Abstract
The complementary DNA (cDNA) encoding the preprotein growth hormone (pre-GH) from two Australian marine fish species, namely Acanthopagrus butcheri and Lates calcarifer, have been isolated, cloned and sequenced. The sequences were amplified from reverse transcribed total RNA of whole brains using Polymerase Chain Reaction (PCR) and oligonucleotide primers corresponding to the 5' and 3' regions of Pagrus major. Use of PCR offers a rapid method of isolating fish GH cDNA sequences for commercial and taxonomic applications. Sequence comparison indicates a high degree of conservation for GH cDNAs within the family Sparidae.
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