| Literature DB >> 35357911 |
Glennis A Logsdon1, Andrey V Bzikadze2, Pragya Sidhwani3, Sasha A Langley4, Gina V Caldas4, Nicolas Altemose4, Savannah J Hoyt5,6, Lev Uralsky7,8, Fedor D Ryabov9, Colin J Shew10, Michael E G Sauria11, Matthew Borchers12, Ariel Gershman13, Alla Mikheenko14, Valery A Shepelev8, Tatiana Dvorkina14, Olga Kunyavskaya14, Mitchell R Vollger1, Arang Rhie15, Ann M McCartney15, Mobin Asri16, Ryan Lorig-Roach16, Kishwar Shafin16, Julian K Lucas16, Sergey Aganezov17, Daniel Olson18, Leonardo Gomes de Lima12, Tamara Potapova12, Gabrielle A Hartley5,6, Marina Haukness16, Peter Kerpedjiev19, Fedor Gusev8, Kristof Tigyi16,20, Shelise Brooks21, Alice Young21, Sergey Nurk15, Sergey Koren15, Sofie R Salama16,20, Benedict Paten16,22, Evgeny I Rogaev7,8,23,24, Aaron Streets25,26, Gary H Karpen4,27, Abby F Dernburg4,20,28, Beth A Sullivan29, Aaron F Straight3, Travis J Wheeler18, Jennifer L Gerton12,30, Evan E Eichler1,20, Adam M Phillippy15, Winston Timp13,31, Megan Y Dennis10, Rachel J O'Neill5,6, Justin M Zook32, Michael C Schatz17, Pavel A Pevzner33, Mark Diekhans16, Charles H Langley34, Ivan A Alexandrov8,14,35, Karen H Miga16,22.
Abstract
Existing human genome assemblies have almost entirely excluded repetitive sequences within and near centromeres, limiting our understanding of their organization, evolution, and functions, which include facilitating proper chromosome segregation. Now, a complete, telomere-to-telomere human genome assembly (T2T-CHM13) has enabled us to comprehensively characterize pericentromeric and centromeric repeats, which constitute 6.2% of the genome (189.9 megabases). Detailed maps of these regions revealed multimegabase structural rearrangements, including in active centromeric repeat arrays. Analysis of centromere-associated sequences uncovered a strong relationship between the position of the centromere and the evolution of the surrounding DNA through layered repeat expansions. Furthermore, comparisons of chromosome X centromeres across a diverse panel of individuals illuminated high degrees of structural, epigenetic, and sequence variation in these complex and rapidly evolving regions.Entities:
Mesh:
Year: 2022 PMID: 35357911 PMCID: PMC9233505 DOI: 10.1126/science.abl4178
Source DB: PubMed Journal: Science ISSN: 0036-8075 Impact factor: 63.714