Study Suggests Link Between DNA and Marriage Satisfaction in Newlyweds

Anastasia Makhanova.
Photo by Russell Cothren

Anastasia Makhanova.

FAYETTEVILLE, Ark. – Variation in a specific gene could be related to traits that are beneficial to bonding and relationship satisfaction in the first years of a marriage, according to a new study by a University of Arkansas psychologist.

Recent research indicates that a variation called “CC” in the gene CD38 is associated with increased levels of gratitude. Extending that line of work, U of A psychologist Anastasia Makhanova and her colleagues used data from a study of genotyped newlyweds to explore whether a correlation existed between the CD38 CC variation and levels of trust, forgiveness and marriage satisfaction. They found that individuals with the CC variation did report higher levels of perceptions considered beneficial to successful relationships, particularly trust.

Marriage satisfaction tends to start high then drop, said Makhanova, assistant professor of psychology and first author of the study, published in the journal Nature Scientific Reports. “We were interested in seeing if some of the reasons that people might have a harder time maintaining relationship satisfaction in the newlywed period is due to some potential underlying genetic predispositions.”

For the work, researchers studied 142 newlyweds — 71 couples — a subset of a larger group used for other studies. The newlyweds’ DNA was collected three months after being married, and they also completed a survey at that point as well as one every four months for three years. At the end of the study, researchers compared survey results with the CD38 variations and found that those with the specific CC variation reported higher levels of traits corresponding to marriage satisfaction.

“CC individuals felt more grateful for their partner, reported higher trust in their partner, were more forgiving of their partner, and were more satisfied with their marriages than were AC/AA individuals,” the researchers wrote.

While the work points to a possible genetic link to marriage satisfaction,
Makhanova notes that it doesn’t mean those without the CD38 CC variation will not have successful relationships.

“So it's not that people who don't have the CC genotype are doomed to have problems,” she said. “It's just that they're more likely to have issues in some of these domains, and so those people might have to work a little bit more in those domains.”

About the University of Arkansas: As Arkansas' flagship institution, the U of A provides an internationally competitive education in more than 200 academic programs. Founded in 1871, the U of A contributes more than $2.2 billion to Arkansas’ economy through the teaching of new knowledge and skills, entrepreneurship and job development, discovery through research and creative activity while also providing training for professional disciplines. The Carnegie Foundation classifies the U of A among the top 3% of U.S. colleges and universities with the highest level of research activity. U.S. News & World Report ranks the U of A among the top public universities in the nation. See how the U of A works to build a better world at Arkansas Research News.

Contacts

Bob Whitby, science writer
University Relations
479-575-4737, whitby@uark.edu

Anastasia Makhanova, assistant professor, Psychological Science
Fulbright College of Arts and Sciences
479-575-2867, ammakhan@uark.edu

Headlines

#MyPathToSeniorWalk: Lizbeth Hernandez Finds Her Footing

Hernandez, a Nashville, Arkansas, native and accounting major, is a first-generation student who has found her footing at the U of A after earning her associate's degree at Cossatot Community College. 

School of Art Director Candidates to Present to Campus

Three candidates for the position of director of the School of Art in the Fulbright College of Arts and Sciences - Jason Guynes, Adam Herring and Rachel Debuque - will hold open forums on March 4, 7 and 11, respectively.

AI Outperforms Humans in Standardized Tests of Creative Potential

GPT-4 scored higher than human participants in three tests designed to measure divergent thinking, an indicator of creative potential. 

Fulbright College's Paul D. Adams to Give Prestigious Lecture at Indiana State University

Adams' lecture will highlight findings from his research at the U of A and is titled "Biophysical and Biochemical Approaches to Characterize Novel Molecular Details That Influence Ras-Related Protein Cell Signaling Function." 

The Office of Innovation for Education to Host Annual Education Innovation Rally

At the 2024 Innovation Rally, individuals, teams and organizations will step beyond conventional boundaries and approaches and embrace a collaborative approach to problem-solving.

News Daily