The time is ripe to investigate human centromeres by long-read sequencing
Author(s) -
Yuta Suzuki,
Shinichi Morishita
Publication year - 2021
Publication title -
dna research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.647
H-Index - 98
eISSN - 1756-1663
pISSN - 1340-2838
DOI - 10.1093/dnares/dsab021
Subject(s) - centromere , biology , sequence (biology) , satellite , computational biology , repeated sequence , chromosome , genetics , genome , gene , engineering , aerospace engineering
The complete sequencing of human centromeres, which are filled with highly repetitive elements, has long been challenging. In human centromeres, α-satellite monomers of about 171 bp in length are the basic repeating units, but α-satellite monomers constitute the higher-order repeat (HOR) units, and thousands of copies of highly homologous HOR units form large arrays, which have hampered sequence assembly of human centromeres. Because most HOR unit occurrences are covered by long reads of about 10 kb, the recent availability of much longer reads is expected to enable observation of individual HOR occurrences in terms of their single-nucleotide or structural variants. The time has come to examine the complete sequence of human centromeres.
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