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Background Walking catfish (Clarias batrachus) is a freshwater fish capable of air-breathing and locomotion on land. It usually inhabits various low-oxygen habitats, burrows inside the mudflat, and sometimes “walks” to search for suitable environments during summer. It has evolved accessory air-breathing organs for respiring air and corresponding mechanisms to survive in such challenging environments...
In the present study, we have annotated both the immunoglobulin heavy (IgH) and light (IgL) chain genes in the stickleback (Gasterosteus aculeatus), based on the recently released genome data. The IgH gene locus is arranged in a configuration of (V n -D-J-C ζ -D 3 -J 4 -C μ -C δ ) 3 -V 6 -D-J-C ζ , which is structurally different...
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