R. Johnson

3.6k total citations
88 papers, 2.4k citations indexed

About

R. Johnson is a scholar working on Plant Science, Molecular Biology and Communication. According to data from OpenAlex, R. Johnson has authored 88 papers receiving a total of 2.4k indexed citations (citations by other indexed papers that have themselves been cited), including 45 papers in Plant Science, 13 papers in Molecular Biology and 11 papers in Communication. Recurrent topics in R. Johnson's work include Wheat and Barley Genetics and Pathology (40 papers), Genetics and Plant Breeding (17 papers) and Yeasts and Rust Fungi Studies (12 papers). R. Johnson is often cited by papers focused on Wheat and Barley Genetics and Pathology (40 papers), Genetics and Plant Breeding (17 papers) and Yeasts and Rust Fungi Studies (12 papers). R. Johnson collaborates with scholars based in United Kingdom, South Africa and United States. R. Johnson's co-authors include Victor Chapman, Ralph Riley, Cornelius Johannes Krüger, N. H. Chamberlain, R. W. Stubbs, P. L. Dyck, C. N. Law, Mark Keil, A. C. Newton and C. E. Caten and has published in prestigious journals such as Nature, SHILAP Revista de lepidopterología and Annual Review of Phytopathology.

In The Last Decade

R. Johnson

82 papers receiving 2.1k citations

Author Peers

Peers are selected by citation overlap in the author's most active subfields. citations · hero ref

Author Last Decade Papers Cites
R. Johnson 1.9k 630 253 216 188 88 2.4k
Jo Luck 1.7k 0.9× 227 0.4× 68 0.3× 89 0.4× 322 1.7× 64 2.6k
Jacques van der Meer 1.3k 0.7× 341 0.5× 496 2.0× 104 0.5× 127 0.7× 43 2.2k
J. R. Wilcox 1.4k 0.8× 245 0.4× 120 0.5× 230 1.1× 47 0.3× 145 2.3k
Chia‐Yi Cheng 1.1k 0.6× 1.0k 1.6× 120 0.5× 21 0.1× 43 0.2× 31 2.0k
K B Saxena 837 0.4× 132 0.2× 38 0.2× 65 0.3× 13 0.1× 89 1.4k
Lone Bredahl 1.4k 0.7× 210 0.3× 175 0.7× 74 0.3× 22 0.1× 37 3.3k
James W. Walker 563 0.3× 1.1k 1.8× 155 0.6× 9 0.0× 58 0.3× 95 2.7k
Peter W.B. Phillips 908 0.5× 567 0.9× 137 0.5× 39 0.2× 8 0.0× 118 1.6k
Ian Murray 115 0.1× 335 0.5× 125 0.5× 201 0.9× 14 0.1× 104 2.3k
Judit Dobránszki 1.7k 0.9× 1.5k 2.3× 39 0.2× 24 0.1× 289 1.5× 126 2.9k

Countries citing papers authored by R. Johnson

Since Specialization
Citations

This map shows the geographic impact of R. Johnson'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 R. Johnson with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites R. Johnson more than expected).

Fields of papers citing papers by R. Johnson

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by R. Johnson. 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 R. Johnson. The network helps show where R. Johnson may publish in the future.

Co-authorship network of co-authors of R. Johnson

This figure shows the co-authorship network connecting the top 25 collaborators of R. Johnson. A scholar is included among the top collaborators of R. Johnson based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with R. Johnson. R. Johnson is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Sánchez-Sánchez, Besaiz J., et al.. (2025). Drosophila Col4a1 Glycine mutations highlight allelic heterogeneity and mechanistic pleiotropy. Matrix Biology. 140. 113–122. 1 indexed citations
2.
Johnson, R., et al.. (2021). Approaches for enhancing information sharing between government and communities in Western Cape. SHILAP Revista de lepidopterología. 11 indexed citations
3.
Ochara, Nixon Muganda, Pieter Joubert, Du Toit, & R. Johnson. (2018). Teaching Business Programming Using Games: A Critical Analysis. Electronic Journal of Research in Educational Psychology. 10(28). 1433–1462.
4.
Villiers, Carina de, et al.. (2012). South African ICT Skills Deficiency. Americas Conference on Information Systems. 35(5 Pt 2). 727–9. 5 indexed citations
5.
Krüger, Cornelius Johannes & R. Johnson. (2009). Enablers of South African Knowledge Management Maturity: Issues, Principles and Policies. Journal of the Association for Information Systems. 376. 1 indexed citations
6.
Topi, Heikki, Brian Donnellan, Markus Helfert, & R. Johnson. (2008). Panel: A New Global Process for Revising and Maintaining the Undergraduate IS Model Curriculum. Journal of the Association for Information Systems. 1513–1517. 1 indexed citations
7.
Napier, Nannette P. & R. Johnson. (2007). Technical Projects: Understanding Teamwork Satisfaction in an Introductory IS Course.. The Journal of Information and Systems in Education. 18(1). 39–48. 23 indexed citations
8.
Napier, Nannette P., Lars Mathiassen, & R. Johnson. (2006). Perceptions and Processes in Assessing Software Requirements Practices. Journal of the Association for Information Systems. 458. 2 indexed citations
9.
Napier, Nannette P., Lars Mathiassen, & R. Johnson. (2006). NEGOTIATING RESPONSE-ABILITY AND REPEAT- ABILITY IN REQUIREMENTS ENGINEERING. Journal of the Association for Information Systems. 54. 4 indexed citations
10.
Johnson, R., et al.. (2005). Service Learning in IS: Teaming with Community and Industry. Journal of the Association for Information Systems. 98. 3 indexed citations
11.
Johnson, R., et al.. (2004). Project Management Courses in IS Graduate Programs: What is Being Taught?. Journal of the Association for Information Systems. 15(2). 181–188. 21 indexed citations
12.
Johnson, R., et al.. (2004). The Faculty Perspective on the Impact of AACSB Accreditation. The Academy of Educational Leadership Journal. 8(1). 111. 19 indexed citations
13.
Keil, Mark & R. Johnson. (2002). Feedback Channels: Using Social Presence Theory to Compare Voice Mail to E-mail. Journal of the Association for Information Systems. 13(4). 295–302. 31 indexed citations
14.
Кохметова, Алма, M. Yessimbekova, C. Wellings, et al.. (2002). Improvement of wheat yellow rust resistance in Kazakhstan and Uzbekistan through sub-regional co-operation.. Placenta. 17(7). 34–41. 7 indexed citations
15.
Johnson, R.. (2000). Classical plant breeding for durable resistance to diseases. Journal of Plant Pathology. 82(1). 3–7. 22 indexed citations
16.
Johnson, R., et al.. (2000). Resistance to yellow (stripe) rust in wheats possessing Yr18 in England, New Zealand and Mexico.. Acta Phytopathologica et Entomologica Hungarica. 35. 3–9. 5 indexed citations
17.
Calonnec, Agnes A., R. Johnson, & C. de Vallavieille‐Pope. (1997). Identification and expression of the gene Yr2 for resistance to Puccinia striiformis in the wheat differential cultivars Heines Kolben, Heines Peko and Heines VII. Plant Pathology. 46(3). 387–396. 8 indexed citations
18.
Limpert, E., et al.. (1994). Systems of Designation of Pathotypes of Plant Pathogens. Journal of Phytopathology. 140(4). 359–362. 33 indexed citations
19.
Chilosi, G. & R. Johnson. (1990). Resistance to races of Puccinia striiformis in seedlings of Italian wheats and possible presence of the Yr6 gene in some durum cultivars.. Journal of genetics & breeding. 44(1). 13–19. 3 indexed citations
20.
Johnson, R., et al.. (1983). New Horizons: An Introduction to University Studies.. Adult Education. 56(3). 1 indexed citations

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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