Steven J. Knapp

18.3k citations

214 papers · 10.9k indexed · 2 hit papers · h-index 60

Impact in

Plant Science top 0.05%
- Sunflower and Safflower Cultivation
- Genetics and Plant Breeding
- Soybean genetics and cultivation
- Wheat and Barley Genetics and Pathology
- Peanut Plant Research Studies
- Plant Disease Resistance and Genetics
Genetics top 0.2%
- Genetic Mapping and Diversity in Plants and Animals
- Genetic diversity and population structure

Papers in

Plant Science 194
- Sunflower and Safflower Cultivation 54
- Genetics and Plant Breeding 31
- Berry genetics and cultivation research 31
- Soybean genetics and cultivation 29
- Plant Pathogens and Resistance 19
Biochemistry 27
- Lipid metabolism and biosynthesis 27

Co-authors: Shunxue Tang John M. Burke W. M. Ross Walter W. Stroup Loren H. Rieseberg Mary B. Slabaugh William C. Bridges Kristi R. Harkins
Journals: Theoretical and Applied Genetics (44 papers)Crop Science (33 papers)Genetics (12 papers)Genome (9 papers)G3 Genes Genomes Genetics (8 papers)
Partner nations: United States Canada Germany

In The Last Decade

Steven J. Knapp

210 papers receiving 10.4k citations

Hit Papers

align trajectories log scale

Grey mould of strawberry, a devastating disease caused by the ubiquitous necrotrophic fungal pathogen Botrytis cinerea 2019 · 306 citations

Peers

Countries citing papers authored by Steven J. Knapp

Since Specialization

Citations

This map shows the geographic impact of Steven J. Knapp's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Steven J. Knapp with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Steven J. Knapp more than expected).

Fields of papers citing papers by Steven J. Knapp

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Steven J. Knapp. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Steven J. Knapp. The network helps show where Steven J. Knapp may publish in the future.

Co-authors

The 25 scholars most cited alongside Steven J. Knapp, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Steven J. Knapp Line = papers co-authored together Steven J. Knapp links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

#	Work
1	Unraveling the Fusarium oxysporum f. sp. fragariae –Strawberry Interaction: Evolution, Infection, and Genetic Resistance Molecular Plant-Microbe Interactions ·Mishi Vachev, Marta Bjornson, Dominique D. A. Pincot, Peter M. Henry, Gitta Coaker, Steven J. Knapp, Mitchell J. Feldmann	2025	0
2	Loss-of-function mutations in the fruit softening gene POLYGALACTURONASE1 doubled fruit firmness in strawberry Horticulture Research ·Nicolás P Jiménez, Marta Bjornson, Randi A. Famula, Dominique D. A. Pincot, Michael A. Hardigan, Mary Madera, Carmen Martínez Ramírez, Glenn S. Cole, Mitchell J. Feldmann, Steven J. Knapp	2024	2
3	Uncovering genetic and metabolite markers associated with resistance against anthracnose fruit rot in northern highbush blueberry Horticulture Research ·MacKenzie Jacobs, Samantha Thompson, Adrian E. Platts, Mélanie Body, Alexys Kelsey, Amanda Saad, Patrick Abeli, Scott J. Teresi, Anthony L. Schilmiller, Randolph M. Beaudry, Mitchell J. Feldmann, Steven J. Knapp, Guo‐qing Song, Timothy D. Miles, Patrick P. Edger	2023	7
4	Average semivariance directly yields accurate estimates of the genomic variance in complex trait analyses G3 Genes Genomes Genetics ·Mitchell J. Feldmann, Hans‐Peter Piepho, Steven J. Knapp	2022	11
5	Novel Fusarium wilt resistance genes uncovered in natural and cultivated strawberry populations are found on three non-homoeologous chromosomes Theoretical and Applied Genetics ·Dominique D. A. Pincot, Mitchell J. Feldmann, Michael A. Hardigan, Mishi Vachev, Peter M. Henry, Thomas R. Gordon, Marta Bjornson, Alan Rodriguez, Nicolás Cobo, Randi A. Famula, Glenn S. Cole, Gitta Coaker, Steven J. Knapp	2022	31
6	Genomic prediction of strawberry resistance to postharvest fruit decay caused by the fungal pathogen Botrytis cinerea G3 Genes Genomes Genetics ·Stefan Petrasch, Saskia D. Mesquida‐Pesci, Dominique D. A. Pincot, Mitchell J. Feldmann, Cindy M. Lòpez, Randi A. Famula, Michael A. Hardigan, Glenn S. Cole, Steven J. Knapp, Barbara Blanco‐Ulate	2021	31
7	Social network analysis of the genealogy of strawberry: retracing the wild roots of heirloom and modern cultivars G3 Genes Genomes Genetics ·Dominique D. A. Pincot, Mirko Ledda, Mitchell J. Feldmann, Michael A. Hardigan, Thomas J. Poorten, Daniel E. Runcie, Christopher Heffelfinger, Stephen L. Dellaporta, Glenn S. Cole, Steven J. Knapp	2021	23
8	Average semivariance yields accurate estimates of the fraction of marker-associated genetic variance and heritability in complex trait analyses PLoS Genetics ·Mitchell J. Feldmann, Hans‐Peter Piepho, William C. Bridges, Steven J. Knapp	2021	14
9	Unraveling the Complex Hybrid Ancestry and Domestication History of Cultivated Strawberry Molecular Biology and Evolution ·Michael A. Hardigan, Anne Lorant, Dominique D. A. Pincot, Mitchell J. Feldmann, Randi A. Famula, Charlotte B. Acharya, Seonghee Lee, Sujeet Verma, Vance M. Whitaker, Nahla Bassil, Jason D. Zurn, Glenn S. Cole, Kevin A. Bird, Patrick P. Edger, Steven J. Knapp	2021	56
10	Multi-dimensional machine learning approaches for fruit shape phenotyping in strawberry GigaScience ·Mitchell J. Feldmann, Michael A. Hardigan, Randi A. Famula, Cindy M. Lòpez, Amy Tabb, Glenn S. Cole, Steven J. Knapp	2020	36
11	Disease Resistance Genetics and Genomics in Octoploid Strawberry G3 Genes Genomes Genetics ·Christopher R. Barbey, Seonghee Lee, Sujeet Verma, Kevin A. Bird, Alan Yocca, Patrick P. Edger, Steven J. Knapp, Vance M. Whitaker, Kevin M. Folta	2019	28
12	Quantitative Trait Loci Associated with Sex Expression in an Inter-subspecific Watermelon Population Journal of the American Society for Horticultural Science ·Jason Prothro, Hussein Abdel‐Haleem, Eleni Bachlava, Victoria E. White, Steven J. Knapp, Cecilia McGregor	2013	11
13	Mapping of the Egusi Seed Trait Locus (eg) and Quantitative Trait Loci Associated with Seed Oil Percentage in Watermelon Journal of the American Society for Horticultural Science ·Jason Prothro, Katherine Sandlin, Rattandeep Gill, Eleni Bachlava, Victoria E. White, Steven J. Knapp, Cecilia McGregor	2012	22
14	Main and Epistatic Quantitative Trait Loci Associated with Seed Size in Watermelon Journal of the American Society for Horticultural Science ·Jason Prothro, Katherine Sandlin, Hussein Abdel‐Haleem, Eleni Bachlava, Victoria E. White, Steven J. Knapp, Cecilia McGregor	2012	30
15	Multiple Paleopolyploidizations during the Evolution of the Compositae Reveal Parallel Patterns of Duplicate Gene Retention after Millions of Years Molecular Biology and Evolution ·Michael S. Barker, Nolan C. Kane, M. Matvienko, Alexander Kozik, Richard W. Michelmore, Steven J. Knapp, Loren H. Rieseberg	2008	252
16	Quantitative trait loci for broomrape (Orobanche cumana Wallr.) resistance in sunflower Theoretical and Applied Genetics ·Begoña Pérez‐Vich, B. Akhtouch, Steven J. Knapp, Alberto J. León, Leonardo Velasco, José M. Fernández‐Martínez, Simon Berry	2004	70
17	Simple sequence repeat map of the sunflower genome Theoretical and Applied Genetics ·Shihua Tang, Jianbin Yu, Mary B. Slabaugh, David K. Shintani, Steven J. Knapp	2002	258
18	Registration of the self-pollinated meadowfoam germplasm line OMF64. Crop Science ·J. M. Crane, Steven J. Knapp	2000	8
19	Systemic endopolyploidy in Arabidopsis thaliana. Crop protection newsletter ·David W. Galbraith, Kristi R. Harkins, Steven J. Knapp	1990	23
20	Confidence intervals for heritability for two-factor mating design single environment linear models Theoretical and Applied Genetics ·Steven J. Knapp	1986	27

About Steven J. Knapp

Steven J. Knapp is a scholar working on Plant Science, Biochemistry, Genetics, Agronomy and Crop Science and Inorganic Chemistry, having authored 214 papers that have together received 10.9k indexed citations. Recurring topics across this work include Sunflower and Safflower Cultivation (54 papers), Genetic Mapping and Diversity in Plants and Animals (36 papers), Genetics and Plant Breeding (31 papers), Berry genetics and cultivation research (31 papers), Soybean genetics and cultivation (29 papers), Genetic diversity and population structure (29 papers), Lipid metabolism and biosynthesis (27 papers) and Plant Pathogens and Resistance (19 papers). The work is most often cited by research in Plant Science (9.2k citations), Genetics (3.3k citations), Horticulture (88 citations), Biochemistry (522 citations) and Agronomy and Crop Science (563 citations). Steven J. Knapp has collaborated with scholars based in United States, Canada and Germany. Frequent co-authors include Shunxue Tang, John M. Burke, W. M. Ross, Walter W. Stroup, Loren H. Rieseberg, Mary B. Slabaugh, William C. Bridges, Kristi R. Harkins, David W. Galbraith and Barbara Blanco‐Ulate. Their work appears in journals such as Theoretical and Applied Genetics, Crop Science, Genetics, Genome and G3 Genes Genomes Genetics.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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