Publications by authors named "Joanna Hui Juan Tan"

Article Synopsis
  • Structural variants (SVs) play a crucial role in genetic differences that relate to traits and diseases, but most research has focused on European populations.
  • This study compiles a catalogue of over 73,000 SVs from a diverse group of 8,392 Singaporeans, revealing that about 65% of these SVs are novel and specific to Asian ancestry groups.
  • The findings help identify clinically relevant SVs and improve genetic research by addressing biases related to ancestry, which is important for equity and diversity in the field.
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Genomic researchers increasingly utilize commercial cloud service providers (CSPs) to manage data and analytics needs. CSPs allow researchers to grow Information Technology (IT) infrastructure on demand to overcome bottlenecks when combining large datasets. However, without adequate security controls, the risk of unauthorized access may be higher for data stored on the cloud.

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Asian populations are under-represented in human genomics research. Here, we characterize clinically significant genetic variation in 9051 genomes representing East Asian, South Asian, and severely under-represented Austronesian-speaking Southeast Asian ancestries. We observe disparate genetic risk burden attributable to ancestry-specific recurrent variants and identify individuals with variants specific to ancestries discordant to their self-reported ethnicity, mostly due to cryptic admixture.

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Single cell genomics offers an unprecedented resolution to interrogate genetic heterogeneity in a patient's tumour at the intercellular level. However, the DNA yield per cell is insufficient for today's sequencing library preparation protocols. This necessitates DNA amplification which is a key source of experimental noise.

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