کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8737541 | 1591363 | 2018 | 54 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Genetic diversity of the HLA system in human populations from the Sierra (Andean), Oriente (Amazonian) and Costa (Coastal) regions of Ecuador
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
ایمنی شناسی و میکروب شناسی
ایمونولوژی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We studied HLA class I (HLA-A, -B) and class II (HLA-DRB1, -DQB1) alleles by PCR-SSP based typing in a total of 1101 Ecuadorian individuals from three regions of the country, the Coastal region, the Andean region, and the Amazonian region, to obtain information regarding allelic and haplotypic frequencies and their linkage disequilibrium. We find that the most frequent HLA haplotypes with significant linkage disequilibrium in those populations are HLA-A*24â¼B*35â¼DRB1*04â¼DQB1*03:02, A*02â¼B*35â¼DRB1*04â¼DQB1*03:02, A*24â¼B*35â¼DRB1*14â¼DQB1*03:01, A*02â¼B*35â¼DRB1*14â¼DQB1*03:01 and A*02â¼B*40:02â¼DRB1*04â¼DQB1*03:02. The only non-Native American haplotype with frequency >1% shared by all groups was A*29â¼B*44â¼DRB1*07â¼DQB1*02. Admixture estimates obtained by a maximum likelihood method using HLA-B as genetic estimator revealed that the main genetic components for this sample of mixed-ancestry Ecuadorians are Native American (ranging from 52.86% to 63.83%) and European (from 28.95% to 46.54%), while an African genetic component was only apparent in the Coastal region (18.19%). Our findings provide a starting point for the study of population immunogenetics of Ecuadorian populations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Human Immunology - Volume 79, Issue 9, September 2018, Pages 639-650
Journal: Human Immunology - Volume 79, Issue 9, September 2018, Pages 639-650
نویسندگان
Juan M. Galarza, Rodrigo Barquera, Ana M. Tito Álvarez, Diana I. Hernández Zaragoza, Gabriela Peralta Sevilla, Andrea Tamayo, Mariel Pérez, David Dávila, Lotty Birnberg, VÃctor Acuña Alonzo, Johannes Krause, Marcelo Grijalva,