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精子特异性和亚马逊 (Poecilia formosa) 在妇产生成中的潜在父性影响
Clarissa Cerepaka1,2,3, Ingo Schlupp2,4
1Division of Comparative Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States of America.
PeerJ
|November 9, 2023
概括
亚马逊 (Poecilia formosa) 需要精子通过生殖来无性繁殖. 这项研究确定了兼容的精子捐赠者,并发现,在这种独特物种中,交配的雄性改善了生殖成功.
科学领域:
- 生殖生物学 生殖生物学
- 进化生物学 进化生物学
- 遗传学 是一个遗传学.
背景情况:
- 亚马逊 (Poecilia formosa) 通过妇产生成繁殖,这是一个无性过程,由没有男性遗传结合的精子触发.
- 研究妇产生成提供了一个独特的途径来研究非遗传父性对生殖的影响.
研究的目的:
- 确定哪些相关物种可以提供精子来诱导P. formosa.的妇产生成.
- 评估P. formosa的繁殖成功是否会受到同情性与非同情性雄性存在的影响.
主要方法:
- 在P. formosa和11个相关物种之间进行了交叉交配实验.
- 生殖成功是通过测量相对生殖产量,相对胚胎产量和相结合的相对生殖产量来量化.
主要成果:
- P. formosa与Poecilia和Limia属的雄性产生了后代或胚胎.
- 大型P. formosa雌性与同情性Poecilia mexicana雄性结合时,繁殖成功率较高,而非全方位的雌性.
- 从Gambusia,Girardinus,Heterandria,Poeciliopsis或Xiphophorus属的雄性中没有产生任何后代或胚胎.
结论:
- 这项研究确定了特定的精子捐赠者,能够触发P. formosa.中的妇产生成.
- 与Poecilia mexicana雄性的共对P. formosa的繁殖成功产生了积极的影响.
- 这些发现为使用P. formosa作为研究物种特异性精子对生殖和父亲影响影响影响的模型奠定了基础.
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