Margaret A. T. Johnson

505 total citations
27 papers, 410 citations indexed

About

Margaret A. T. Johnson is a scholar working on Plant Science, Ecology, Evolution, Behavior and Systematics and Molecular Biology. According to data from OpenAlex, Margaret A. T. Johnson has authored 27 papers receiving a total of 410 indexed citations (citations by other indexed papers that have themselves been cited), including 20 papers in Plant Science, 14 papers in Ecology, Evolution, Behavior and Systematics and 6 papers in Molecular Biology. Recurrent topics in Margaret A. T. Johnson's work include Chromosomal and Genetic Variations (10 papers), Plant Diversity and Evolution (7 papers) and Plant Ecology and Taxonomy Studies (6 papers). Margaret A. T. Johnson is often cited by papers focused on Chromosomal and Genetic Variations (10 papers), Plant Diversity and Evolution (7 papers) and Plant Ecology and Taxonomy Studies (6 papers). Margaret A. T. Johnson collaborates with scholars based in United Kingdom, Austria and Türkiye. Margaret A. T. Johnson's co-authors include P. E. Brandham, Lynda Hanson, M. D. Bennett, Martin Röser, Neriman Özhatay, Amy E. Boyd, Robert J. Baker, Brian Mathew, A. Kenton and Paula J. Rudall and has published in prestigious journals such as Evolution, Annals of Botany and Chromosoma.

In The Last Decade

Margaret A. T. Johnson

27 papers receiving 346 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Margaret A. T. Johnson United Kingdom 13 280 243 179 69 24 27 410
Jess A. Peirson United States 9 176 0.6× 263 1.1× 193 1.1× 56 0.8× 18 0.8× 13 364
Julià Molero Spain 11 208 0.7× 240 1.0× 147 0.8× 100 1.4× 12 0.5× 28 384
W.J.J.O. de Wilde Netherlands 11 177 0.6× 272 1.1× 159 0.9× 124 1.8× 13 0.5× 82 391
Nahid Heidari Sweden 7 180 0.6× 357 1.5× 315 1.8× 52 0.8× 10 0.4× 10 452
Jaime Güemes Spain 11 363 1.3× 332 1.4× 146 0.8× 102 1.5× 21 0.9× 55 500
Moshe Einhorn Israel 5 349 1.2× 294 1.2× 248 1.4× 179 2.6× 18 0.8× 7 548
Pedro Escobar García Austria 10 294 1.1× 246 1.0× 118 0.7× 137 2.0× 17 0.7× 16 419
Wolfgang Wetschnig Austria 10 217 0.8× 301 1.2× 226 1.3× 35 0.5× 14 0.6× 41 392
Kaj Vollesen United Kingdom 10 193 0.7× 335 1.4× 198 1.1× 24 0.3× 15 0.6× 57 434
Zeng Li-ping China 2 262 0.9× 299 1.2× 370 2.1× 121 1.8× 18 0.8× 2 540

Countries citing papers authored by Margaret A. T. Johnson

Since Specialization
Citations

This map shows the geographic impact of Margaret A. T. 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 Margaret A. T. Johnson with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Margaret A. T. Johnson more than expected).

Fields of papers citing papers by Margaret A. T. Johnson

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Margaret A. T. Johnson

This figure shows the co-authorship network connecting the top 25 collaborators of Margaret A. T. Johnson. A scholar is included among the top collaborators of Margaret A. T. 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 Margaret A. T. Johnson. Margaret A. T. 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.
Hanson, Lynda, Amy E. Boyd, Margaret A. T. Johnson, & M. D. Bennett. (2005). First Nuclear DNA C-values for 18 Eudicot Families. Annals of Botany. 96(7). 1315–1320. 39 indexed citations
2.
Smith, Barbara, et al.. (2001). Allium ampeloprasum var. babingtonii (Alliaceae): an isoclonal plant found across a range of habitats in S.W. England. Plant Ecology. 155(2). 229–235. 8 indexed citations
3.
Johnson, Margaret A. T.. (1999). Two New Chromosome Numbers in an Unusual Albuca (Hyacinthaceae) from Saudi Arabia. Kew Bulletin. 54(2). 437–437. 3 indexed citations
4.
Brummitt, R. K., Hannah Banks, Margaret A. T. Johnson, et al.. (1998). Taxonomy of Cyanastroideae (Tecophilaeaceae): A Multidisciplinary Approach. Kew Bulletin. 53(4). 769–769. 13 indexed citations
5.
Röser, Martin, Margaret A. T. Johnson, & Lynda Hanson. (1997). Nuclear DNA Amounts in Palms (Arecaceae). Botanica Acta. 110(1). 79–89. 36 indexed citations
6.
Johnson, Margaret A. T. & P. E. Brandham. (1997). New Chromosome Numbers in Petaloid Monocotyledons and in Other Miscellaneous Angiosperms. Kew Bulletin. 52(1). 121–121. 62 indexed citations
7.
Johnson, Margaret A. T., et al.. (1997). Cytology of the highly polyploid disjunct species, Allium dregeanum (Alliaceae), and of some Eurasian relatives. Botanical Journal of the Linnean Society. 124(4). 361–373. 20 indexed citations
8.
Johnson, Margaret A. T.. (1994). Cytology of Three New Geophytes from Turkey. Kew Bulletin. 49(3). 491–491. 8 indexed citations
9.
Owens, S. J., Andrew Jackson, Michael Maunder, Paula J. Rudall, & Margaret A. T. Johnson. (1993). The breeding system of Ramosmania heterophylla-dioecy or heterostyly?. Botanical Journal of the Linnean Society. 113(1). 77–86. 9 indexed citations
10.
Özhatay, Neriman, et al.. (1991). A new hexaploid Bellevalia (Hyacinthaceae) from European Turkey. Botanical Journal of the Linnean Society. 107(1). 89–99. 22 indexed citations
11.
Johnson, Margaret A. T., A. Kenton, M. D. Bennett, & P. E. Brandham. (1989). Voanioala gerardii has the highest known chromosome number in the monocotyledons. Genome. 32(2). 328–333. 21 indexed citations
12.
Johnson, Margaret A. T. & Brian Mathew. (1989). The Identity of Iris 'Katharine Hodgkin': A Cytological and Morphological Approach. Kew Bulletin. 44(3). 515–515. 2 indexed citations
13.
Johnson, Margaret A. T., et al.. (1983). Observations on the leaf-anatomy, pollen, cytology and propagation of Calibanus hookeri (Lem.) Trelease. Bradleya. 1(1). 25–32. 5 indexed citations
14.
Brandham, P. E. & Margaret A. T. Johnson. (1982). Polyploidy and Chromosome Interchange in Aloe (Liliaceae) from Somalia. Kew Bulletin. 37(3). 389–389. 13 indexed citations
15.
Johnson, Margaret A. T.. (1980). Further cytological investigations in Mammillaria prolifera and other Mammillaria species.. 42(2). 43–47. 12 indexed citations
16.
Baker, Robert J., et al.. (1979). EVOLUTIONARY IMPLICATIONS OF CHROMOSOMAL HOMOLOGY IN FOUR GENERA OF STENODERMINE BATS (PHYLLOSTOMATIDAE: CHIROPTERA). Evolution. 33(1Part1). 220–226. 28 indexed citations
17.
Johnson, Margaret A. T.. (1979). Chromosome Numbers in Akania and Cephalotus. Kew Bulletin. 34(1). 37–37. 4 indexed citations
18.
Johnson, Margaret A. T., et al.. (1979). Evolutionary Implications of Chromosomal Homology in Four Genera of Stenodermine Bats (Phyllostomatidae: Chiroptera). Evolution. 33(1). 220–220. 14 indexed citations
19.
Brandham, P. E. & Margaret A. T. Johnson. (1977). The meiotic behaviour of inversions in polyploid aloineae. Chromosoma. 62(1). 85–91. 9 indexed citations
20.
Brandham, P. E. & Margaret A. T. Johnson. (1977). Population cytology of structural and numerical chromosome variants in theAlo�neae (Liliaceae). Plant Systematics and Evolution. 128(1-2). 105–122. 24 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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