John R. Clark

Affiliation confirmed via AI analysis of OpenAlex, ORCID, and web sources.

High Impact

Executive Dean

University of Arkansas

Also affiliated: Boston University (2012); Brigham and Women's Hospital (2010); Tufts Medical Center (2012); University of Minnesota (2010–2014); Blackberry (United States) (2010–2012); Agricultural Research Service (1996–2018); Oregon State University (2003–2018); Agriculture and Agri-Food Canada (2012); Wildlife Conservation Society (1964); United States Department of Agriculture (1986–2018); United States Department of Commerce (1959); Harvard University (1981–2010); North Carolina State University (2011); University of British Columbia (1964); University of Kentucky (2001–2014); Johns Hopkins University (2025); University of Miami (1969–1997); University of California, Los Angeles (1964–1978); Fordham University (2006); University of Georgia (2005–2018); University of St Andrews (2017); George Washington University (1999–2016); Stephen F. Austin State University (1996); Cornell University (1991–2012); University of Massachusetts Amherst (2001); University of South Florida (1978–1995); Brown University (2012); Cincinnati Zoo and Botanical Garden (2011); University of Arkansas System (1993–2026); St Vincent Hospital (2012–2013); Orange Coast College (1974–1977); Mote Marine Laboratory (1997–2018); Johns Hopkins University Applied Physics Laboratory (2025); University of Florida (2000–2001); Massachusetts General Hospital (2010–2012); Southeastern Fruit and Tree Nut Research Laboratory (2010–2012); San Joaquin Valley Agricultural Sciences Center (2010); New York State College of Agriculture & Life Sciences (2012); International Union for Conservation of Nature (United Kingdom) (2000); American Littoral Society (1968–1969); National Clonal Germplasm Repository (2018); Dana-Farber Cancer Institute (2010–2012); National Council of Teachers of Mathematics (1970); Beltsville Agricultural Research Center (1986–2005); Horticultural Crops Research Laboratory (2007–2018); Appalachian Fruit Research Laboratory (2003); Washington Tree Fruit Research Commission (2014); Dana-Farber Brigham Cancer Center (2010); Kentville Research and Development Centre (2012); National Institute of Horticultural and Herbal Science (2010); College of Remote and Offshore Medicine (2025); United States Weather Bureau (1956); The Ohio State University (2007); Universidade Federal do Paraná (2017); New York University (1970–1971); Virginia Institute of Marine Science (1969); New Mexico Highlands University (1968–1970); University of Pretoria (2005); Washington State University (1991–2014); University of Tennessee at Knoxville (2001); Columbia University (1949–1951); University of Pennsylvania (1977); Clemson University (2014); Auburn University (1996); Virginia Tech (1996); Michigan State University (2005); Texas A&M University (2000); Colorado State University (2005); University of California, Berkeley (1938)

37 h-index 682 pubs 8,518 cited

Research Areas

Biomedical Subjects

Links

ORCID Lab Website Research Group

OverviewAI-generated summary

John R. Clark's research focuses on the genetic underpinnings of fruit quality and related traits in various berry species, including blackberry and muscadine grapes. His work has identified specific genetic loci associated with fruit quality characteristics, such as postharvest quality and the reversion of drupelets in blackberries. He also investigates the role of particular genes, like glutathione S-transferase, in determining berry color in grapes.

Clark's scholarly output includes studies on the effect of harvest time and fruit firmness on blackberry quality, as well as the genetic control of prickles in tetraploid blackberry. His research extends to identifying unique quality attributes of Arkansas-grown fresh-market blackberries and analyzing their phenolic and volatile compounds. His work has been published in numerous peer-reviewed journals, contributing to a body of work that has garnered significant citations and an h-index of 37.

He is a highly cited researcher and leads an active research group at the University of Arkansas at Fayetteville. His collaborations include extensive work with Margaret Worthington, Renee T. Threlfall, T. Mason Chizk, and Luke R. Howard, all affiliated with the University of Arkansas at Fayetteville.

Metrics

h-index: 37
Publications: 682
Citations: 8,518

Positions

President of Governing Board 2023–present

College of Remote and Offshore Medicine ORCID
Chief Operating Officer 2000–present

International Board of Specialty Certification ORCID
Executive Dean publications 1986–2026

University of Arkansas at Fayetteville Listing

Selected Publications

Runoff Water Quality Assessment from Furrow-Irrigated Rice Treated with Poultry Litter (2026)

DOI OpenAlex
Poultry-Litter Effects on the Change in Water-Stable Aggregation in Loamy Soils in Eastern Arkansas (2025)

DOI OpenAlex
Genetic control of sweetness and acidity in blackberry (2025)

Frontiers in Plant Science 5 citations DOI OpenAlex
ShinyFruit: interactive fruit phenotyping software and its application in blackberry (2023)

3 citations DOI OpenAlex
Genome-wide association identifies key loci controlling blackberry postharvest quality (2023)

Frontiers in Plant Science 14 citations DOI OpenAlex
Identifying Unique Quality Attributes of Arkansas-Grown Fresh-Market Blackberries (2023)

ACS Food Science & Technology 5 citations DOI OpenAlex
Phenolics and Volatiles in Arkansas Fresh-Market Blackberries (Rubus subgenus Rubus Watson) (2022)

ACS Food Science & Technology 5 citations DOI OpenAlex
Glutathione S-transferase: a candidate gene for berry color in muscadine grapes ( Vitis rotundifoli a ) (2022)

G3 Genes Genomes Genetics 7 citations DOI OpenAlex
Corrigendum: Multi-Locus Genome-Wide Association Studies Reveal Fruit Quality Hotspots in Peach Genome (2022)

1 citation DOI OpenAlex