Charles Armstrong

4.2k total citations
39 papers, 2.3k citations indexed

About

Charles Armstrong is a scholar working on Molecular Biology, Plant Science and Biotechnology. According to data from OpenAlex, Charles Armstrong has authored 39 papers receiving a total of 2.3k indexed citations (citations by other indexed papers that have themselves been cited), including 25 papers in Molecular Biology, 16 papers in Plant Science and 13 papers in Biotechnology. Recurrent topics in Charles Armstrong's work include Plant tissue culture and regeneration (21 papers), Transgenic Plants and Applications (13 papers) and Plant Genetic and Mutation Studies (9 papers). Charles Armstrong is often cited by papers focused on Plant tissue culture and regeneration (21 papers), Transgenic Plants and Applications (13 papers) and Plant Genetic and Mutation Studies (9 papers). Charles Armstrong collaborates with scholars based in United States, United Kingdom and France. Charles Armstrong's co-authors include Michael Fromm, John B. Thomas, Fionnuala Morrish, Theodore M. Klein, W. L. Petersen, D. D. Songstad, Brenda Lowe, Xudong Ye, Tim Spencer and Ming Cheng and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Nature Biotechnology and PLANT PHYSIOLOGY.

In The Last Decade

Charles Armstrong

36 papers receiving 2.1k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Charles Armstrong United States 21 1.9k 1.6k 836 142 55 39 2.3k
Alan H. Christensen United States 13 2.1k 1.1× 1.9k 1.2× 886 1.1× 94 0.7× 47 0.9× 19 2.6k
Geneviève Hansen United States 20 1.6k 0.8× 1.1k 0.7× 599 0.7× 75 0.5× 9 0.2× 25 1.8k
Dennis E. Mathews United States 17 1.3k 0.6× 1.4k 0.9× 116 0.1× 74 0.5× 20 0.4× 24 1.9k
Yukihiro Ito Japan 24 1.7k 0.9× 1.9k 1.2× 82 0.1× 245 1.7× 36 0.7× 51 2.4k
Yuan Zong China 16 3.8k 1.9× 2.5k 1.5× 330 0.4× 648 4.6× 69 1.3× 40 4.3k
Christopher Bonin United States 13 563 0.3× 704 0.4× 87 0.1× 108 0.8× 79 1.4× 15 1.1k
Qian Zhao China 20 792 0.4× 875 0.5× 110 0.1× 167 1.2× 39 0.7× 65 1.3k
Lada Filonova Sweden 18 1.5k 0.8× 1.5k 0.9× 127 0.2× 22 0.2× 45 0.8× 23 2.0k
L. Tabe Australia 16 703 0.4× 743 0.5× 259 0.3× 156 1.1× 124 2.3× 20 1.2k
Thomas E. Bureau Canada 28 2.2k 1.1× 3.0k 1.8× 60 0.1× 360 2.5× 31 0.6× 46 3.4k

Countries citing papers authored by Charles Armstrong

Since Specialization
Citations

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

Fields of papers citing papers by Charles Armstrong

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Charles Armstrong

This figure shows the co-authorship network connecting the top 25 collaborators of Charles Armstrong. A scholar is included among the top collaborators of Charles Armstrong 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 Charles Armstrong. Charles Armstrong 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.
Shrawat, Ashok K., et al.. (2023). Agrobacterium-mediated direct transformation of wheat mature embryos through organogenesis. Frontiers in Plant Science. 14. 1202235–1202235. 10 indexed citations
2.
Armstrong, Charles, et al.. (2022). Demonstration of targeted crossovers in hybrid maize using CRISPR technology. Communications Biology. 5(1). 53–53. 18 indexed citations
3.
Armstrong, Charles, et al.. (2022). Sperm Morphology of Domestic Animals. 2 indexed citations
4.
Ye, Xudong, Ashok K. Shrawat, Edward J. Williams, et al.. (2022). Commercial scale genetic transformation of mature seed embryo explants in maize. Frontiers in Plant Science. 13. 1056190–1056190. 12 indexed citations
5.
Sidorov, V. A., Dafu Wang, É. Nagy, et al.. (2021). Heritable DNA-free genome editing of canola (Brassica napus L.) using PEG-mediated transfection of isolated protoplasts. In Vitro Cellular & Developmental Biology - Plant. 58(3). 447–456. 20 indexed citations
6.
Armstrong, Charles, et al.. (2019). Diagnostic utility of fluorodeoxyglucose positron emission tomography in prosthetic joint infection based on MSIS criteria. The Bone & Joint Journal. 101-B(8). 910–914. 20 indexed citations
7.
Lowe, Brenda, et al.. (2006). Marker assisted breeding for transformability in maize. Molecular Breeding. 18(3). 229–239. 20 indexed citations
8.
Dan, Yinghui, et al.. (2005). MicroTom—a high-throughput model transformation system for functional genomics. Plant Cell Reports. 25(5). 432–441. 86 indexed citations
9.
Cheng, Ming, Brenda Lowe, Tim Spencer, Xudong Ye, & Charles Armstrong. (2004). Factors influencing Agrobacterium-mediated transformation of monocotyledonous species. In Vitro Cellular & Developmental Biology - Plant. 40(1). 31–45. 199 indexed citations
10.
Shen, Aimee, et al.. (2003). Cre/lox-mediated marker gene excision in transgenic maize (Zea mays L.) plants. Theoretical and Applied Genetics. 107(7). 1157–1168. 168 indexed citations
11.
Songstad, D. D., Charles Armstrong, Maud Hinchee, et al.. (1993). Transient expression of GUS and anthocyanin constructs in intact maize immature embryos following electroporation. Plant Cell Tissue and Organ Culture (PCTOC). 33(2). 195–201. 40 indexed citations
12.
Petersen, W. L., et al.. (1992). Effect of nurse cultures on the production of macro-calli and fertile plants from maize embryogenic suspension culture protoplasts. Plant Cell Reports. 10(12). 591–4. 18 indexed citations
13.
Armstrong, Charles, Jeanne Romero‐Severson, & Thomas K. Hodges. (1992). Improved tissue culture response of an elite maize inbred through backcross breeding, and identification of chromosomal regions important for regeneration by RFLP analysis. Theoretical and Applied Genetics. 84-84(5-6). 755–762. 119 indexed citations
14.
Songstad, D. D., W. L. Petersen, & Charles Armstrong. (1992). Establishment of Friable Embryogenic (Type II) Callus from Immature Tassels of Zea mays (Poaceae). American Journal of Botany. 79(7). 761–761. 13 indexed citations
15.
Songstad, D. D., Charles Armstrong, & W. L. Petersen. (1991). AgNO3 increases type II callus production from immature embryos of maize inbred B73 and its derivatives. Plant Cell Reports. 9(12). 699–702. 75 indexed citations
16.
Armstrong, Charles, et al.. (1991). Development and availability of germplasm with high Type II culture formation response. 119 indexed citations
17.
Fromm, Michael, et al.. (1990). Inheritance and Expression of Chimeric Genes in the Progeny of Transgenic Maize Plants. Nature Biotechnology. 8(9). 833–839. 360 indexed citations
18.
Armstrong, Charles & R. L. Phillips. (1988). Genetic and Cytogenetic Variation in Plants Regenerated from Organogenic and Friable, Embryogenic Tissue Cultures of Maize. Crop Science. 28(2). 363–369. 62 indexed citations
19.
Armstrong, Charles, et al.. (1952). Poliomyelitis and Atmospheric Humidity in an Elevated Semiarid Region, Denver, Colorado, 1950 and 1951. American Journal of Public Health and the Nations Health. 42(10). 1246–1252. 3 indexed citations
20.
Armstrong, Charles. (1952). Poliomyelitis and the Weather. Proceedings of the National Academy of Sciences. 38(7). 613–618. 5 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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Rankless by CCL
2026