A two-second delay confers first-male fertilization precedence within in vitro sperm competition experiments in Atlantic salmon
A two-second delay confers first-male fertilization precedence within in vitro sperm competition experiments in Atlantic salmon
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在大西洋鲑鱼的体外精子竞争实验中，两秒的延迟赋予了第一只雄性受精的优先权
DOI：
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
M. Gage
中科院分区：
文献类型：
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作者：
S. Yeates;J. Searle;R. G. Ward;M. Gage
在大西洋鲑鱼（Salmo salar）的体外配对雄性精子竞争实验中，一个雌性卵子显示，精子释放延迟20秒会导致父系关系显著降低，第二个雄性只有30%的受精成功率（预期为50%）。这种雄性首次受精的优先权支持了之前的研究，即精子竞争遵循大西洋鲑鱼的种族原则，并表明在自然竞争产卵中精子释放的任何时间不对称都可能对雄性受精的成功产生重大影响。
In vitro paired-male sperm competition experiments in Atlantic salmon Salmo salar for a single female’s eggs revealed that 2 s delays in sperm release caused significant reductions in paternity, with second males achieving only 30% fertilization success (against an expected 50%). This first-male fertilization precedence supports previous work suggesting that sperm competition follows the principles of a race in Atlantic salmon, and suggests that any timing asymmetry in sperm release within natural competitive spawnings could have significant consequences for male fertilization success.