Impact of Patrilocality on Contrasting Patterns of Paternal and Maternal Heritage in Central-West Africa

Overview

Journal Sci Rep

Specialty Science

Date 2024 Jul 8

PMID 38977763

Authors

Masinda Nguidi

Veronica Gomes

Carlos Vullo

Pedro Rodrigues

Martina Rotondo

Micaela Longaray

Laura Catelli

Beatriz Martinez

Afonso Campos

Elizeu Carvalho

Victoria O Orovboni

Samuel O Keshinro

Filipa Simao

Leonor Gusmao

Affiliations

Soon will be listed here.

Abstract

Despite their ancient past and high diversity, African populations are the least represented in human population genetic studies. In this study, uniparental markers (mtDNA and Y chromosome) were used to investigate the impact of sociocultural factors on the genetic diversity and inter-ethnolinguistic gene flow in the three major Nigerian groups: Hausa (n = 89), Yoruba (n = 135) and Igbo (n = 134). The results show a distinct history from the maternal and paternal perspectives. The three Nigerian groups present a similar substrate for mtDNA, but not for the Y chromosome. The two Niger-Congo groups, Yoruba and Igbo, are paternally genetically correlated with populations from the same ethnolinguistic affiliation. Meanwhile, the Hausa is paternally closer to other Afro-Asiatic populations and presented a high diversity of lineages from across Africa. When expanding the analyses to other African populations, it is observed that language did not act as a major barrier to female-mediated gene flow and that the differentiation of paternal lineages is better correlated with linguistic than geographic distances. The results obtained demonstrate the impact of patrilocality, a common and well-established practice in populations from Central-West Africa, in the preservation of the patrilineage gene pool and in the affirmation of identity between groups.

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