MtDNA profile of West Africa Guineans: towards a better understanding of the Senegambia region.
Identifieur interne : 000023 ( PubMed/Checkpoint ); précédent : 000022; suivant : 000024MtDNA profile of West Africa Guineans: towards a better understanding of the Senegambia region.
Auteurs : Alexandra Rosa [Estonie] ; Ant Nio Brehm ; Toomas Kivisild ; Ene Metspalu ; Richard VillemsSource :
- Annals of human genetics [ 0003-4800 ] ; 2004.
Descripteurs français
- KwdFr :
- ADN mitochondrial (génétique), Analyse de séquence d'ADN, Guinée-Bissau (ethnologie), Génétique des populations, Géographie, Haplotypes (génétique), Humains, Marqueurs génétiques, Phylogénie, Polymorphisme de restriction, Population d'origine africaine (génétique), Variation génétique, Évolution moléculaire.
- MESH :
- Wicri :
- geographic : Guinée-Bissau.
English descriptors
- KwdEn :
- African Continental Ancestry Group (genetics), DNA, Mitochondrial (genetics), Evolution, Molecular, Genetic Markers, Genetic Variation, Genetics, Population, Geography, Guinea-Bissau (ethnology), Haplotypes (genetics), Humans, Phylogeny, Polymorphism, Restriction Fragment Length, Sequence Analysis, DNA.
- MESH :
- chemical , genetics : DNA, Mitochondrial.
- geographic , ethnology : Guinea-Bissau.
- genetics : African Continental Ancestry Group, Haplotypes.
- Evolution, Molecular, Genetic Markers, Genetic Variation, Genetics, Population, Geography, Humans, Phylogeny, Polymorphism, Restriction Fragment Length, Sequence Analysis, DNA.
Abstract
The matrilineal genetic composition of 372 samples from the Republic of Guiné-Bissau (West African coast) was studied using RFLPs and partial sequencing of the mtDNA control and coding region. The majority of the mtDNA lineages of Guineans (94%) belong to West African specific sub-clusters of L0-L3 haplogroups. A new L3 sub-cluster (L3h) that is found in both eastern and western Africa is present at moderately low frequencies in Guinean populations. A non-random distribution of haplogroups U5 in the Fula group, the U6 among the "Brame" linguistic family and M1 in the Balanta-Djola group, suggests a correlation between the genetic and linguistic affiliation of Guinean populations. The presence of M1 in Balanta populations supports the earlier suggestion of their Sudanese origin. Haplogroups U5 and U6, on the other hand, were found to be restricted to populations that are thought to represent the descendants of a southern expansion of Berbers. Particular haplotypes, found almost exclusively in East-African populations, were found in some ethnic groups with an oral tradition claiming Sudanese origin.
DOI: 10.1046/j.1529-8817.2004.00100.x
PubMed: 15225159
Affiliations:
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xml:lang="fr"><term>Guinée-Bissau</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The matrilineal genetic composition of 372 samples from the Republic of Guiné-Bissau (West African coast) was studied using RFLPs and partial sequencing of the mtDNA control and coding region. The majority of the mtDNA lineages of Guineans (94%) belong to West African specific sub-clusters of L0-L3 haplogroups. A new L3 sub-cluster (L3h) that is found in both eastern and western Africa is present at moderately low frequencies in Guinean populations. A non-random distribution of haplogroups U5 in the Fula group, the U6 among the "Brame" linguistic family and M1 in the Balanta-Djola group, suggests a correlation between the genetic and linguistic affiliation of Guinean populations. The presence of M1 in Balanta populations supports the earlier suggestion of their Sudanese origin. Haplogroups U5 and U6, on the other hand, were found to be restricted to populations that are thought to represent the descendants of a southern expansion of Berbers. Particular haplotypes, found almost exclusively in East-African populations, were found in some ethnic groups with an oral tradition claiming Sudanese origin.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">15225159</PMID><DateCreated><Year>2004</Year><Month>06</Month><Day>30</Day></DateCreated><DateCompleted><Year>2005</Year><Month>01</Month><Day>06</Day></DateCompleted><DateRevised><Year>2008</Year><Month>11</Month><Day>21</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0003-4800</ISSN><JournalIssue CitedMedium="Print"><Volume>68</Volume><Issue>Pt 4</Issue><PubDate><Year>2004</Year><Month>Jul</Month></PubDate></JournalIssue><Title>Annals of human genetics</Title><ISOAbbreviation>Ann. Hum. Genet.</ISOAbbreviation></Journal><ArticleTitle>MtDNA profile of West Africa Guineans: towards a better understanding of the Senegambia region.</ArticleTitle><Pagination><MedlinePgn>340-52</MedlinePgn></Pagination><Abstract><AbstractText>The matrilineal genetic composition of 372 samples from the Republic of Guiné-Bissau (West African coast) was studied using RFLPs and partial sequencing of the mtDNA control and coding region. The majority of the mtDNA lineages of Guineans (94%) belong to West African specific sub-clusters of L0-L3 haplogroups. A new L3 sub-cluster (L3h) that is found in both eastern and western Africa is present at moderately low frequencies in Guinean populations. A non-random distribution of haplogroups U5 in the Fula group, the U6 among the "Brame" linguistic family and M1 in the Balanta-Djola group, suggests a correlation between the genetic and linguistic affiliation of Guinean populations. The presence of M1 in Balanta populations supports the earlier suggestion of their Sudanese origin. Haplogroups U5 and U6, on the other hand, were found to be restricted to populations that are thought to represent the descendants of a southern expansion of Berbers. Particular haplotypes, found almost exclusively in East-African populations, were found in some ethnic groups with an oral tradition claiming Sudanese origin.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Rosa</LastName><ForeName>Alexandra</ForeName><Initials>A</Initials><AffiliationInfo><Affiliation>Department of Evolutionary Biology, Estonian Biocenter, Tartu University, Riia 23, 51010 Tartu, Estonia.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Brehm</LastName><ForeName>António</ForeName><Initials>A</Initials></Author><Author ValidYN="Y"><LastName>Kivisild</LastName><ForeName>Toomas</ForeName><Initials>T</Initials></Author><Author ValidYN="Y"><LastName>Metspalu</LastName><ForeName>Ene</ForeName><Initials>E</Initials></Author><Author ValidYN="Y"><LastName>Villems</LastName><ForeName>Richard</ForeName><Initials>R</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>Ann Hum Genet</MedlineTA><NlmUniqueID>0416661</NlmUniqueID><ISSNLinking>0003-4800</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D004272">DNA, Mitochondrial</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D005819">Genetic Markers</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><CommentsCorrectionsList><CommentsCorrections RefType="ErratumIn"><RefSource>Ann Hum Genet. 2005 Jul;69(Pt 4):499</RefSource></CommentsCorrections><CommentsCorrections RefType="ErratumIn"><RefSource>Ann Hum Genet. 2004 Nov;68(Pt 6):658</RefSource></CommentsCorrections></CommentsCorrectionsList><MeshHeadingList><MeshHeading><DescriptorName UI="D044383" 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name="Estonie"><noRegion><name sortKey="Rosa, Alexandra" sort="Rosa, Alexandra" uniqKey="Rosa A" first="Alexandra" last="Rosa">Alexandra Rosa</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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