May 14, 2024

Genetic Jigsaw: Piecing Together the Human Pangenome

Dr. Eimear Kenny has substantially contributed to the production of an inclusive human pangenome reference, led by the international Human Pangenome Reference Consortium. The recommendation presently includes genomes of 47 people, intending to reach 350 by 2024. This endeavor looks for to represent human genetic diversity more properly, helping disease diagnosis and treatment, and lessening health disparities.
Dr. Eimear Kenny, a renowned teacher of Medicine, Genetics, and Genomic Sciences at the Icahn School of Medicine at Mount Sinai, has made considerable contributions to the global Human Pangenome Reference Consortium, leading to the creation of a more inclusive human pangenome reference.
Eimear Kenny, PhD, had just finished undergrad and was operating in her very first computational genomics task more than 20 years back when scientists revealed the first (almost) complete sequencing of the human genome– what was thought about at the time to be the fundamental plan for all human beings. The Human Genome Project aimed to map the entire genome in an effort to speed up the medical diagnosis and eventual treatment of unusual and typical diseases.
Now, Dr. Kenny, a Professor of Medicine, and Genetics and Genomic Sciences, at the Icahn School of Medicine at Mount Sinai, can count herself as one of a handful of elite researchers around the world whose essential contributions have led to the creation of the new human “pangenome” recommendation, a collection of genome sequences that records significantly more human variety.

Information on these novel developments were described in a number of Nature documents released last month. The work was led by the international Human Pangenome Reference Consortium, a group funded by the National Human Genome Research Institute (NHGRI), part of the National Institutes of Health. Dr. Kenny is a Principal Investigator and lead researcher of the consortium.
The new pangenome referral is a collection of various genomes from which to compare an individual genome series. Like a map of the subway system, the pangenome graph has lots of possible paths for a series to take, represented by the various colors. Credit: National Human Genome Research Institute
Genome sequences differ a little amongst people. In the case of people, any two individuals genomes are, on average, more than 99 percent similar.
” We have had a single human referral for the past 20 years, and this genome recommendation has actually been extraordinarily powerful. It is a resource that has actually driven the sequencing of the genomes of 10s or hundreds of millions of humans on the planet,” states Dr. Kenny, Professor of Medicine, and Genetics and Genomics Sciences at the Icahn School of Medicine at Mount Sinai, who is a co-author of the work. “However, it is limited because many of the recommendation series just represents one person on earth, so when you have rarer series or just in specific people, they are not represented. Therefore, we needed to truly think of how to update the human referral and make it much more representative of diverse people all over the world, which is what we have actually now done.”
The new pangenome recommendation includes genome series of 47 individuals, and the researchers aim to increase that number to 350 by mid-2024. Since each individual brings a paired set of chromosomes, the present recommendation consists of 94 unique genome sequences, with a goal of reaching 700 unique genome sequences by the conclusion of the task.
” Basic researchers and clinicians who use genomics need access to a referral sequence that reflects the exceptional diversity of the human population. This will help make the reference helpful for all individuals, thereby helping to minimize the chances of propagating health disparities,” states Eric Green, MD, PhD, NHGRI director. “Creating and enhancing a human pangenome reference aligns with NHGRIs goal of pursuing worldwide variety in all elements of genomics research, which is important to advance genomic knowledge and carry out genomic medication in a fair way.”
Dr. Kenny, who is also Founding Director of the Institute for Genomic Health at Icahn Mount Sinai, leads research at the interface of genomics, medicine, and computer system science to accelerate making use of genomics info in regular scientific care to improve human health.
She utilizes artificial intelligence approaches and massive-scale databases of genomic information for discovery of novel hereditary variations impacting disease risk. She likewise oversees large scientific trials in on implementing genomic medicine in varied populations.
That know-how has actually paid off.
” Across lots of people, my role in this consortium was to contribute to this worldwide scientific effort, and, in particular, help pick the genomes that comprise the brand-new pangenome referral so that this resource would best benefit lots of people around the planet,” she states.
Dr. Kenny co-led a group utilizing population genetics techniques, community engagement, and outreach to include genomes from varied populations in the pangenome. This will help resolve concerns of underrepresentation and predisposition in genomics research, and can enhance the accuracy and generalizability of research study findings throughout different populations.
The Human Genome Project completed in 2003 covered about 92 percent of the total human genome series. Current technological advances such as long-read DNA sequencing, which checks out longer stretches of the DNA at a time, assisted researchers fill out those gaps to develop the first complete human genome series. The developments were reported in a set of six documents in the April 1, 2022, concern of Science, together with companion papers released in several other journals. These findings were incorporated into the existing pangenome reference.
” Im happy about the improvements in genomics innovation that we have today. This new age of long-read sequencing, together with other capabilities, permits us to get much greater resolution of genomic series and, in particular, more properly recognize larger genomic variants called structural variants, which have actually been previously very hard to spot with the short-read technology. This has enabled us to speed up the rate at which we can discover clinically relevant versions and considerably decrease sequencing costs,” says Dr. Kenny.
Notably, understanding these variations much better, Dr. Kenny states, will help illuminate which genes are really rare or whether they may just be more typical in specific parts of the world.
” The other substantial element is that we are truly attempting to make a resource that is really working towards international representativeness. We need to have a path toward recognizing that humans all over in the world requirement resources readily available to them that best work for them,” says Dr. Kenny.
For more on this development, see:

Dr. Eimear Kenny has actually significantly contributed to the production of an inclusive human pangenome reference, led by the global Human Pangenome Reference Consortium. The work was led by the international Human Pangenome Reference Consortium, a group funded by the National Human Genome Research Institute (NHGRI), part of the National Institutes of Health.” We have had a single human referral for the past 20 years, and this genome recommendation has actually been extremely powerful. We needed to truly believe about how to update the human recommendation and make it much more representative of varied humans all over the world, which is what we have actually now done.”
The Human Genome Project finished in 2003 covered about 92 percent of the total human genome series.

” A draft human pangenome recommendation” by Wen-Wei Liao, Mobin Asri, Jana Ebler, Daniel Doerr, Marina Haukness, Glenn Hickey, Shuangjia Lu, Julian K. Lucas, Jean Monlong, Haley J. Abel, Silvia Buonaiuto, Xian H. Chang, Haoyu Cheng, Justin Chu, Vincenza Colonna, Jordan M. Eizenga, Xiaowen Feng, Christian Fischer, Robert S. Fulton, Shilpa Garg, Cristian Groza, Andrea Guarracino, William T. Harvey, Simon Heumos, Kerstin Howe, Miten Jain, Tsung-Yu Lu, Charles Markello, Fergal J. Martin, Matthew W. Mitchell, Katherine M. Munson, Moses Njagi Mwaniki, Adam M. Novak, Hugh E. Olsen, Trevor Pesout, David Porubsky, Pjotr Prins, Jonas A. Sibbesen, Jouni Sirén, Chad Tomlinson, Flavia Villani, Mitchell R. Vollger, Lucinda L. Antonacci-Fulton, Gunjan Baid, Carl A. Baker, Anastasiya Belyaeva, Konstantinos Billis, Andrew Carroll, Pi-Chuan Chang, Sarah Cody, Daniel E. Cook, Robert M. Cook-Deegan, Omar E. Cornejo, Mark Diekhans, Peter Ebert, Susan Fairley, Olivier Fedrigo, Adam L. Felsenfeld, Giulio Formenti, Adam Frankish, Yan Gao, Nanibaa A. Garrison, Carlos Garcia Giron, Richard E. Green, Leanne Haggerty, Kendra Hoekzema, Thibaut Hourlier, Hanlee P. Ji, Eimear E. Kenny, Barbara A. Koenig, Alexey Kolesnikov, Jan O. Korbel, Jennifer Kordosky, Sergey Koren, HoJoon Lee, Alexandra P. Lewis, Hugo Magalhães, Santiago Marco-Sola, Pierre Marijon, Ann McCartney, Jennifer McDaniel, Jacquelyn Mountcastle, Maria Nattestad, Sergey Nurk, Nathan D. Olson, Alice B. Popejoy, Daniela Puiu, Mikko Rautiainen, Allison A. Regier, Arang Rhie, Samuel Sacco, Ashley D. Sanders, Valerie A. Schneider, Baergen I. Schultz, Kishwar Shafin, Michael W. Smith, Heidi J. Sofia, Ahmad N. Abou Tayoun, Françoise Thibaud-Nissen, Francesca Floriana Tricomi, Justin Wagner, Brian Walenz, Jonathan M. D. Wood, Aleksey V. Zimin, Guillaume Bourque, Mark J. P. Chaisson, Paul Flicek, Adam M. Phillippy, Justin M. Zook, Evan E. Eichler, David Haussler, Ting Wang, Erich D. Jarvis, Karen H. Miga, Erik Garrison, Tobias Marschall, Ira M. Hall, Heng Li and Benedict Paten, 10 May 2023, Nature.DOI: 10.1038/ s41586-023-05896-x.
” Increased anomaly rate and gene conversion within human segmental duplications” by Mitchell R. Vollger, Philip C. Dishuck, William T. Harvey, William S. DeWitt, Xavi Guitart, Michael E. Goldberg, Allison N. Rozanski, Julian Lucas, Mobin Asri, Human Pangenome Reference Consortium, Katherine M. Munson, Alexandra P. Lewis, Kendra Hoekzema, Glennis A. Logsdon, David Porubsky, Benedict Paten, Kelley Harris, PingHsun Hsieh and Evan E. Eichler, 10 May 2023. Nature.DOI: 10.1038/ s41586-023-05895-y.
” Recombination between heterologous human acrocentric chromosomes” by Andrea Guarracino, Silvia Buonaiuto, Leonardo Gomes de Lima, Tamara Potapova, Arang Rhie, Sergey Koren, Boris Rubinstein, Christian Fischer, Human Pangenome Reference Consortium, Jennifer L. Gerton, Adam M. Phillippy, Vincenza Colonna and Erik Garrison, 10 May 2023, Nature.DOI: 10.1038/ s41586-023-05976-y.
” Pangenome graph construction from genome positioning with minigraph-cactus” by Glenn Hickey, Jean Monlong, Jana Ebler, Adam M. Novak, Jordan M. Eizenga, Yan Gao, Human Pangenome Reference Consortium, Tobias Marschall, Heng Li and Benedict Paten, 10 May 2023, Nature Biotechnology.DOI: 10.1038/ s41587-023-01793-w.