on a Thermo-Finnigan Neptune multi-collector inductively coupled plasma mass spectrometer (MC-ICP-MS). These data were analyzed alongside 16 published 87 Sr/ 86 Sr values from two additional sites within the region of interest. A five-cluster k-means model was then generated to determine which regions of the Basin of Mexico and greater central Mexico can and cannot be distinguished isotopically using 87 Sr/ 86 Sr values. Although the two clusters falling within the Basin of Mexico overlap in their local 87 Sr/ 86 Sr ranges, many locations within the Basin are distinguishable using 87 Sr/ 86 Sr values at the site-level. This study contributes to paleomobility studies within central Mexico by expanding knowledge of strontium isotope variability within the region, ultimately allowing researchers to detect intra-regional residential mobility and gain a greater understanding of the sociopolitical interactions between the Basin of Mexico and supporting outlying regions of central Mexico.

show abstract

Section: Sample Collectionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Expanding radiogenic strontium isotope baseline data for central Mexican paleomobility studies

2020

View full text Add to dashboard Cite

show abstract

“…This area used to be the homeland of several Mesoamerican civilisations, including the Classic city of Teotihuacan, the Epiclassic city of Cholula, and the Postclassic Toltec, Tepanec, and Aztec Empires [ 11 ]. Some aDNA studies have focused on this region, including individuals from the Postclassic period carrying haplogroups A and B at higher frequencies ( Table 2 ) [ 48 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 63 ].…”

Section: Basin Of Mexicomentioning

confidence: 99%

“…On the other hand, some neighbourhoods were multi-ethnic settlements. Aguirre-Samudio and colleagues [ 51 ] examined 36 individuals from three different multi-ethnic neighbourhoods (San Sebastián Xolalpan, La Ventilla, and San Francisco Mazapa). They found that the most frequent mtDNA haplogroup was A (58%), followed by haplogroups B (25%), C (14%), and D (3%).…”

Section: Basin Of Mexicomentioning

confidence: 99%

“…This area used to be the homeland of several Mesoamerican civilisations, including the Classic city of Teotihuacan, the Epiclassic city of Cholula, and the Postclassic Toltec, Tepanec, and Aztec Empires [11]. Some aDNA studies have focused on this region, including individuals from the Postclassic period carrying haplogroups A and B at higher frequencies (Table 2) [48,[50][51][52][53][54][55][56][57][58]63]. Interestingly, existing aDNA data come from the Central and Southeast areas of Mesoamerica, corresponding to the Basin of Mexico and the Yucatán Peninsula and its nearby territories, respectively.…”

Section: Basin Of Mexicomentioning

confidence: 99%

See 1 more Smart Citation

Ancient DNA Studies in Pre-Columbian Mesoamerica

Roca‐Rada

Souilmi

Teixeira

et al. 2020

Genes

View full text Add to dashboard Cite

Mesoamerica is a historically and culturally defined geographic area comprising current central and south Mexico, Belize, Guatemala, El Salvador, and border regions of Honduras, western Nicaragua, and northwestern Costa Rica. The permanent settling of Mesoamerica was accompanied by the development of agriculture and pottery manufacturing (2500 BCE–150 CE), which led to the rise of several cultures connected by commerce and farming. Hence, Mesoamericans probably carried an invaluable genetic diversity partly lost during the Spanish conquest and the subsequent colonial period. Mesoamerican ancient DNA (aDNA) research has mainly focused on the study of mitochondrial DNA in the Basin of Mexico and the Yucatán Peninsula and its nearby territories, particularly during the Postclassic period (900–1519 CE). Despite limitations associated with the poor preservation of samples in tropical areas, recent methodological improvements pave the way for a deeper analysis of Mesoamerica. Here, we review how aDNA research has helped discern population dynamics patterns in the pre-Columbian Mesoamerican context, how it supports archaeological, linguistic, and anthropological conclusions, and finally, how it offers new working hypotheses.

show abstract

Migration and biological continuity in central Mexico during the Classic‐Epiclassic transition

Pacheco‐Forés

Stojanowski

Morehart

2023

American Journal of Biological Anthropology

View full text Add to dashboard Cite

ObjectivesThe role of migration in the cultural development of central Mexico has long been debated. Archaeological models suggest that central Mexico likely experienced increased migration during the Epiclassic period (600–900 CE) and that migrants may have originated in northwestern Mexico. While previous biodistance analyses of Classic and Postclassic populations have come to similar conclusions, none have incorporated Epiclassic skeletal populations. This study uses multi‐scalar biodistance analyses to directly evaluate archaeological Epiclassic migration models within central Mexico.Materials and MethodsThis study uses finite mixture and relationship (R) matrix analyses of cervicometric tooth dimensions to reconstruct patterns of biological affinity among Classic and Epiclassic Mesoamerican populations (n = 333), including at the central Mexican Epiclassic shrine site of Non‐Grid 4 where the remains of at least 180 individuals were interred.ResultsEstimated inter‐site phenotypic distances demonstrate support for some degree of both biological continuity and extra‐local gene flow within central Mexican populations during the Classic‐Epiclassic transition. Furthermore, estimated phenotypic distances and finite mixture posterior probabilities indicate central Mexican Epiclassic populations were biologically diverse, originating from various source populations throughout Mesoamerica, including the Bajío region, the Malpaso Valley, and the Oaxaca Valley.DiscussionResults suggest that emphasizing both local and extra‐local gene flow rather than population replacement may be more appropriate to understand central Mexican population structure during the Classic‐Epiclassic transition. Moreover, analyses support previous archaeological migration models positing that Epiclassic migrants into central Mexico originated in northwestern Mexico, but also find evidence of Epiclassic migrants originating from previously unanticipated locales like southern Mexico.

show abstract

Genetic History of the Classic Period of Teotihuacan’s Burials in Central Mexico

Cited by 7 publications

References 16 publications

Expanding radiogenic strontium isotope baseline data for central Mexican paleomobility studies

Expanding radiogenic strontium isotope baseline data for central Mexican paleomobility studies

Ancient DNA Studies in Pre-Columbian Mesoamerica

Migration and biological continuity in central Mexico during the Classic‐Epiclassic transition

Contact Info

Product

Resources

About