Ageing reduces the reproductive performance of male white shrimp Litopenaeus vannamei by altering sperm intracellular Ca2+ concentrations and interfering with sperm apoptosis
| Autor: | Shanjie Zha, Lihua Hu, Jiongming Zhang, Huang Xianke, Maocang Yan, Guangxu Liu, Wei Shi |
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| Rok vydání: | 2018 |
| Předmět: |
0301 basic medicine
biology media_common.quotation_subject Acrosome reaction Litopenaeus 04 agricultural and veterinary sciences General Medicine biology.organism_classification Insemination Sperm Shrimp Andrology 03 medical and health sciences 030104 developmental biology Endocrinology Human fertilization Food Animals 040102 fisheries 0401 agriculture forestry and fisheries Animal Science and Zoology Reproduction Acrosome media_common |
| Zdroj: | Animal Reproduction Science. 198:74-81 |
| ISSN: | 0378-4320 |
| DOI: | 10.1016/j.anireprosci.2018.09.003 |
| Popis: | Although the effects of age on the reproductive performance of various invertebrates, including white shrimp Litopenaeus vannamei are increasingly well documented, the mechanisms manifesting these impacts remain poorly understood. To ascertain the mechanisms of age on reproductive performance, the sperm quality, intracellular contents of Ca2+, insemination and hatching rates, and status of sperm apoptosis in terms of the expression of key regulatory genes were investigated in 11 and 16 month old male L. vannamei. The aged male individuals (16 months) had lesser reproductive performance in terms of fertilization and hatching rates. In addition, fewer and less viable sperm were detected in aged shrimp, which may be due to the altered expression of apoptosis-related genes. Furthermore, the aged males had lesser intracellular contents of Ca2+ in the sperm which may decrease the capacity of these gametes to undergo a complete acrosome reaction. In general, due to the decrease in intracellular contents of Ca2+ and alterations in the process of apoptosis, aged L. vannamei have relatively lesser quality sperm and may, therefore, have lesser reproductive performance. |
| Databáze: | OpenAIRE |
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