Ralf J. Sommer

12.7k total citations · 1 hit paper
256 papers, 9.2k citations indexed

About

Ralf J. Sommer is a scholar working on Aging, Plant Science and Ecology. According to data from OpenAlex, Ralf J. Sommer has authored 256 papers receiving a total of 9.2k indexed citations (citations by other indexed papers that have themselves been cited), including 142 papers in Aging, 121 papers in Plant Science and 102 papers in Ecology. Recurrent topics in Ralf J. Sommer's work include Genetics, Aging, and Longevity in Model Organisms (142 papers), Nematode management and characterization studies (109 papers) and Parasite Biology and Host Interactions (81 papers). Ralf J. Sommer is often cited by papers focused on Genetics, Aging, and Longevity in Model Organisms (142 papers), Nematode management and characterization studies (109 papers) and Parasite Biology and Host Interactions (81 papers). Ralf J. Sommer collaborates with scholars based in Germany, United States and Japan. Ralf J. Sommer's co-authors include Diethard Tautz, Christian Rödelsperger, Matthias Herrmann, André Pires‐daSilva, Hanh Witte, Werner E. Mayer, Paul W. Sternberg, Erik J. Ragsdale, Akira Ogawa and Ray L. Hong and has published in prestigious journals such as Nature, Science and Cell.

In The Last Decade

Ralf J. Sommer

252 papers receiving 9.0k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Phenotypic Plasticity: From Theory and Genetics to Current and Future Challenges

2020 172 citations Ralf J. Sommer profile →

Peers

Countries citing papers authored by Ralf J. Sommer

Since Specialization

Citations

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

Fields of papers citing papers by Ralf J. Sommer

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ralf J. Sommer. 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 Ralf J. Sommer. The network helps show where Ralf J. Sommer may publish in the future.

Co-authorship network of co-authors of Ralf J. Sommer

This figure shows the co-authorship network connecting the top 25 collaborators of Ralf J. Sommer. A scholar is included among the top collaborators of Ralf J. Sommer 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 Ralf J. Sommer. Ralf J. Sommer 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

#	Work	Indexed citations
1	Comparative connectomics of two distantly related nematode species reveals patterns of nervous system evolution 2025 ·Science ·Steven J. Cook, (unknown), Curtis M. Loer, (unknown), (unknown), (unknown), Daniel J. Bumbarger, Metta Riebesell, Barbara Conradt, Ralf Schnabel, Ralf J. Sommer, Oliver Hobert	2
2	Genome Assembly of the Nematode Rhabditoides Inermis From a Complex Microbial Community 2024 ·Genome Biology and Evolution ·Christian Rödelsperger, Waltraud Röseler, (unknown), (unknown), Matthias Herrmann, Ralf J. Sommer	2
3	Rapid chromosome evolution and acquisition of thermosensitive stochastic sex determination in nematode androdioecious hermaphrodites 2024 ·Nature Communications ·Kohta Yoshida, Hanh Witte, (unknown), (unknown), Taisei Kikuchi, Waltraud Röseler, Ralf J. Sommer	4
4	The Role of Epigenetic Switches in Polyphenism Control: Implications from a Nematode Model for the Developmental Regulation of Alternative Phenotypes 2024 ·Biology ·(unknown), Ralf J. Sommer	3
5	An evolutionary perspective on the relationship between kinetochore size and CENP-E dependence for chromosome alignment 2024 ·Journal of Cell Science ·(unknown), (unknown), (unknown), Hanh Witte, Ralf J. Sommer, ‎Berend Snel, Geert J.P.L. Kops, Reto Gassmann, Hélder Maiato	0
6	Nematode genome announcement: A chromosome-scale genome assembly for the Pristionchus pacificus reference mapping strain PS1843 2024 ·Journal of Nematology ·Waltraud Röseler, Ralf J. Sommer, Christian Rödelsperger	2
7	Feeding‐structure morphogenesis in “rhabditid” and diplogastrid nematodes is not controlled by a conserved genetic module 2024 ·Evolution & Development ·(unknown), Ralf J. Sommer	6
8	The role of plasticity and stochasticity in coexistence 2024 ·Ecology Letters ·(unknown), Ralf J. Sommer	4
9	Conserved switch genes that arose via whole-genome duplication regulate a cannibalistic nematode morph 2024 ·Science Advances ·(unknown), Hanh Witte, Ralf J. Sommer	8
10	Experimental and theoretical support for costs of plasticity and phenotype in a nematode cannibalistic trait 2023 ·Evolution Letters ·(unknown), (unknown), (unknown), Ralf J. Sommer	8
11	Adaptation to environmental temperature in divergent clades of the nematodePristionchus pacificus 2022 ·Evolution ·Mark Leaver, Eduardo Moreno, (unknown), Angela McGaughran, Christian Rödelsperger, Ralf J. Sommer, Anthony A. Hyman	3
12	Single worm transcriptomics identifies a developmental core network of oscillating genes with deep conservation across nematodes 2021 ·Genome Research ·Shuai Sun, Christian Rödelsperger, Ralf J. Sommer	17
13	Bacterial vitamin B12 production enhances nematode predatory behavior 2020 ·The ISME Journal ·(unknown), James W. Lightfoot, Waltraud Röseler, Hanh Witte, Wen‐Sui Lo, Christian Rödelsperger, Ralf J. Sommer	34
14	Small peptide–mediated self-recognition prevents cannibalism in predatory nematodes 2019 ·Science ·James W. Lightfoot, (unknown), Christian Rödelsperger, Eduardo Moreno, Vladislav Susoy, Hanh Witte, Ralf J. Sommer	75
15	Large-scale diversification without genetic isolation in nematode symbionts of figs 2016 ·Science Advances ·Vladislav Susoy, Matthias Herrmann, Natsumi Kanzaki, (unknown), (unknown), Christian Rödelsperger, Waltraud Röseler, Christian Weiler, Robin M. Giblin-davis, Erik J. Ragsdale, Ralf J. Sommer	78
16	A locus inPristionchus pacificusthat is responsible for the ability to give rise to fertile offspring at higher temperatures 2016 ·Biology Open ·Mark Leaver, (unknown), (unknown), Ralf J. Sommer, Anthony A. Hyman	4
17	Natural variation in Pristionchus pacificus dauer formation reveals cross-preference rather than self-preference of nematode dauer pheromones 2011 ·Proceedings of the Royal Society B Biological Sciences ·M. Mayer, Ralf J. Sommer	54
18	Performancevergleich von CEP-Engines 2010 ·Fachbereich Informatik (University of Stuttgart) ·(unknown), (unknown), Ralf J. Sommer	1
19	Natural variation in Pristionchus pacificus insect pheromone attraction involves the protein kinase EGL-4 2008 ·Proceedings of the National Academy of Sciences ·Ray L. Hong, Hanh Witte, Ralf J. Sommer	52
20	The Nematode Pristionchus pacificus (Nematoda: Diplogastridae) Is Associated with the Oriental Beetle Exomala orientalis (Coleoptera: Scarabaeidae) in Japan 2007 ·ZOOLOGICAL SCIENCE ·Matthias Herrmann, Werner E. Mayer, Ray L. Hong, (unknown), (unknown), Ralf J. Sommer	96

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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