T2T-CHM13 v2.0 Y-Chromosome Alignment Dataset for Sample ALTS048W

T2T-CHM13 v2.0 Y-Chromosome Remapping and Analysis of Ancient Sample ALTS048WSample Details & MetadataSample ID: ALTS048W Sample type: Ancient DNA (male)Geographic origin: Altai Krai, Russia (ALTS population group)Archaeological context / culture: Scytho-Siberian / Early Turkic period (4th–8th century CE)Data source: Ancient human genomes from the Altai region reveal population continuity and shifts in the 4th–12th centuries (bioRxiv preprint, 2026; https://www.biorxiv.org/content/10.64898/2026.03.24.713889v1Y-chromosome coverage parameters: Coverage — 29.76 %, Average depth — 2.0×Lineage & Haplogroup AssignmentY-DNA haplogroup (T2T-based): R-Y20756 (R1b subclade)mtDNA haplogroup: J2b1a2aAutosomal Proportions & Admixture ProfileE11: 32.05 % European, 20.97 % India, 16.57 % Yakut, 15.13 % American, 10.06 % North Chinese Oroqen, 5.23 % Southwest Chinese Yi. K47: Predominantly Uralic (14.73 %), Turkic-Altai (11.95 %), Pamirian (11.63 %), East-Euro (11.04 %), Volgan (7.08 %), and NW-Indian (6.87 %). K12b: North European (40.41 %) and Siberian (28.76 %), followed by Gedrosia (17.87 %) and East Asian (6.26 %). AncientNear East13: High proportions of EHG (23.54 %), Siberian (19.12 %), Ancestral-Indian (12.03 %), SHG-WHG (10.67 %), and Iran-Neolithic (9.35 %). ProLi14: Main contributions from Old East Euro (Karelia, 33.79 %), Old Mongolia North (20.54 %), and Chemurchek (12.06 %).Identified Variants and T2T Candidates Remapping to the CP086569.2 / T2T-CHM13 v2.0 reference genome identified 20 private SNPs. Of these, 4 correspond to previously named SNPs, while 16 represent novel candidates located in T2T-specific regions (unmapped or unreliably mapped in hg19/hg38).1. Previously named SNPs (4) TYT389343 / MF725732 (T2T: 16331267, G→A, Depth 4×, Qual 73.29, hg38: 15424751) C106522 (T2T: 15748922, C→T, Depth 4×, Qual 154.42, hg38: 14842359) TYT303515 / MF654128 (T2T: 3225253, C→T, Depth 3×, Qual 69.19, hg38: 3548060) C140045 (T2T: 4529043, G→A, Depth 3×, Qual 66.35, hg38: 4849541) 2. Novel T2T-specific candidates (16)Private candidates located in newly assembled regions of the Y chromosome (hg38 / hg19 = 0): T2T Pos 28639686 (C→T) — Depth 10×, Quality 197.42 (high-confidence novel SNP) T2T Pos 12234276 (G→A) — Depth 4×, Quality 151.42 T2T Pos 7540276 (G→A) — Depth 4×, Quality 149.42 T2T Pos 3155056 (A→G) — Depth 5×, Quality 136.21 T2T Pos 14857638 (A→G) — Depth 4×, Quality 92.42 T2T Pos 11912252 (C→T) — Depth 4×, Quality 89.42 T2T Pos 32037734 (A→T) — Depth 13×, Quality 82.40 T2T Pos 20722085 (G→A) — Depth 3×, Quality 77.35 T2T Pos 29073302 (G→A) — Depth 10×, Quality 74.41 T2T Pos 7516542 (C→T) — Depth 4×, Quality 73.29 T2T Pos 8526531 (A→G) — Depth 4×, Quality 73.29 T2T Pos 16395670 (A→C) — Depth 3×, Quality 67.16 T2T Pos 16395674 (C→A) — Depth 3×, Quality 67.16 T2T Pos 15775006 (C→A) — Depth 4×, Quality 64.28 T2T Pos 6994337 (C→T) — Depth 3×, Quality 64.10 T2T Pos 61360601 (T→C) — Depth 10×, Quality 57.10 Note on data validityThese remapping results are preliminary. Due to the low average coverage typical of ancient DNA (2.0× for this sample), all identified novel private SNPs and candidates require independent confirmation and validation before they can be considered fully verified.