1. A cross-sectional overview of SARS-CoV-2 genome variations in Turkey
- Author
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Mücahit Kaya, Yakut Akyön, Koray Ergünay, Muhittin Serdar, Engin Yilmaz, and Acibadem University Dspace
- Subjects
Gynecology ,2019-20 coronavirus outbreak ,medicine.medical_specialty ,Turkey ,Coronavirus disease 2019 (COVID-19) ,SARS-CoV-2 ,Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) ,Biochemistry (medical) ,Clinical Biochemistry ,COVID-19 ,Biology ,Clinical disease ,Biochemistry ,Genome ,variant ,medicine ,Local disease ,mutation ,genome ,Molecular Biology ,GenoMik - Abstract
We assessed SARS-CoV-2 genome diversity and probable impact on epidemiology, immune response and clinical disease in Turkey.Complete genomes and partial Spike (S) sequences were accessed from the Global Initiative on Sharing Avian Influenza Data (GISAID) database. The genomes were analysed for variations and recombinations using appropriate softwares.Four hundred ten complete genomes and 206 S region sequences were included. Overall, 1,200 distinct nucleotide variations were noted. Mean variation count was 14.2 per genome and increased significantly during the course of the pandemic. The most frequent variations were identified as A23403G (D614G;92.9,%), C14408T (P323L, 92.2%), C3037T (89.8%), C241T (83.4%) and GGG28881AAC (RG203KR, 62.6%). The A23403G mutation was the most frequent variation in the S region sequences (99%). Most genomes (98.3%) belonged in the SARS-CoV-2 haplogroup A. No evidence for recombination was identified in genomes representing sub-haplogroup branches. The variants B.1.1.7, B.1.351 and P.1 were detected, with a statistically-significant time-associated increase in B.1.1.7 prevalence.We described prominent SARS-CoV-2 variations as well as comparisons with global virus diversity. Continuing a molecular surveillance in agreement with local disease epidemiology appears to be crucial, as vaccination and mitigation efforts are ongoing. (English) [ABSTRACT FROM AUTHOR] Turkiye kaynakli SARS-CoV-2 genomik dizi cesitliliginin ve epidemiyoloji, bagisik yanit ve hastalik seyri uzerine muhtemel etkili varyasyonlarin incelenmesi.“Global Initiative on Sharing Avian Influenza Data” (GISAID) veri tabaninda yer alan tum genom ve “Spike” (S) bolgesine ait verilere ulasilarak uygun yazilimlar yardimiyla varyasyon ve muhtemel rekombinasyonlar arastirildi.Toplam 410 tam genom ve 206 S bolgesi dizisi incelendi, 1200 farkli nukleotid duzeyinde varyasyon saptandi. Genom basina toplam varyasyon ortalamasi 14.2 olarak hesaplandi ve salginin ilerleyisi suresince istatistiksel olarak anlamli artis izlendi. En sik saptanan varyasyonlar A23403G (D614G;92.9,%), C14408T (P323L, 92.2%), C3037T (89.8%), C241T (83.4%) ve GGG28881AAC (RG203KR, 62.6%) olarak siralandi. S bolgesi dizilerinde de A23403G, en yaygin varyasyon (%99) seklinde izlendi. Incelenen genomlarin siklikla (%98.3) SARS-CoV-2 A haplogrubuna ait oldugu goruldu. Alt haplogruplari temsil eden genomlarda yapilan incelemelerde rekombinasyon bulgusu saptanmadi. Calisma grubunda B.1.1.7, B.1.351 ve P.1 varyantlari tespit edildi. B.1.1.7 prevalansinda izlenen zamanla iliskili artis, istatistiksel olarak anlamli bulundu.Calismada ulkemiz kaynakli SARS-CoV-2 genomlarinda belli basli varyasyonlar belirlenmis ve kuresel virus cesitliligi isiginda degerlendirilmistir. Kontrol ve asilama calismalari ile eszamanli olarak onemli varyantlarin tanimlanabilmesi icin, bolgesel epidemiyoloji ile uyumlu molekuler surveyans calismalari surdurulmelidir. (Turkish) [ABSTRACT FROM AUTHOR] Copyright of Turkish Journal of Biochemistry / Turk Biyokimya Dergisi is the property of De Gruyter and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2021
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