Exploring impacts of marine heatwaves: paternal heat exposure diminishes fertilization success in the purple sea urchin (Strongylocentrotus purpuratus)
Exploring impacts of marine heatwaves: paternal heat exposure diminishes fertilization success in the purple sea urchin (Strongylocentrotus purpuratus)
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探索海洋热浪的影响：父本受热会降低紫海胆 (Strongylocentrotus purpuratus) 的受精成功率
DOI：
10.1007/s00227-021-03915-x
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发表时间：
2021
期刊：
影响因子：
2.4
通讯作者：
Hofmann, Gretchen E.
中科院分区：
文献类型：
--
作者：
Leach, Terence S.;BuyanUrt, Buyanzaya;Hofmann, Gretchen E.
海洋热浪（MHWs）预计在未来几十年的强度和频率增加，这是必要的，以评估海洋生物对这些极端温度事件的适应能力。鉴于MHW在一个地区持续数天至数周的性质，这些事件可能对生殖和发育等物候事件产生全面影响。在这里，成年热历史和跨代可塑性的作用可能是MHW影响群落结构的重要途径。在这项研究中，我们试图探讨父亲的热历史在紫海胆，球海胆，繁殖的一个重要方面，受精的影响。使用代表2014-2020年发生的MHW事件和我们加州大型海洋生态系统区域的非MHW温度的生态相关温度，我们对雄性进行了调节。purpurpuratusfor 28天，无论是高，MHW或低，非MHW温度。在成虫温度适应后，通过在不同温度和精子浓度下进行受精成功试验来测试个体雄性的精子性能。虽然精子在受精过程中对高温表现出鲁棒性，但与适应非MHW温度的精子相比，高温驯化雄性产生的精子的性能总体上有所下降。这些结果表明，MHW事件将产生负面影响，在原位受精为S。purpuratuspopulations.此外，这些结果强调了在气候变化情景下预测生殖时考虑男性和女性环境历史的重要性。
Marine heatwaves (MHWs) are projected to increase in intensity and frequency over the coming decades, and it is imperative to assess the adaptive capacity of marine organisms to these extreme temperature events. Given the nature of MHWs to last days to weeks in a region, these events may have overarching impacts on phenological events like reproduction and development. Here, the role of adult thermal history and transgenerational plasticity may be an important pathway by which MHWs are transduced to impact community structure. In this study, we sought to explore the effects of paternal thermal history in the purple urchin,Strongylocentrotus purpuratus, on a crucial aspect of reproduction, fertilization. Using ecologically relevant temperatures representative of both MHW events that occurred in 2014–2020 and non-MHW temperatures in our region of the California Large Marine Ecosystem, we conditioned maleS. purpuratusfor 28 days to either a high, MHW or a low, non-MHW temperature. Following the temperature acclimation of adults, sperm performance was tested for individual males by conducting fertilization success trials at varying temperatures and sperm concentrations. While sperm appeared robust to elevated temperature during fertilization, sperm produced by high-temperature-acclimated males had overall diminished performance as compared to those acclimated to non-MHW temperatures. These results suggest MHW events will have a negative impact on fertilization in situ forS. purpuratuspopulations. Furthermore, these results highlight the importance of considering both male and female environmental history in projections of reproduction under climate change scenarios.
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影响因子：
4.1
作者：
Foo SA;Dworjanyn SA;Khatkar MS;Poore AG;Byrne M
通讯作者：
Byrne M
DOI：
10.1016/b978-0-12-819570-3.00016-0
发表时间：
2020-01-01
期刊：
SEA URCHINS: BIOLOGY AND ECOLOGY, 4TH EDITION
影响因子：
--
作者：
Byrne, Maria;Carlos Hernandez, Jose
通讯作者：
Carlos Hernandez, Jose
影响因子：
5.2
作者：
Jensen, Natasha;Allen, Richard M.;Marshall, Dustin J.
通讯作者：
Marshall, Dustin J.
精子变异性的维持：广播产卵无脊椎动物精子形态的环境相关选择
DOI：
--
发表时间：
2012
期刊：
Evolution; international journal of organic evolution
影响因子：
--
作者：
Darren W. Johnson;Keyne Monro;D. Marshall
通讯作者：
D. Marshall
温度对一些热带棘皮动物受精和早期卵裂的影响，重点是 Echinometra mathaei
DOI：
--
发表时间：
1973
期刊：
影响因子：
--
作者：
J. Rupp
通讯作者：
J. Rupp