Agnar Helgason

33.1k citations

59 papers · 4.4k indexed · 1 hit paper · h-index 34

Genetics top 0.5%
Molecular Biology top 5%
Archeology top 0.5%
Plant Science top 10%
Experimental and Cognitive Psychology top 5%

Co-authors: Kāri Stefánsson Augustine Kong Jeffrey R. Gulcher Daníel F. Guðbjartsson Gísli Másson Unnur Þorsteinsdóttir Gı́sli Pálsson Guðmar Þorleifsson
Topics: Forensic and Genetic Research (16 papers)Genetic diversity and population structure (14 papers)Genetic Associations and Epidemiology (12 papers)
Cited by: Genetics Archeology Experimental and Cognitive Psychology
Journals: Nature Science Cell
Partner nations: Iceland United Kingdom United States

In The Last Decade

Agnar Helgason

58 papers receiving 4.2k 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.

The nature of nurture: Effects of parental genotypes

2018 519 citations Augustine Kong, Guðmar Þorleifsson et al. Science profile →

Peers

Countries citing papers authored by Agnar Helgason

Since Specialization

Citations

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

Fields of papers citing papers by Agnar Helgason

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Agnar Helgason

This figure shows the co-authorship network connecting the top 25 collaborators of Agnar Helgason. A scholar is included among the top collaborators of Agnar Helgason 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 Agnar Helgason. Agnar Helgason 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	The rate and nature of mitochondrial DNA mutations in human pedigrees 2024 ·Cell ·(unknown),Kristjan H. S. Moore,(unknown),S. Sunna Ebenesersdóttir,Kamran Guity,Hákon Jónsson,Kāri Stefánsson,Agnar Helgason	17
2	Characterizing the evolution and phenotypic impact of ampliconic Y chromosome regions 2023 ·Nature Communications ·(unknown),(unknown),Jacob Malte Jensen,Laurits Skov,(unknown),Kristian Almstrup,Mikkel Heide Schierup,Agnar Helgason,Kāri Stefánsson	1
3	Genomic diversity and differentiation between island and mainland populations of white‐tailed eagles (Haliaeetus albicilla) 2023 ·Molecular Ecology ·(unknown),Áki J. Láruson,Jacob Agerbo Rasmussen,(unknown),Mikkel‐Holger S. Sinding,Gunnar Þór Hallgrímsson,Menja von Schmalensee,Róbert A. Stefánsson,(unknown),Aili Lage Labansen,(unknown),Christian Sonne,Runé Dietz,(unknown),David Boertmann,Igor Eulaers,Michael D. Martin,Agnar Helgason,M. Thomas P. Gilbert,Snæbjörn Pálsson	0
4	A population-based survey of FBN1 variants in Iceland reveals underdiagnosis of Marfan syndrome 2023 ·European Journal of Human Genetics ·(unknown),Gudny A. Arnadottir,Brynjar Ö. Jensson,Aðalbjörg Jónasdóttir,Hildigunnur Katrínardóttir,Rún Friðriksdóttir,Áslaug Jónasdóttir,Ásgeir Sigurðsson,Sigurjón A. Guðjónsson,Jón J. Jónsson,Vigdís Stefánsdóttir,Ragnar Daníelsen,Ástríður Pálsdóttir,Hákon Jónsson,Agnar Helgason,Ólafur Þ. Magnússon,Unnur Þorsteinsdóttir,Hans T. Björnsson,Kāri Stefánsson,Patrick Sulem	4
5	The nature of Neanderthal introgression revealed by 27,566 Icelandic genomes 2020 ·Nature ·Laurits Skov,(unknown),Garðar Sveinbjörnsson,Fabrizio Mafessoni,(unknown),(unknown),Hákon Jónsson,Bjarni V. Halldórsson,Daníel F. Guðbjartsson,Agnar Helgason,Mikkel Heide Schierup,Kāri Stefánsson	56
6	The mother’s risk of premature death after child loss across two centuries 2019 ·eLife ·Unnur Valdimarsdóttir,Donghao Lu,Sigrún H. Lund,Katja Fall,Fang Fang,Þórður Kristjánsson,Daníel F. Guðbjartsson,Agnar Helgason,Kāri Stefánsson	8
7	The nature of nurture: Effects of parental genotypesbreakdown → 2018 ·Science ·Augustine Kong,Guðmar Þorleifsson,Michael L. Frigge,Bjarni J. Vilhjálmsson,Alexander I. Young,Thorgeir E. Thorgeirsson,Stefania Benónísdóttir,Ásmundur Oddsson,Bjarni V. Halldórsson,Gísli Másson,Daníel F. Guðbjartsson,Agnar Helgason,Gyða Björnsdóttir,Unnur Þorsteinsdóttir,Kāri Stefánsson	519
8	Reconstructing an African haploid genome from the 18th century 2018 ·Nature Genetics ·Anuradha Jagadeesan,Ellen D. Gunnarsdóttir,S. Sunna Ebenesersdóttir,(unknown),(unknown),(unknown),Hákon Jónsson,Jean‐Michel Dugoujon,Cesar Fortes‐Lima,Florence Migot‐Nabias,Achille Massougbodji,Gil Bellis,Luı́sa Pereira,Gísli Másson,Augustine Kong,Kāri Stefánsson,Agnar Helgason	11
9	Diversity in non-repetitive human sequences not found in the reference genome 2017 ·Nature Genetics ·Birte Kehr,Anna Helgadóttir,Páll Melsted,Hákon Jónsson,Hannes Helgason,Aðalbjörg Jónasdóttir,Áslaug Jónasdóttir,Ásgeir Sigurðsson,Arnaldur Gylfason,Gísli H. Halldórsson,Snædís Kristmundsdóttir,Guðmundur Þorgeirsson,Ísleifur Ólafsson,Hilma Hólm,Unnur Þorsteinsdóttir,Patrick Sulem,Agnar Helgason,Daníel F. Guðbjartsson,Bjarni V. Halldórsson,Kāri Stefánsson	38
10	Reproductive fitness and genetic risk of psychiatric disorders in the general population 2017 ·Nature Communications ·Niamh Mullins,Andrés Ingason,(unknown),Jack Euesden,Alexandra C. Gillett,Sigurgeir Ólafsson,Daníel F. Guðbjartsson,Cathryn M. Lewis,Engilbert Sigurðsson,Evald Sæmundsen,Ólafur Ó. Guðmundsson,Michael L. Frigge,Augustine Kong,Agnar Helgason,G. Bragi Walters,Ómar Gústafsson,Hreinn Stefánsson	23
11	Physical and neurobehavioral determinants of reproductive onset and success 2016 ·Nature Genetics ·Felix R. Day,Hannes Helgason,Daniel I. Chasman,Lynda M. Rose,Po‐Ru Loh,Robert A. Scott,Agnar Helgason,Augustine Kong,Gísli Másson,Ólafur Þ. Magnússon,Daníel F. Guðbjartsson,Unnur Þorsteinsdóttir,Julie E. Buring,Paul M. Ridker,Patrick Sulem,Kāri Stefánsson,Ken K. Ong,John R. B. Perry	80
12	Sequence variants from whole genome sequencing a large group of Icelanders 2015 ·Scientific Data ·Daníel F. Guðbjartsson,Patrick Sulem,Hannes Helgason,Arnaldur Gylfason,Sigurjón A. Guðjónsson,Florian Zink,Asmundur Oddson,Gísli Magnússon,Bjarni V. Halldórsson,Eirikur Hjartarson,Gunnar Sigurðsson,Augustine Kong,Agnar Helgason,Gísli Másson,Ólafur Þ. Magnússon,Unnur Þorsteinsdóttir,Kāri Stefánsson	31
13	A new subclade of mtDNA haplogroup C1 found in icelanders: Evidence of pre‐columbian contact? 2010 ·American Journal of Physical Anthropology ·S. Sunna Ebenesersdóttir,Ásgeir Sigurðsson,Federico Sánchez‐Quinto,Carles Lalueza‐Fox,Kāri Stefánsson,Agnar Helgason	16
14	The Impact of Divergence Time on the Nature of Population Structure: An Example from Iceland 2009 ·PLoS Genetics ·Alkes L. Price,Agnar Helgason,Snæbjörn Pálsson,Hreinn Stefánsson,David St Clair,Ole A. Andreassen,David Reich,Augustine Kong,Kāri Stefánsson	65
15	Lessons from the past: Familial aggregation analysis of fatal pandemic influenza (Spanish flu) in Iceland in 1918 2008 ·Proceedings of the National Academy of Sciences ·Magnús Gottfreðsson,Bjarni V. Halldórsson,S. Jönsson,Már Kristjánsson,Kristleifur Kristjánsson,Karl G. Kristinsson,(unknown),Þorsteinn Blöndal,Cécile Viboud,Sverrir Thorvaldsson,Agnar Helgason,Jeffrey R. Gulcher,Hreinn Stefánsson,Ingileif Jónsdóttir	50
16	CDKN2A mutations and melanoma risk in the Icelandic population 2008 ·Journal of Medical Genetics ·Alisa M. Goldstein,Simon Stacey,Jón Ólafsson,Guðbjörn F. Jónsson,Agnar Helgason,Patrick Sulem,Bárður Sigurgeirsson,Kristrún R. Benediktsdóttir,Kristin Thorisdottir,Rafn Ragnarsson,Jens Kjartansson,Jovana Kostić,Gísli Másson,Kristleifur Kristjánsson,Jeffery R. Gulcher,Augustine Kong,U. Thorsteinsdottir,Þórunn Rafnar,Margaret A. Tucker,Kāri Stefánsson	21
17	The BARD1 Cys557Ser Variant and Breast Cancer Risk in Iceland 2006 ·PLoS Medicine ·Simon Stacey,Patrick Sulem,Oskar T. Johannsson,Agnar Helgason,Jūlı́us Guðmundsson,Jelena P. Kostic,Kristleifur Kristjánsson,Thora Elisabet Jonsdottir,Helgi Sigurðsson,Jón Hrafnkelsson,Jakob Jóhannsson,Þórarinn Sveinsson,(unknown),(unknown),Jón Þór Bergþorsson,Laufey T. Ámundadóttir,Jeffrey R. Gulcher,Unnur Þorsteinsdóttir,Augustine Kong,Kāri Stefánsson	47
18	An Icelandic example of the impact of population structure on association studies 2004 ·Nature Genetics ·Agnar Helgason,Bryndís Yngvadóttir,Birgir Hrafnkelsson,Jeffrey R. Gulcher,Kāri Stefánsson	201
19	Blondes, Lost and Found: Representations of Genes, Identity, and History 2003 ·Developing World Bioethics ·Gı́sli Pálsson,Agnar Helgason	8
20	Prion susceptibility and protective alleles exhibit marked geographic differences 2003 ·Human Mutation ·(unknown),Francesc Calafell,Aida M. Andrés,Jordi Yagüe,Agnar Helgason,Hreinn Stefánsson,Jaume Bertranpetit	41

About Agnar Helgason

Agnar Helgason is a scholar working on Genetics, Anthropology and Archeology, having authored 59 papers that have together received 4.4k indexed citations. Recurring topics across this work include Forensic and Genetic Research (16 papers), Genetic diversity and population structure (14 papers) and Genetic Associations and Epidemiology (12 papers). The work is most often cited by research in Genetics (2.7k citations), Archeology (336 citations) and Experimental and Cognitive Psychology (291 citations). Agnar Helgason has collaborated with scholars based in Iceland, United Kingdom and United States. Frequent co-authors include Kāri Stefánsson, Augustine Kong, Jeffrey R. Gulcher, Daníel F. Guðbjartsson, Gísli Másson, Unnur Þorsteinsdóttir, Gı́sli Pálsson, Guðmar Þorleifsson, Ryk Ward and Sigrún Sigurðardóttir. Their work appears in journals such as Nature, Science and Cell.

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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