Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
High rates of three common GJB2 mutations c.516g>c, c.-23+1g>a, c.235delc in deaf patients from southern siberia are due to the founder effect. / Zytsar, Marina V.; Bady-Khoo, Marita S.; Danilchenko, Valeriia Yu и др.
в: Genes, Том 11, № 7, 833, 01.07.2020, стр. 1-17.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
}
TY - JOUR
T1 - High rates of three common GJB2 mutations c.516g>c, c.-23+1g>a, c.235delc in deaf patients from southern siberia are due to the founder effect
AU - Zytsar, Marina V.
AU - Bady-Khoo, Marita S.
AU - Danilchenko, Valeriia Yu
AU - Maslova, Ekaterina A.
AU - Barashkov, Nikolay A.
AU - Morozov, Igor V.
AU - Bondar, Alexander A.
AU - Posukh, Olga L.
N1 - Funding Information: This work was supported by the Budget Projects of Institute of Cytology and Genetics SB RAS:#0324-2019-0041 (to O.L.P.), #0259-2019-0009 (to M.V.Z. and V.Y.D.); by the Project of the Ministry of Science and Higher Education of the Russian Federation (basic part of funding to M.K. Ammosov North-Eastern Federal University #FSRG-2020-0016) (to N.A.B.); by the RFBR grants:#17-29-06016_ofi_m (to O.L.P., M.V.Z., M.S.B.-K., V.Y.D., E.A.M., N.A.B., A.A.B., I.V.M), #18-34-00166_mol-a (to M.V.Z., V.Y.D., E.A.M.), and #18-05-600035_Arctika, #18-015-00212_A, #20-015-00328_A (to N.A.B.). The authors are sincerely grateful to all participants of the study. We also wish to acknowledge Vladimir Babenko for his help in the data analysis. Publisher Copyright: © 2020 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2020/7/1
Y1 - 2020/7/1
N2 - The mutations in the GJB2 gene (13q12.11, MIM 121011) encoding transmembrane protein connexin 26 (Cx26) account for a significant portion of hereditary hearing loss worldwide. Earlier we found a high prevalence of recessive GJB2 mutations c.516G>C, c.-23+1G>A, c.235delC in indigenous Turkic-speaking Siberian peoples (Tuvinians and Altaians) from the Tyva Republic and Altai Republic (Southern Siberia, Russia) and proposed the founder effect as a cause for their high rates in these populations. To reconstruct the haplotypes associated with each of these mutations, the genotyping of polymorphic genetic markers both within and flanking the GJB2 gene was performed in 28 unrelated individuals homozygous for c.516G>C (n = 18), c.-23+1G>A (n = 6), or c.235delC (n = 4) as well as in the ethnically matched controls (62 Tuvinians and 55 Altaians) without these mutations. The common haplotypes specific for mutations c.516G>C, c.-23+1G>A, or c.235delC were revealed implying a single origin of each of these mutations. The age of mutations estimated by the DMLE+ v2.3 software and the single marker method is discussed in relation to ethnic history of Tuvinians and Altaians. The data obtained in this study support a crucial role of the founder effect in the high prevalence of GJB2 mutations c.516G>C, c.-23+1G>A, c.235delC in indigenous populations of Southern Siberia.
AB - The mutations in the GJB2 gene (13q12.11, MIM 121011) encoding transmembrane protein connexin 26 (Cx26) account for a significant portion of hereditary hearing loss worldwide. Earlier we found a high prevalence of recessive GJB2 mutations c.516G>C, c.-23+1G>A, c.235delC in indigenous Turkic-speaking Siberian peoples (Tuvinians and Altaians) from the Tyva Republic and Altai Republic (Southern Siberia, Russia) and proposed the founder effect as a cause for their high rates in these populations. To reconstruct the haplotypes associated with each of these mutations, the genotyping of polymorphic genetic markers both within and flanking the GJB2 gene was performed in 28 unrelated individuals homozygous for c.516G>C (n = 18), c.-23+1G>A (n = 6), or c.235delC (n = 4) as well as in the ethnically matched controls (62 Tuvinians and 55 Altaians) without these mutations. The common haplotypes specific for mutations c.516G>C, c.-23+1G>A, or c.235delC were revealed implying a single origin of each of these mutations. The age of mutations estimated by the DMLE+ v2.3 software and the single marker method is discussed in relation to ethnic history of Tuvinians and Altaians. The data obtained in this study support a crucial role of the founder effect in the high prevalence of GJB2 mutations c.516G>C, c.-23+1G>A, c.235delC in indigenous populations of Southern Siberia.
KW - Altaians
KW - Founder effect
KW - GJB2
KW - Hearing loss
KW - Mutation age
KW - Southern Siberia
KW - STR and SNP haplotypes
KW - Tuvinians
UR - http://www.scopus.com/inward/record.url?scp=85088266686&partnerID=8YFLogxK
U2 - 10.3390/genes11070833
DO - 10.3390/genes11070833
M3 - Article
C2 - 32708339
AN - SCOPUS:85088266686
VL - 11
SP - 1
EP - 17
JO - Genes
JF - Genes
SN - 2073-4425
IS - 7
M1 - 833
ER -
ID: 24784058