The Eastern side of the Westernmost Europeans: Insights from subclades within Y-chromosome haplogroup J-M304

• Type: Article in International Scientific Journal
• Date: 2018

Authors

Manco, L (Author) Other; Albuquerque, J (Author) Other; Sousa, MF (Author) Other; Martiniano, R (Author) Other; de Oliveira, RC (Author) Other; Marques, S (Author) Other; Gomes, V (Author) Other; Amorim, A (Author) FCUP; Alvarez, L (Author) Other; Prata, MJ (Author) FCUP

Journal

Title: American Journal of Human Biology

Vol. 30

ISSN: 1042-0533

Publisher: Wiley-Blackwell

Indexing

ISI Web of Knowledge - 1 Citation

Scopus - 1 Citation

Other information

Authenticus ID: P-00N-R0F

DOI: 10.1002/ajhb.23082

Abstract (EN): ObjectivesWe 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. MethodsA 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. ResultsAmong J1-M267 individuals (n=36), five different sub-haplogroups were identified, with the most common being J1a2b2-L147.1 (approximate to 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 (approximate to 80%) and J2b-M12 (approximate to 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%). ConclusionsWhile 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8