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Y chromosome sequence and epigenomic reconstruction across human populations
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Y chromosome sequence and epigenomic reconstruction across human populations
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Journal Article
Y chromosome sequence and epigenomic reconstruction across human populations
2023
Overview
Recent advances in long-read sequencing technologies have allowed the generation and curation of more complete genome assemblies, enabling the analysis of traditionally neglected chromosomes, such as the human Y chromosome (chrY). Native DNA was sequenced on a MinION Oxford Nanopore Technologies sequencing device to generate genome assemblies for seven major chrY human haplogroups. We analyzed and compared the chrY enrichment of sequencing data obtained using two different selective sequencing approaches: adaptive sampling and flow cytometry chromosome sorting. We show that adaptive sampling can produce data to create assemblies comparable to chromosome sorting while being a less expensive and time-consuming technique. We also assessed haplogroup-specific structural variants, which would be otherwise difficult to study using short-read sequencing data only. Finally, we took advantage of this technology to detect and profile epigenetic modifications among the considered haplogroups. Altogether, we provide a framework to study complex genomic regions with a simple, fast, and affordable methodology that could be applied to larger population genomics datasets.
This study generates genome assemblies for seven major haplogroups of the human Y chromosome at a unique resolution that overcomes the structurally complex regions within. These data enable the detection and profiling of epigenetic modifications among the considered haplogroups.
Publisher
Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio
Subject
