- HOME
- Products & Services
- Application Selection Guide
- GRAS-Di® Genotyping
GRAS-Di® Genotyping
What is GRAS-Di®?
GRAS-Di® is an advanced genotyping technology developed by Toyota Motor Corporation.
It leverages next-generation sequencing (NGS) to create a library of tens of thousands of amplicons using two rounds of PCR with high-concentration random primers and sequence adapter regions.
This innovative method supports genotyping not only with reference genomes but also with a proprietary algorithm that allows genotyping of organisms with unknown genomes or complex polyploidy.
* GRAS-Di® is a registered trademark of Toyota Motor Corporation.
* HSS offers licensed GRAS-Di® services under agreement with Toyota Motor Corporation.
Features of GRAS-Di®
・Exceptional reproducibility of amplicon amplification
・Minimal missing data in genotyping results

Supported Species (Over 60 Species Available)
Rice | Radish | Apple | Cedar | |
Wheat | Broccoli | Peach | Cherry | |
Corn | Cauliflower | Pear | Human | |
Sugarcane | Green onion | Orange | Cow | |
Soybean | Onion | Citrus | Pig | |
Peanut | Cucumber | Persimmon | Chicken | |
Pea | Pumpkin | Grape | Horse | |
Tomato | Spinach | Fig | Hamster | |
Eggplant | Carrot | Kiwi | Guinea Pig | |
Green Pepper | Burdock | Yuzu | Rat | |
Bell Pepper | Strawberry | Sudachi | Tuna | |
Potato | Melon | Prune | Shiitake Mushroom | |
* Other species are also supported. Please contact us for details.
GRAS-Di® Package Plan
Example Pricing (48 Samples)
RAW Data Delivery 700,000 JPY (excluding tax)
Included Services:
・ Quality check (conducted on 6 randomly selected samples)
・ GRAS-Di® library preparation
・ Sequencing using Illumina 150PE (1 lane, equivalent to 360 million read pairs)
Recommended Option
Pilot test (5 samples): 150,000 JPY (excluding tax)
・Trial library preparation with a small number of samples
・Compatibility test between your samples and random primers

Sample Requirements
Genomic DNA ≥ 50 ng
(Concentration: ≥ 2 ng/µL Volume: ≥ 20 µL)