However, as the evolution progressed bringing cats from the jungles into our homes, some domestic kittens inherited more or less DNA from particular wild relatives. Tiny differences and minimal amounts, yet this gives us a chance to better understand our cat, and all cats, with the help of genetics The Basepaws Wild Cat Index now offers you a way to see if your furry companion has more DNA in common with different wild cats – even small amounts – in comparison to other domestic cats.
Figure 1: The Cat Family Tree (O’Brien & Johnson, 2007)
How does Basepaws calculate the Wild Cat Index?
After the Basepaws science team sequences your cat’s DNA, we compare your cat’s genome to other cats from our database, big and small. For all the thousands of locations along with your cat’s DNA that can be similar or different in wild and domestic cats, we record how many similarities your cat shares with different wild cats. According to this value, we get from the comparative analysis, we rank all Basepaws cats according to similarity to wild relatives – lions, tigers and such. The Wild Cat Index is a percentage value (for each wild cat) that tells you how your cat ranks in similarity to the wild relative against other Basepaws cats.
Note: The value from your cat’s report may change in later versions of the report as our database continues to grow and we welcome more cats to the Basepaws family. For a more detailed insight into the process of your cat’s DNA analysis, please read “Behind The Scenes at Basepaws” blog.
How do I interpret the Wild Cat Index?
Wild cats that have been compared to your cat are listed in order of best match. If the percentage is higher than 50%, then your cat shares more DNA with this wild cat in comparison to the average domestic cats. If the percentage is less than 50%, then your cat shares less DNA with this wild cat than average domestic cats.
Please remember: Your cat’s highest match is based on ranking and should not be interpreted as your cat’s most recent wild ancestor. Read this blog for more about cat ancestry.
Reasons for high percentage rankings
1. Random inheritance
High-ranking cats are more closely related to a particular wild cat than the low-ranking cats. For instance, on average, house cats and lions share ~95.6% of their DNA. On an individual basis, all house cats should have values pretty close to this value, with some variations. While some cats might inherit more DNA in common with lions, others will inherit less.
This genetic similarity is a result of a random chance of inheritance. A kitten inherits half of its DNA from each parent, but the halves it receives are random combinations of their DNA. Because of this randomness, one ancestor will pass on more or less of their DNA than other ancestors to the offspring.
Sometimes, cats of different species cross and create hybrid kittens (i.e. Savannah cats, Bengals). An exceptionally high match could indicate that one of your cat’s recent ancestors was truly a wild cat or a hybrid cat, but most likely not. After all – most of our little lions are not descendants of wildcats, and this is not an index that can determine this.
Please remember: We currently cannot distinguish if a high match resulted from the random chance of inheritance or the hybrid ancestry.
Which cats does the Basepaws Wild Cat Index include?
The Basepaws Wild Cat Index currently includes the following wild cats:
The Basepaws Wild Cat Index is a unique genetic test that compares your cat’s DNA sequence to different wild cats such as lions and tigers. This part of our report tells you which wild cats your cat is most related to in comparison to other house cats. Is your cat more related to a Jaguar or a Lion than other cats? Take the opportunity to find out and order your Basepaws CatKit today!
1. Ottoni, C et al. (2017). The palaeogenetics of cat dispersal in the ancient world. Nature Ecology & Evolution 1.
2. O’Brien S. J. & Johnson W. E. (2007). The Evolution of Cats. Scientific American. p. 68-75.