Paternal influences over offspring sex ratio in mammals – tested hypotheses and potential mechanisms

IF 4.3 2区 生物学 Q1 ECOLOGY Mammal Review Pub Date : 2023-10-12 DOI:10.1111/mam.12330
Julia Joanna Pawluk, Magdalena Zagalska-Neubauer
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父系对哺乳动物后代性别比的影响--经过验证的假设和潜在机制
摘要有性生殖动物的性别比通常接近1:1,并可能受到双亲的影响。偏离这一比例在自然界中是存在的,并且具有适应性作用。虽然有几种进化假说可以解释这种偏见,但对性别比例兼性调节机制的了解却非常缺乏。虽然对母亲的影响研究得比较充分,但父亲对主要性别比例的影响仍然难以捉摸。本文旨在收集和总结性别分配中男性控制的知识。特别是,我们专注于确定可能的机制,通过这些机制,可以在受精前、受精中和受精后的水平上实现调整。进行了系统的文献综述。我们选择了59篇文章,这些文章提供了对观察到的雄性哺乳动物可能负责的后代性别比例偏差的潜在近端解释。我们概述了哺乳动物雄性生殖细胞和受精卵阶段中男性驱动的性别分配的潜在生理和遗传机制。然而,大多数关于雄性如何影响后代性别比例的假设主要涉及携带Y染色体和X染色体的精子数量不等,以及它们在形态和生理上的差异。由于男性拥有广泛的机制来有效地改变其后代的性别比例,他们可以在这一现象中发挥重要作用,应该进行研究,以减少我们对其在性别分配中的作用的理解与女性的作用相比的差距。需要对不同的哺乳动物模型进行更多的实证研究,以充分表征调整的趋势。后代性别比的预测不仅对畜牧业,而且对濒危物种的保护都具有重要意义。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Mammal Review
Mammal Review 生物-动物学
CiteScore
12.20
自引率
4.10%
发文量
29
审稿时长
>12 weeks
期刊介绍: Mammal Review is the official scientific periodical of the Mammal Society, and covers all aspects of mammalian biology and ecology, including behavioural ecology, biogeography, conservation, ecology, ethology, evolution, genetics, human ecology, management, morphology, and taxonomy. We publish Reviews drawing together information from various sources in the public domain for a new synthesis or analysis of mammalian biology; Predictive Reviews using quantitative models to provide insights into mammalian biology; Perspectives presenting original views on any aspect of mammalian biology; Comments in response to papers published in Mammal Review; and Short Communications describing new findings or methods in mammalian biology.
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