Y-chromosomal diversity in Haiti and Jamaica: contrasting levels of sex-biased gene flow

American Journal of Physical Anthropology
T M SimmsR J Herrera

Abstract

Although previous studies have characterized the genetic structure of populations from Haiti and Jamaica using classical and autosomal STR polymorphisms, the patrilineal influences that are present in these countries have yet to be explored. To address this lacuna, the current study aims to investigate, for the first time, the potential impact of different ancestral sources, unique colonial histories, and distinct family structures on the paternal profile of both groups. According to previous reports examining populations from the Americas, island-specific demographic histories can greatly impact population structure, including various patterns of sex-biased gene flow. Also, given the contrasting autosomal profiles provided in our earlier study (Simms et al.: Am J Phys Anthropol 142 (2010) 49-66), we hypothesize that the degree and directionality of gene flow from Europeans, Africans, Amerindians, and East Asians are dissimilar in the two countries. To test this premise, 177 high-resolution Y-chromosome binary markers and 17 Y-STR loci were typed in Haiti (n = 123) and Jamaica (n = 159) and subsequently utilized for phylogenetic comparisons to available reference collections encompassing Africa, Europe, Asia (East and South), a...Continue Reading

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Jan 8, 2013·Homo : internationale Zeitschrift für die vergleichende Forschung am Menschen·Luz Angela Alonso, William Usaquén
Dec 3, 2014·Forensic Science International. Genetics·Jorge Mario CárdenasAntonio Salas
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Apr 5, 2013·American Journal of Physical Anthropology·Jada Benn TorresRick Kittles
May 28, 2021·American Journal of Human Biology : the Official Journal of the Human Biology Council·Irene Martín-TurreroMaría Dolores Marrodán Serrano

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