Human Geneticists Begin Moving Away from Using "Race" to Identify Human PopulationsBreaking News
tags: history of science, racism, genetics
Human geneticists have mostly abandoned the word “race” when describing populations in their papers, according to a new study of research published in a leading genetics journal. That’s in line with the current scientific understanding that race is a social construct, and a welcome departure from research that in the past has often conflated genetic variation and racial categories, says Vence Bonham, a social scientist at the National Human Genome Research Institute who led the study.
But alternative terms that have gained popularity, such as “ancestry” and “ethnicity,” can have ambiguous meanings or aren’t defined by genetics, suggesting researchers are still struggling to find the words to accurately describe groups delineated by their DNA, according to the study.
In the 19th and 20th centuries, many geneticists embraced the idea that there were races, such as “Negroid” or “Caucasian,” that were distinct biological groups; such “race science” helped perpetuate discrimination and inequality. (Scientists have now thoroughly demonstrated the lack of a biological basis to racial categories.)
To better understand how geneticists have used population descriptors over time, Bonham and an interdisciplinary team dove into the archives of The American Journal of Human Genetics (AJHG), which has the longest history in the field of genetics.
Editors of AJHG gave the team access to the journal’s entire archive. The researchers quantified specific terms in the full text of 11,635 articles published from 1949—the year the journal started—to 2018. They found the word “race” appeared in 22% of papers in the first decade, but its usage declined to 5% of papers in the most recent decade.
The decline in usage of “race” reflects how geneticists slowly came to understand race as “a social category with biological consequences,” the team writes in its paper, published today in AJHG.
The researchers also found that terms associated with racial groups, such as “Negro” and “Caucasian,” which were used in 21% and 12%, respectively, of papers in the first decade, started to decline after the 1970s. In the last decade, fewer than 1% of papers used those terms. This decline confirms such labels are “not based on immutable biological order but shift in tandem with social context,” the authors write.
“This paper provides a window to view the history of a society of scientists that had a big impact in how racial terminology and racial thinking was used,” says Rick Kittles, a geneticist at City of Hope National Medical Center who was not part of the study.
When “race” is used in genetics papers today, the study found, it’s more likely to be accompanied by the terms “ethnicity” or “ancestry,” perhaps because the ambiguity of the terms led researchers to simply combine them and therefore dodge their definitions. “That just means that geneticists are as confused as everyone else,” says Fatimah Jackson, a biological anthropologist at Howard University who was not part of the study.
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