6種の類人猿の完全なゲノム配列を公開(Complete genome sequences of six ape species unveiled)

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2025-04-09 ペンシルベニア州立大学(Penn State)

ペンシルベニア州立大学などの国際研究チームは、6種の類人猿(チンパンジー、ボノボ、ゴリラ、ボルネオ/スマトラオランウータン、シアマン)の完全ゲノム配列を初めて解読・公開しました。最新の長鎖DNAシーケンシング技術と改良されたアルゴリズムにより、従来解析が困難だった領域も含め、染色体全長にわたる精密な配列が得られました。このデータは、新たな種特異的遺伝子や免疫応答・代謝関連の進化的特徴を明らかにし、人間特有の知能や疾患の理解、さらには絶滅危惧種の保全遺伝学にも貢献します。成果は『Nature』誌に掲載されました。

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類人猿ゲノムの完全解読 Complete sequencing of ape genomes

DongAhn Yoo,Arang Rhie,Prajna Hebbar,Francesca Antonacci,Glennis A. Logsdon,Steven J. Solar,Dmitry Antipov,Brandon D. Pickett,Yana Safonova,Francesco Montinaro,Yanting Luo,Joanna Malukiewicz,Jessica M. Storer,Jiadong Lin,Abigail N. Sequeira,Riley J. Mangan,Glenn Hickey,Graciela Monfort Anez,Parithi Balachandran,Anton Bankevich,Christine R. Beck,Arjun Biddanda,Matthew Borchers,Gerard G. Bouffard,… Evan E. Eichler
Nature  Published:09 April 2025
DOI:https://doi.org/10.1038/s41586-025-08816-3

6種の類人猿の完全なゲノム配列を公開(Complete genome sequences of six ape species unveiled)

Abstract

The most dynamic and repetitive regions of great ape genomes have traditionally been excluded from comparative studies. Consequently, our understanding of the evolution of our species is incomplete. Here we present haplotype-resolved reference genomes and comparative analyses of six ape species: chimpanzee, bonobo, gorilla, Bornean orangutan, Sumatran orangutan and siamang. We achieve chromosome-level contiguity with substantial sequence accuracy (<1 error in 2.7 megabases) and completely sequence 215 gapless chromosomes telomere-to-telomere. We resolve challenging regions, such as the major histocompatibility complex and immunoglobulin loci, to provide in-depth evolutionary insights. Comparative analyses enabled investigations of the evolution and diversity of regions previously uncharacterized or incompletely studied without bias from mapping to the human reference genome. Such regions include newly minted gene families in lineage-specific segmental duplications, centromeric DNA, acrocentric chromosomes and subterminal heterochromatin. This resource serves as a comprehensive baseline for future evolutionary studies of humans and our closest living ape relatives.

生物工学一般
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