Racial Experience as an Alternative Operationalization of Race

The study of human variation is central to both social and biomedical sciences; however, despite agreeing that variation is integral to the human experience, social and biomedical scientists diverge in how variation is theorized and operationalized. Race becomes especially problematic because it is a cultural concept that contains implicit and explicit understandings of how collective bodies differ. In this paper, we propose an operationalization of race that is attentive to both racial experience and human biological diversity—placing them within the same ontological sphere. Furthermore, we argue that this approach can more effectively advance antiracist pedagogy and politics. We argue that human biological diversity does not have to be in opposition to constructivist notions of race. Rather, racial experience is emphasized as an embodied experience that is as real and as valid as biological variation. By focusing on both racial experience and biological diversity, it becomes more feasible to operationalize race and to more fruitfully inform the pedagogy and politics of anti-racism. In such an operationalization, racial experience must be more broadly conceived, that is, it should not always equate to negative outcomes. With the recognition that racial experience has the potential to be something other than damaging, an antiracist anthropology can more effectively address issues pertaining to racial health disparities

Y Chromosome Lineages in Men of West African Descent

The early African experience in the Americas is marked by the transatlantic slave trade from ∼1619 to 1850 and the rise of the plantation system. The origins of enslaved Africans were largely dependent on European preferences as well as the availability of potential laborers within Africa. Rice production was a key industry of many colonial South Carolina low country plantations. Accordingly, rice plantations owners within South Carolina often requested enslaved Africans from the so-called “Grain Coast” of western Africa (Senegal to Sierra Leone). Studies on the African origins of the enslaved within other regions of the Americas have been limited. To address the issue of origins of people of African descent within the Americas and understand more about the genetic heterogeneity present within Africa and the African Diaspora, we typed Y chromosome specific markers in 1,319 men consisting of 508 west and central Africans (from 12 populations), 188 Caribbeans (from 2 islands), 532 African Americans (AAs from Washington, DC and Columbia, SC), and 91 European Americans. Principal component and admixture analyses provide support for significant Grain Coast ancestry among African American men in South Carolina. AA men from DC and the Caribbean showed a closer affinity to populations from the Bight of Biafra. Furthermore, 30–40% of the paternal lineages in African descent populations in the Americas are of European ancestry. Diverse west African ancestries and sex-biased gene flow from EAs has contributed greatly to the genetic heterogeneity of African populations throughout the Americas and has significant implications for gene mapping efforts in these populations

‘Reparational’ Genetics: Genomic Data and the Case for Reparations in the Caribbean

Drawing on my population genomic research among several Caribbean communities, I consider how ongoing Caribbean reparations movements index genomic information. Specifically, I examine the intersection between genetic ancestry and calls for reparatory justice to gain insight into the ways that scientific data are utilized in social articulations of both racial and indigenous identity. I argue that when contextualized within complex historical and cultural frameworks, the application of genomic data complicates notions about biological continuity and belonging, yet is compatible with broader conceptualizations of how people imagine themselves and histories in relation to geographic origins

Racial Experience as an Alternative Operationalization of Race

The study of human variation is central to both social and biomedical sciences, but social and biomedical scientists diverge in how variation is theorized and operationalized. Race is especially problematic because it is a cultural concept that contains implicit and explicit understandings of how collective bodies differ. In this moderately updated article, originally published in Human Biology in 2015 (vol. 87, no. 4, pp. 306–312), we propose an operationalization of race that addresses both racial experience and human biological diversity, placing them within the same ontological sphere. Furthermore, this approach can more effectively advance antiracist pedagogy and politics. We argue that human biological diversity does not have to be in opposition to constructivist notions of race. Rather, racial experience is emphasized as an embodied experience that is as real and as valid as biological variation. By focusing on both racial experience and biological diversity, it becomes more feasible to operationalize race to fruitfully inform the pedagogy and politics of antiracism. To do so, racial experience must be more broadly conceived and should not always equate to negative outcomes. With the recognition that racial experience has the potential to be something other than damaging, an antiracist anthropology can more effectively address issues pertaining to racial health disparities

Y Chromosome Lineages in Men of West African Descent

The early African experience in the Americas is marked by the transatlantic slave trade from ~1619 to 1850 and the rise of the plantation system. The origins of enslaved Africans were largely dependent on European preferences as well as the availability of potential laborers within Africa. Rice production was a key industry of many colonial South Carolina low country plantations. Accordingly, rice plantations owners within South Carolina often requested enslaved Africans from the so-called ‘‘Grain Coast’’ of western Africa (Senegal to Sierra Leone). Studies on the African origins of the enslaved within other regions of the Americas have been limited. To address the issue of origins of people of African descent within the Americas and understand more about the genetic heterogeneity present within Africa and the African Diaspora, we typed Y chromosome specific markers in 1,319 men consisting of 508 west and central Africans (from 12 populations), 188 Caribbeans (from 2 islands), 532 African Americans (AAs from Washington, DC and Columbia, SC), and 91 European Americans. Principal component and admixture analyses provide support for significant Grain Coast ancestry among African American men in South Carolina. AA men fromDC and the Caribbean showed a closer affinity to populations from the Bight of Biafra. Furthermore, 30–40% of the paternal lineages in African descent populations in the Americas are of European ancestry. Diverse west African ancestries and sexbiased gene flow from EAs has contributed greatly to the genetic heterogeneity of African populations throughout the Americas and has significant implications for gene mapping efforts in these populations

Maps showing location of (A) 5 populations in the Americas and (B) 12 West African populations sampled in the study.

<p>Maps showing location of (A) 5 populations in the Americas and (B) 12 West African populations sampled in the study.</p

Partitions of Y chromosome molecular variance.

<p> <b>Φ_ST = Within populations; Φ_CT = Among groups; Φ_SC = Among populations within groups; %V = Percent of the variance.</b></p

Estimates of European paternal ancestry (%) in African descent populations in the Americas.

<p>Estimates of European paternal ancestry (%) in African descent populations in the Americas.</p

Plot of the first two principal components of a Y chromosome genetic distance matrix estimated for 17 populations.

<p>Plot of the first two principal components of a Y chromosome genetic distance matrix estimated for 17 populations.</p