Abstract:
:Spotted seal (Phoca largha) is a critically endangered pinniped in China and South Korea. The conventional method to protect and maintain the P. largha population is to keep them captive in artificially controlled environments. However, little is known about the physiological differences between wild and captive P. largha. To generate a preliminary protein expression profile for P. largha, whole blood from wild and captive pups were subjected to a label-free comparative proteomic analysis. According to the results, 972 proteins were identified and predicted to perform functions related to various metabolic, immune, and cellular processes. Among the identified proteins, the expression level of 51 were significantly different between wild and captive P. large pups. These differentially expressed proteins were enriched in a wide range of cellular functions, including cytoskeleton, phagocytosis, proteolysis, the regulation of gene expression, and carbohydrate metabolism. The abundances of proteins involved in phagocytosis and ubiquitin-mediated proteolysis were significantly higher in the whole blood of wild P. largha pups than in captive individuals. In addition, heat shock protein 90-beta, were determined as the key protein associated with the differences in the wild and captive P. largha pups due to the most interactions of it with various differentially expressed proteins. Moreover, wild P. largha pups could be more nutritionally stressed and have more powerful immune capacities than captive pups. This study provides the first data on the protein composition of P. largha and provides useful information on the physiological characteristics for research in this species.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Tian J,Du J,Han J,Bao X,Song X,Lu Zdoi
10.1038/s41598-020-75759-2subject
Has Abstractpub_date
2020-10-30 00:00:00pages
18727issue
1issn
2045-2322pii
10.1038/s41598-020-75759-2journal_volume
10pub_type
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