Chris O’Brien

497 total citations
31 papers, 288 citations indexed

About

Chris O’Brien is a scholar working on Plant Science, Molecular Biology and Complementary and alternative medicine. According to data from OpenAlex, Chris O’Brien has authored 31 papers receiving a total of 288 indexed citations (citations by other indexed papers that have themselves been cited), including 24 papers in Plant Science, 21 papers in Molecular Biology and 4 papers in Complementary and alternative medicine. Recurrent topics in Chris O’Brien's work include Plant tissue culture and regeneration (16 papers), Seed Germination and Physiology (11 papers) and Plant Reproductive Biology (11 papers). Chris O’Brien is often cited by papers focused on Plant tissue culture and regeneration (16 papers), Seed Germination and Physiology (11 papers) and Plant Reproductive Biology (11 papers). Chris O’Brien collaborates with scholars based in Australia, United States and Philippines. Chris O’Brien's co-authors include R.A. Drew, P. M. Magdalita, Neena Mitter, Alice Hayward, R. A. I. Drew, Sarah Ashmore, A.G. Sajise, Donald E. Myers, Charles van Riper and Carlos López Encina and has published in prestigious journals such as Science, SHILAP Revista de lepidopterología and Scientia Horticulturae.

In The Last Decade

Chris O’Brien

30 papers receiving 252 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Chris O’Brien Australia	10	184	156	33	30	28	31	288
Sandrine Causse France	11	211 1.1×	162 1.0×	35 1.1×	5 0.2×	58 2.1×	17	383
Laila Gasmi Spain	11	140 0.8×	143 0.9×	44 1.3×	2 0.1×	23 0.8×	17	328
Jean Messi Cameroon	13	241 1.3×	43 0.3×	51 1.5×	8 0.3×	35 1.3×	48	441
Theo R. Allnutt Australia	9	100 0.5×	199 1.3×	7 0.2×	4 0.1×	24 0.9×	12	304
W. Otieno Kenya	12	260 1.4×	54 0.3×	43 1.3×	3 0.1×	34 1.2×	34	420
Jawwad Hassan Mirza Saudi Arabia	6	193 1.0×	58 0.4×	84 2.5×	2 0.1×	17 0.6×	41	334
Vincent O. Nyasembe United States	11	229 1.2×	45 0.3×	293 8.9×	7 0.2×	58 2.1×	15	485
Annabel FV Howard Netherlands	9	224 1.2×	124 0.8×	187 5.7×	2 0.1×	25 0.9×	11	437
Bruno Rodrigues Sampieri Brazil	13	179 1.0×	45 0.3×	47 1.4×	7 0.2×	31 1.1×	29	431
Muhammad Younis Pakistan	6	117 0.6×	101 0.6×	35 1.1×		41 1.5×	20	270

Countries citing papers authored by Chris O’Brien

Since Specialization

Citations

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

Fields of papers citing papers by Chris O’Brien

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Chris O’Brien. 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 Chris O’Brien. The network helps show where Chris O’Brien may publish in the future.

Co-authorship network of co-authors of Chris O’Brien

This figure shows the co-authorship network connecting the top 25 collaborators of Chris O’Brien. A scholar is included among the top collaborators of Chris O’Brien 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 Chris O’Brien. Chris O’Brien is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Sommerville, Karen D., et al.. (2025). Response surface optimization of basal nutrients for in vitro conservation of endangered plants: a Gossia fragrantissima case study. Plant Cell Tissue and Organ Culture (PCTOC). 163(1).

Sommerville, Karen D., et al.. (2024). Tissue Culture Innovations for Propagation and Conservation of Myrteae—A Globally Important Myrtaceae Tribe. Plants. 13(16). 2244–2244. 1 indexed citations

O’Brien, Chris, et al.. (2022). Tissue culture tools for selenium hyperaccumulator Neptunia amplexicaulis for development in phytoextraction. Natural Products and Bioprospecting. 12(1). 28–28. 4 indexed citations

O’Brien, Chris, et al.. (2021). Cryopreservation of Woody Crops: The Avocado Case. Plants. 10(5). 934–934. 17 indexed citations

Hayward, Alice, et al.. (2020). Phase Change Related microRNA Profiles in the Plant Regeneration Process of Avocado through Shoot-tip Culture. 4(2). 3 indexed citations

O’Brien, Chris, et al.. (2020). A method to increase regrowth of vitrified shoot tips of avocado (Persea americana Mill.): First critical step in developing a cryopreservation protocol. Scientia Horticulturae. 266. 109305–109305. 7 indexed citations

O’Brien, Chris, et al.. (2020). Developing a cryopreservation protocol for avocado (Persea americana Mill.) apical shoot tips using different antioxidants. Acta Horticulturae. 15–22. 2 indexed citations

O’Brien, Chris, et al.. (2018). Developing a cryopreservation protocol for avocado (Persea Americana Mill.) shoot tips.. Cryobiology. 85. 171–171. 3 indexed citations

Hayward, Alice, et al.. (2018). Acclimatization of micropropagated mature avocado. Acta Horticulturae. 13–20. 5 indexed citations

10.

O’Brien, Chris, et al.. (2016). Cryopreservation of avocado (Persea americanaMill.) using somatic embryos. Acta Horticulturae. 265–270. 1 indexed citations

11.

Hayward, Alice, et al.. (2015). Gibberellin and cytokinin in synergy for a rapid nodal multiplication system of avocado. Queensland's institutional digital repository (The University of Queensland). 95–98. 10 indexed citations

12.

Shelton, H. M., Scott A. Dalzell, Yi Zhou, et al.. (2013). Potential of Australian bermudagrasses (Cynodon spp.) for pasture in subtropical Australia. SHILAP Revista de lepidopterología. 1(1). 81–81. 2 indexed citations

13.

O’Brien, Chris, Charles van Riper, & Donald E. Myers. (2009). MAKING RELIABLE DECISIONS IN THE STUDY OF WILDLIFE DISEASES: USING HYPOTHESIS TESTS, STATISTICAL POWER, AND OBSERVED EFFECTS. Journal of Wildlife Diseases. 45(3). 700–712. 15 indexed citations

14.

O’Brien, Chris. (2008). Sample Size Calculations in Clinical Research, Second Edition by Shein‐Chung Chow, Jun Shao, Hansheng Wang. International Statistical Review. 76(2). 301–302. 6 indexed citations

15.

O’Brien, Chris. (2007). Disease Ecology: Community Structure and Pathogen Dynamics. Journal of Wildlife Diseases. 43(4). 802–805. 57 indexed citations

16.

Drew, R.A., et al.. (2007). INTERGENERIC HYBRIDISATION BETWEEN CARICA PAPAYA AND WILD VASCONCELLEA SPECIES AND IDENTIFICATION OF A PRSV-P RESISTANCE GENE. Acta Horticulturae. 165–169. 4 indexed citations

17.

Drew, R.A., et al.. (2006). Progress in backcrossing between Carica papaya × Vasconcellea quercifolia intergeneric hybrids and C. papaya. Australian Journal of Experimental Agriculture. 46(3). 419–419. 6 indexed citations

18.

O’Brien, Chris, et al.. (2005). CRYOPRESERVATION OF PAPAYA GERMPLASM. Acta Horticulturae. 43–50. 17 indexed citations

19.

Drew, R. A. I., Denis Persley, Chris O’Brien, & Marion Bateson. (2005). PAPAYA RINGSPOT VIRUS IN AUSTRALIA AND THE DEVELOPMENT OF VIRUS RESISTANT PLANTS. Acta Horticulturae. 101–106. 4 indexed citations

20.

O’Brien, Chris. (1996). Mad Cow Disease: Scant Data Cause Widespread Concern. Science. 271(5257). 1798a–1798. 2 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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