The Eastern side of the Westernmost Europeans: Insights from subclades within Y-chromosome haplogroup J-M304
| Autor: | Verónica Gomes, Ricardo Costa de Oliveira, Sofia L. Marques, Rui Martiniano, Maria Francisca Sousa, António Amorim, Licínio Manco, Maria João Prata, Joana Isabel Albuquerque, Luis Alvarez |
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| Rok vydání: | 2017 |
| Předmět: |
Genetic Markers
Male 0301 basic medicine Haplogroup M Population 030105 genetics & heredity Polymorphism Single Nucleotide Haplogroup 03 medical and health sciences Genetics Humans education Haplogroup D-M15 Alleles Ecology Evolution Behavior and Systematics education.field_of_study Chromosomes Human Y Portugal Haplotype Subclade Haplogroup L3 Haplogroup IJ Phylogeography 030104 developmental biology Geography Haplotypes Evolutionary biology Anthropology Anatomy Microsatellite Repeats |
| Zdroj: | American Journal of Human Biology. 30:e23082 |
| ISSN: | 1042-0533 |
| DOI: | 10.1002/ajhb.23082 |
| Popis: | Objectives We examined internal lineages and haplotype diversity in Portuguese samples belonging to J-M304 to improve the spatial and temporal understanding of the introduction of this haplogroup in Iberia, using the available knowledge about the phylogeography of its main branches, J1-M267 and J2-M172. Methods A total of 110 males of Portuguese descent were analyzed for 17 Y-chromosome bi-allelic markers and seven Y-chromosome short tandem repeats (Y-STR) loci. Results Among J1-M267 individuals (n = 36), five different sub-haplogroups were identified, with the most common being J1a2b2-L147.1 (∼72%), which encompassed the majority of representatives of the J1a2b-P58 subclade. One sample belonged to the rare J1a1-M365.1 lineage and presented a core Y-STR haplotype consistent with the Iberian settlement during the fifth century by the Alans, a people of Iranian heritage. The analysis of J2-M172 Portuguese males (n = 74) enabled the detection of the two main subclades at very dissimilar frequencies, J2a-M410 (∼80%) and J2b-M12 (∼20%), among which the most common branches were J2a1(xJ2a1b,h)-L26 (22.9%), J2a1b(xJ2a1b1)-M67 (20.3%), J2a1h-L24 (27%), and J2b2-M241 (20.3%). Conclusions While previous inferences based on modern haplogroup J Y-chromosomes implicated a main Neolithic dissemination, here we propose a later arrival of J lineages into Iberia using a combination of novel Portuguese Y-chromosomal data and recent evidence from ancient DNA. Our analysis suggests that a substantial tranche of J1-M267 lineages was likely carried into the Iberian Peninsula as a consequence of the trans-Mediterranean contacts during the first millennium BC, while most of the J2-M172 lineages may be associated with post-Neolithic population movements within Europe. |
| Databáze: | OpenAIRE |
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