Comparative biochemistry and physiology. Part D, Genomics & proteomics

Protein study of giant tiger shrimp ovaries focusing on thymosin-beta and RAC-GTPase activating protein 1

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Updated

Abstract

A total of 1638 proteins were matched in the ovaries of giant tiger shrimp.

  • Of the identified proteins, 1253 (76.50%) significantly matched known proteins.
  • Several reproduction-related proteins, including Cdc2 and Cyclin B, were found.
  • The full-length cDNA of thymosin-β and Rac-GTPase activating protein 1 was characterized, revealing distinct lengths and deduced amino acids.
  • Thymosin-β was expressed in all tissues, while Rac-GTPase activating protein 1 had higher expression in gonads compared to non-reproductive tissues.
  • Expression levels of thymosin-β and Rac-GTPase activating protein 1 were significantly greater in ovaries of wild adult broodstock than in juveniles.
  • Eyestalk ablation led to a significant reduction in thymosin-β expression during certain ovarian stages, but did not significantly affect Rac-GTPase activating protein 1 levels.

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