
In a study appearing in BMC Genomics today (August 26), Bilyk and Cheng report having sequenced multiple tissue transcriptomes from both native and heat-exposed notothen fish. They then compared the transcriptome sequences with those from the tropical water-dwelling zebrafish, identifying 58 P. borchgrevinki-specific signatures that could hold the key to survival in extreme cold environments.
The researchers “hope to unravel...
In their paper, the authors note that they are now working to investigate the transcriptional changes that occur in the fish during its first four days of exposure to 4°C “in order to better understand how their response to heat has been influenced by the long evolution of Antarctic notothenioid fishes in constant freezing water temperatures.”
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