Bangkok Post
DNA study finds multiple blackchin tilapia sources
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◌ Single Source
A new study by researchers from Chulalongkorn University has concluded that invasive blackchin tilapia were introduced to Thailand at multiple places and in multiple ways, and not as a result of a single introduction as believed earlier.
Key facts
- A new study by researchers from Chulalongkorn University has concluded that invasive blackchin tilapia were introduced to Thailand at multiple places and in multiple ways, and not as a result of a single introduction as believed earlier.
- The six-member research team based their conclusions on a DNA analysis of 466 fish samples from 20 locations nationwide. The results were published in Aquaculture Reports .
- The scientists, from the university’s Aquatic Resources Research Institute, said they identified 19 distinct genetic haplotypes, including 13 unique local variants.
- A haplotype is a group of genes or DNA variations on a single chromosome that are inherited together from a single parent.
- The researchers said the high genetic diversity they found contradicts the theory that the spread of blackchin tilapia originated from one small founding population.
Summary
The six-member research team based their conclusions on a DNA analysis of 466 fish samples from 20 locations nationwide. The results were published in Aquaculture Reports .
The scientists, from the university’s Aquatic Resources Research Institute, said they identified 19 distinct genetic haplotypes, including 13 unique local variants.