Estimation of inbreeding through marital isonymy in the Maya community of Chicán, Yucatan, Mexico

Authors

  • Laura Reina Taño Portuondo Universidad Autónoma de Yucatán https://orcid.org/0009-0004-8010-3428
  • Igrid García González Biomedicos de Mérida, Laboratorio de Análisis clínicos, México https://orcid.org/0000-0002-1570-4938
  • Damaris Estrella Castillo University Rehabilitation Unit, School of Medicine, Universidad Autónoma de Yucatán, Mexico https://orcid.org/0000-0001-9381-8263
  • Doris Del Carmen Pinto Escalante Dr. Hideyo Noguchi Regional Research Center, Faculty of Chemistry, Universidad Autónoma de Yucatán, Mexico https://orcid.org/0000-0002-5220-4246
  • Orlando Vargas Sierra Dr. Hideyo Noguchi Regional Research Center, Faculty of Chemistry, Universidad Autónoma de Yucatán, Mexico https://orcid.org/0000-0001-8072-919X
  • Rodrigo Rubi Castellanos Dr. Hideyo Noguchi Regional Research Center, Faculty of Chemistry, Universidad Autónoma de Yucatán, Mexico https://orcid.org/0000-0002-5990-8326
  • Andrés Colli Ucán Police station on duty in Chican, Tixmehuac, Mexico
  • Jorge Canto Herrera AYPRODA. Mérida, Yucatán, México
  • Regina Vianey Baas https://orcid.org/0009-0009-5504-504X
  • Alejandro José Gómez García Centro de Investigación Científica de Yucatán, Biotechnology Unit, México https://orcid.org/0000-0001-7545-0813
  • Lizbeth Josefina González Herrera Dr. Hideyo Noguchi Regional Research Center, Faculty of Chemistry, Universidad Autónoma de Yucatán, México https://orcid.org/0000-0002-8620-3954

DOI:

https://doi.org/10.31048/1852.4826.v17.n2.44361

Keywords:

Inbreeding, Isonymy, Surnames, Chicán, Deafness

Abstract

Chicán is a small rural community of Mayan origin located in the Yucatan Peninsula, known as “the village of the deaf” due to the high prevalence of profound deafness. The objective of this study was to determine the inbreeding coefficient in the Chicán community using the method of marital isonymy as a strategy to explain the population structure and the high prevalence of profound congenital deafness. Data collection was conducted through surveys of 219 individuals residing in Chicán. Forty different surnames were recorded, with 30 of them being of Mayan origin. 23.3% of the sample presented isonymous surnames, with Collí (94.1%) being the most frequent. The inbreeding coefficient observed was 0.0585, while the random component (Fr = 0.0571) was 38 times greater than the non-random component (Fn = 0.0015). Eighteen individuals with profound congenital deafness were recorded, of whom 11 were isonymous for the surname Collí. The results indicate that consanguineous unions in Chicán are primarily due to the small population size and its relative isolation. The high prevalence of profound deafness in Chicán may be a consequence of consanguinity, which predisposes to the appearance of recessive hereditary disorders.

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Published

2024-08-28

Issue

Section

Biological Anthropology

How to Cite

Taño Portuondo, L. R., García González , I., Estrella Castillo, D., Pinto Escalante, D. D. C., Vargas Sierra, O., Rubi Castellanos , R., Colli Ucán, A., Canto Herrera, J., Vianey Baas, R., Gómez García , A. J., & González Herrera, L. J. (2024). Estimation of inbreeding through marital isonymy in the Maya community of Chicán, Yucatan, Mexico. Revista Del Museo De Antropología, 17(2), 119-126. https://doi.org/10.31048/1852.4826.v17.n2.44361