Bohan Ni

ORCID: 0000-0002-8570-6103
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About
Contact & Profiles
Research Areas
  • Genomics and Phylogenetic Studies
  • Genomics and Rare Diseases
  • Genomics and Chromatin Dynamics
  • Epigenetics and DNA Methylation
  • RNA modifications and cancer
  • Telomeres, Telomerase, and Senescence
  • RNA and protein synthesis mechanisms
  • Genetic Associations and Epidemiology
  • Cancer Genomics and Diagnostics
  • Bioinformatics and Genomic Networks
  • Genetic Mapping and Diversity in Plants and Animals
  • Genomic variations and chromosomal abnormalities
  • Gene expression and cancer classification
  • Cancer-related molecular mechanisms research
  • CRISPR and Genetic Engineering

Johns Hopkins University
2020-2025

Genome in a Bottle benchmarks are widely used to help validate clinical sequencing pipelines and develop variant calling methods. Here we use accurate linked long reads expand 7 samples include difficult-to-map regions segmental duplications that challenging for short reads. These add more than 300,000 SNVs 50,000 insertions or deletions (indels) 16% exonic variants, many challenging, clinically relevant genes not covered previously, such as PMS2. For HG002, 92% of the autosomal GRCh38...

10.1016/j.xgen.2022.100128 article EN cc-by Cell Genomics 2022-04-28

Rare structural variants (SVs)-insertions, deletions, and complex rearrangements-can cause Mendelian disease, yet they remain difficult to accurately detect interpret. We sequenced analyzed Oxford Nanopore Technologies long-read genomes of 68 individuals from the undiagnosed disease network (UDN) with no previously identified diagnostic mutations short-read sequencing. Using our optimized SV detection pipelines 571 control genomes, we detected 716 rare (MAF < 0.01) alleles per genome on...

10.1101/gr.279323.124 article EN cc-by-nc Genome Research 2025-03-20

Rare structural variants (SVs) – insertions, deletions, and complex rearrangements can cause Mendelian disease, yet they remain difficult to accurately detect interpret. We sequenced analyzed Oxford Nanopore long-read genomes of 68 individuals from the Undiagnosed Disease Network (UDN) with no previously identified diagnostic mutations short-read sequencing. Using our optimized SV detection pipelines 571 control genomes, we detected 716 rare (MAF &lt; 0.01) alleles per genome on average,...

10.1101/2024.03.22.24304565 preprint EN cc-by-nc-nd medRxiv (Cold Spring Harbor Laboratory) 2024-03-26

Summary Genome in a Bottle (GIAB) benchmarks have been widely used to help validate clinical sequencing pipelines and develop new variant calling methods. Here, we use accurate linked reads long expand the prior 7 samples include difficult-to-map regions segmental duplications that are not readily accessible short reads. Our benchmark adds more than 300,000 SNVs, 50,000 indels, 16 % exonic variants, many challenging, clinically relevant genes previously covered (e.g., PMS2 ). For HG002, 92%...

10.1101/2020.07.24.212712 preprint EN bioRxiv (Cold Spring Harbor Laboratory) 2020-07-25

Abstract The increasing availability of long-reads is revolutionizing studies structural variants (SVs). However, because SVs vary across individuals and are discovered through imprecise read technologies methods, they can be difficult to compare. Addressing this, we present Jasmine ( https://github.com/mkirsche/Jasmine ), a fast accurate method for SV refinement, comparison, population analysis. Using an proximity graph, outperforms five widely-used comparison including reducing the rate...

10.1101/2021.05.27.445886 preprint EN cc-by bioRxiv (Cold Spring Harbor Laboratory) 2021-05-28

Abstract ReadUntil sequencing allows nanopore devices to selectively eject individual reads from the pore in real-time. This could enable purely computational targeted sequencing, however most mapping methods require basecalling, which is computationally intensive. Here we present UNCALLED ( github.com/skovaka/UNCALLED ), an open-source mapper that rapidly matches streaming current signals a reference sequence. probabilistically considers k-mers signal represent, and then prunes candidates...

10.1101/2020.02.03.931923 preprint EN cc-by bioRxiv (Cold Spring Harbor Laboratory) 2020-02-03

Each human genome has tens of thousands rare genetic variants; however, identifying impactful variants remains a major challenge. We demonstrate how use personal multi-omics can enable identification by using the Multi-Ethnic Study Atherosclerosis, which included several hundred individuals, with whole-genome sequencing, transcriptomes, methylomes, and proteomes collected across two time points, 10 years apart. evaluated each phenotype's ability to separately jointly inform functional...

10.1016/j.xgen.2023.100401 article EN cc-by Cell Genomics 2023-09-06
Rebecca Keener Surya B. Chhetri Carla J. Connelly Margaret A. Taub Matthew P. Conomos and 93 more Joshua S. Weinstock Bohan Ni Benjamin J. Strober Stella Aslibekyan Paul L. Auer Lucas Barwick Lewis C. Becker John Blangero Eugene R. Bleecker Jennifer A. Brody Brian E. Cade Juan C. Celedón Yi‐Cheng Chang L. Adrienne Cupples Brian Custer Barry I. Freedman Mark T. Gladwin Susan R. Heckbert Lifang Hou Marguerite R. Irvin Carmen R. Isasi Jill M. Johnsen Eimear E. Kenny Charles Kooperberg Ryan L. Minster Take Naseri Satupaitea Viali Sergeï Nekhai Nathan Pankratz Patricia A. Peyser Kent D. Taylor Marilyn J. Telen Baojun Wu Lisa R. Yanek Ivana V. Yang Christine M. Albert Donna K. Arnett Allison E. Ashley‐Koch Kathleen C. Barnes Joshua C. Bis Thomas W. Blackwell Eric Boerwinkle Esteban G. Burchard April P. Carson Zhanghua Chen Yii‐Der Ida Chen Dawood Darbar Mariza de Andrade Patrick T. Ellinor Myriam Fornage Bruce D. Gelb Frank D. Gilliland Jiang He Talat Islam Stefan Kääb Sharon L. R. Kardia Shannon Kelly Barbara A. Konkle Rajesh Kumar Ruth J. F. Loos Fernando D. Martínez Stephen T. McGarvey Deborah A. Meyers Braxton D. Mitchell Courtney G. Montgomery Kari E. North Nicholette D. Palmer Juan M. Peralta Benjamin A. Raby Susan Redline Stephen S. Rich Dan M. Roden Jerome I. Rotter Ingo Ruczinski David B. Schwartz Frank C. Sciurba M. Benjamin Shoemaker Edwin K. Silverman Moritz F. Sinner Nicholas L. Smith Albert V. Smith Hemant K. Tiwari Ramachandran S. Vasan Scott T. Weiss Lawrence K. Williams Yingze Zhang Elad Ziv Laura M. Raffield Alexander P. Reiner Marios Arvanitis Carol W. Greider Rasika A. Mathias Alexis Battle

10.17615/vs68-ca81 article EN cc-by Carolina Digital Repository (University of North Carolina at Chapel Hill) 2024-05-24
Rebecca Keener Surya B. Chhetri Carla J. Connelly Margaret A. Taub Matthew P. Conomos and 91 more Joshua S. Weinstock Bohan Ni Benjamin J. Strober Stella Aslibekyan Paul L. Auer Lucas Barwick Lewis C. Becker John Blangero Eugene R. Bleecker Jennifer A. Brody Brian E. Cade Juan C. Celedón Yi‐Cheng Chang L. Adrienne Cupples Brian Custer Barry I. Freedman Mark T. Gladwin Susan R. Heckbert Lifang Hou Marguerite R. Irvin Carmen R. Isasi Jill M. Johnsen Eimear E. Kenny Charles Kooperberg Ryan L. Minster Sergeï Nekhai Nathan Pankratz Patricia A. Peyser Kent D. Taylor Marilyn J. Telen Baojun Wu Lisa R. Yanek Ivana V. Yang Christine M. Albert Donna K. Arnett Allison E. Ashley‐Koch Kathleen C. Barnes Joshua C. Bis Thomas W. Blackwell Eric Boerwinkle Esteban G. Burchard April P. Carson Zhanghua Chen Yii‐Der Ida Chen Dawood Darbar Mariza de Andrade Patrick T. Ellinor Myriam Fornage Bruce D. Gelb Frank D. Gilliland Jiang He Talat Islam Stefan Kääb Sharon L. R. Kardia Shannon Kelly Barbara A. Konkle Rajesh Kumar Ruth J. F. Loos Fernando D. Martínez Stephen T. McGarvey Deborah A. Meyers Braxton D. Mitchell Courtney G. Montgomery Kari E. North Nicholette D. Palmer Juan M. Peralta Benjamin A. Raby Susan Redline Stephen S. Rich Daniel Roden Jerome I. Rotter Ingo Ruczinski David A. Schwartz Rank Sciurba M. Benjamin Shoemaker Edwin K. Silverman Moritz F. Sinner Nicholas L. Smith Albert V. Smith Hemant K. Tiwari Ramachandran S. Vasan Scott T. Weiss L. Keoki Williams Yingze Zhang Elad Ziv Laura M. Raffield Alexander P. Reiner Marios Arvanitis Carol W. Greider Rasika A. Mathias Alexis Battle

Abstract Telomere length genome-wide association studies (GWAS) have become well-powered to detect novel genes in telomere regulation. However, no prior work has validated these putative confirm the contribution of GWAS loci We conducted a trans-ancestry meta-analysis 211,369 individuals. Through enrichment analyses chromatin state and cell-type heritability we identified blood immune cells as most relevant cell type examine signals. specific associations by overexpressing KBTBD6 , component...

10.1101/2023.07.12.548702 preprint EN cc-by bioRxiv (Cold Spring Harbor Laboratory) 2023-07-14

Abstract Each human genome has tens of thousands rare genetic variants; however, identifying impactful variants remains a major challenge. We demonstrate how use personal multi-omics can enable identification by using the Multi-Ethnic Study Atherosclerosis (MESA) which included several hundred individuals with whole sequencing, transcriptomes, methylomes, and proteomes collected across two time points, ten years apart. evaluated each multi-omic phenotype’s ability to separately jointly...

10.1101/2022.09.07.507008 preprint EN cc-by-nc-nd bioRxiv (Cold Spring Harbor Laboratory) 2022-09-09
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