From Technology Competition to Technology Complementarity

For years, the conversation around next-generation sequencing felt like a binary choice. Short-read sequencing was the undisputed foundation of genomics, while emerging long-read technologies were often viewed as experimental or niche.

Discussions throughout PacBio PRISM 2026 reflected a broader shift already occurring across the international genomics community: researchers are increasingly moving beyond viewing sequencing technologies as direct replacements for one another. It’s about choosing the right tool for the specific biological question you need to answer.

For Western Australian researchers, this evolution couldn't be more timely. Whether you are working in translational human health or protecting our state's unique ecosystems, the strategic integration of long-read data is enabling researchers to investigate biological questions that are difficult, or in some cases- not easily possible, to resolve using short-read sequencing alone.

Why Long-Read Sequencing Has Become a Practical Research Tool

Two major long-read technologies continue to drive rapid innovation: PacBio HiFi sequencing and Oxford Nanopore (ONT). Rather than competing head-to-head, they have settled into highly complementary roles. PacBio prioritizes highly accurate long reads (HiFi), making it well-suited to applications requiring reference-quality assemblies and precise structural variant detection. Meanwhile, Oxford Nanopore offers considerable flexibility and real-time sequencing across highly scalable throughput levels.

When combined with the cost-effective, high-throughput depth of short-read platforms, researchers can now design hybrid projects that optimize both structural accuracy and budget. Increasingly, we are seeing researchers combine long-read and short-read sequencing within the same project, using each technology where it provides the greatest value rather than relying on a single sequencing approach.

Where Long-Read Sequencing Is Making the Greatest Impact in Western Australia

The priorities outlined in the WA Genomics Strategy 2022–2032 highlight several key areas where long-read capabilities are becoming increasingly valuable.

1. Rare Disease & Precision Medicine

Conventional short-read approaches frequently miss large structural variants, dark regions of the genome, and complex repeat expansions. Long-read sequencing is helping identify disease-causing structural variants in previously undiagnosed cases, directly impacting underserved patient cohorts across WA health networks by uncovering the genetic drivers behind rare conditions.

2. The Human Microbiome & Infectious Disease

Metagenomics studies often become challenging when trying to assemble complex microbial communities from clinical or environmental samples. Long reads allow us to improve strain-level resolution and generate more complete genome assemblies.

3. Cancer Genomics

Tumour genomes are notoriously chaotic. The ability of long-read tech to characterize massive structural rearrangements, fusion events, and epigenetic profiles (like direct DNA methylation detection) simultaneously is moving translational oncology closer to more comprehensive molecular characterisation.

4. Agricultural & Environmental Genomics

Western Australia’s unique biodiversity and massive agricultural sector present distinct genomic challenges. Projects like UWA’s WA Genome Atlas and CSIRO’s biodiversity tracking rely heavily on de novo assembly- building high-quality reference genomes from scratch for native flora, fauna, and crop wild relatives. Long-read sequencing can simplify genome assembly and improve assembly continuity, particularly for complex genomes.

When Does Long-Read Sequencing Add Value?

As a local service provider, our goal at Genomics WA is to help you balance biological insight with project economics. Short-read sequencing remains the most cost-effective option for standard differential gene expression or high-volume variant screening.

However, long-read sequencing may be particularly valuable if your study involves:

·      Building a genome from scratch without a reliable, high-quality reference.

·      Hunting for structural variants, translocations, or tricky repeat expansions.

·      Phasing haplotypes to determine which parent a specific variant came from.

·      Mapping full-length transcripts and identifying complex RNA isoforms without assembly guesswork.

·      Profiling DNA methylation directly from native DNA without bisulfite conversion side-effects.

Looking Ahead: Building Smarter Sequencing Strategies

One of the most common questions we receive is not "Which sequencing platform is best?" but rather "What level of biological resolution do I need to answer my research question?" Increasingly, the answer involves understanding where short-read, long-read or hybrid sequencing can deliver the greatest value.

As Western Australia's genomics capabilities continue to expand, selecting the right sequencing strategy is becoming just as important as designing the right experiment. By working closely with researchers during project design, we aim to ensure that every sequencing approach is matched to the biological question being asked, maximising both scientific insight and project value.