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Genomic Insights of Bruneian Malays

Mirza Azmi, Lie Chen, Adi Idris, View ORCID ProfileZen H. Lu
doi: https://doi.org/10.1101/2022.06.01.492266
Mirza Azmi
1PAPRSB Institute of Health Sciences, Universiti Brunei Darussalam, Jalan Tungku Link, BE1410 Brunei Darussalam
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Lie Chen
1PAPRSB Institute of Health Sciences, Universiti Brunei Darussalam, Jalan Tungku Link, BE1410 Brunei Darussalam
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Adi Idris
2Griffith Centre for Cell and Gene Therapy, Griffith University, Gold Coast Campus, QLD 4222, Australia
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Zen H. Lu
1PAPRSB Institute of Health Sciences, Universiti Brunei Darussalam, Jalan Tungku Link, BE1410 Brunei Darussalam
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  • ORCID record for Zen H. Lu
  • For correspondence: zenhuat.lu@ubd.edu.bn
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Abstract

The Malays and their many sub-ethnic groups collectively make up one of the largest population groups in Southeast Asia. However, their genomes, especially those from Brunei, remain very much underrepresented and understudied. We analysed here the publicly available WGS and genotyping data of two and 39 Bruneian Malay individuals, respectively. NGS reads from the two individuals were first mapped against the GRCh38 human reference genome and their variants called. Of the total ∼5.28 million short nucleotide variants and indels identified, ∼217K of them were found to be novel; with some predicted to be deleterious and may be associated with risk factors of common non-communicable diseases in Brunei. Unmapped reads were next mapped against the recently reported novel Chinese and Japanese genomic contigs and de novo assembled. ∼227 Kbp genomic sequences missing in GRCh38 and a partial open reading frame encoding a potential novel small zinc finger protein were successfully discovered. Interestingly, although the Malays in Brunei and Singapore share as many as ∼4.38 million common variants, principal component and admixture analysis comparing the genetic structure of the local Malays against other Asian population groups suggested that the Malays in Brunei are genetically closer to some Filipino ethnic groups than the Malays in Malaysia and Singapore. Taken together, our works have provided a first comprehensive insight into the genomes of the Bruneian Malay population.

Competing Interest Statement

The authors have declared no competing interest.

Footnotes

  • Conflicts of Interest: All authors hereby declare that they have no conflicts of interest with the works to be published in this manuscript.

Copyright 
The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY-NC 4.0 International license.
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Posted June 03, 2022.
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Genomic Insights of Bruneian Malays
Mirza Azmi, Lie Chen, Adi Idris, Zen H. Lu
bioRxiv 2022.06.01.492266; doi: https://doi.org/10.1101/2022.06.01.492266
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Genomic Insights of Bruneian Malays
Mirza Azmi, Lie Chen, Adi Idris, Zen H. Lu
bioRxiv 2022.06.01.492266; doi: https://doi.org/10.1101/2022.06.01.492266

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