Evidence map›Paper›PMID 19243582›Full record

ArticleBMC genetics2009

Mitochondrial DNA haplogroup H structure in North Africa.

Hajer Ennafaa, Vicente M Cabrera, Khaled K Abu-Amero, Ana M González, Mohamed B Amor, Rym Bouhaha, Nduna Dzimiri, Amel B Elgaaïed, José M Larruga

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Article in BMC genetics, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

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29citing papers in PubMed
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1 · What the graph read from it

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3 · Its place in the literature

Who cites it

29 citing papers in PubMed.

  1. Article
  2. Genetic diversity of North African populations in the 17q21 genomic region.Mammalian genome : official journal of the International Mammalian Genome Society · 2024
    Article
  3. Article
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  7. Autoantibodies to Zinc Transporter 8 andJournal of diabetes research · 2022
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4 · The record

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5 · Who and what money

Authors and funding

9 authors.

Hajer EnnafaaLaboratory of Genetics, Immunology and Human Pathology at the Faculty of Sciences of Tunis, Faculty of Sciences of Tunis, University El Manar I, Tunis, Tunisia. ennafaahajer@yahoo.fr
Vicente M Cabrera
Khaled K Abu-Amero
Ana M González
Mohamed B Amor
Rym Bouhaha
Nduna Dzimiri
Amel B Elgaaïed
José M Larruga

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe Strait of Gibraltar separating the Iberian Peninsula from North Africa is thought to be a stronger barrier to gene flow for male than for female lineages. However, the recent subdivision of the haplogroup H at mitochondrial DNA (mtDNA) level has revealed greater genetic differentiation among geographic regions than previously detected. The dissection of the mtDNA haplogroup H in North Africa, and its comparison with the Iberian Peninsula and Near-East profiles would help clarify the relative affinities among these regions.

resultsLike the Iberian Peninsula, the dominant mtDNA haplogroup H subgroups in North Africa are H1 (42%) and H3 (13%). The similarity between these regions is stronger in the North-West edge affecting mainly Moroccan Arabs, West Saharans and Mauritanians, and decreases eastwards probably due to gene flow from Near East as attested for the higher frequencies of H4, H5, H7, H8 and H11 subgroups. Moroccan Berbers show stronger affinities with Tunisian and Tunisian Berbers than with Moroccan Arabs. Coalescence ages for H1 (11 +/- 2 ky) and H3 (11 +/- 4 ky) in North Africa point to the possibility of a late Palaeolithic settlement for these lineages similar to those found for other mtDNA haplogroups. Total and partial mtDNA genomic sequencing unveiled stronger mtDNA differentiation among regions than previously found using HVSI mtDNA based analysis.

conclusionThe subdivision of the mtDNA haplogroup H in North Africa has confirmed that the genetic differentiation found among Western and Eastern populations is mainly due to geographical rather than cultural barriers. It also shows that the historical Arabian role on the region had more a cultural than a demic effect. Whole mtDNA sequencing of identical H haplotypes based on HVSI and RFLP information has unveiled additional mtDNA differences between North African and Iberian Peninsula lineages, pointing to an older mtDNA genetic flow between regions than previously thought. Based on this new information, it seems that the Strait of Gibraltar barrier affected both male and female gene flow in a similar fashion.

Indexed as

Genetics, PopulationHaplotypesAfrica, NorthernDNA, MitochondrialEmigration and ImmigrationEthnicityEvolution, MolecularFemaleGene FlowGeographyHumansMaleMitochondriaMolecular Sequence DataPhylogenyPolymorphism, Restriction Fragment LengthDNA, Mitochondrial

Identifiers

PMID19243582
PMCPMC2657161

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.