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- W2994132876 endingPage "20192187" @default.
- W2994132876 startingPage "20192187" @default.
- W2994132876 abstract "The idea that there is an impenetrable barrier that separates the germline and soma has shaped much thinking in evolutionary biology and in many other disciplines. However, recent research has revealed that the so-called ‘Weismann Barrier’ is leaky, and that information is transferred from soma to germline. Moreover, the germline itself is now known to age, and to be influenced by an age-related deterioration of the soma that houses and protects it. This could reduce the likelihood of successful reproduction by old individuals, but also lead to long-term deleterious consequences for any offspring that they do produce (including a shortened lifespan). Here, we review the evidence from a diverse and multidisciplinary literature for senescence in the germline and its consequences; we also examine the underlying mechanisms responsible, emphasizing changes in mutation rate, telomere loss, and impaired mitochondrial function in gametes. We consider the effect on life-history evolution, particularly reproductive scheduling and mate choice. Throughout, we draw attention to unresolved issues, new questions to consider, and areas where more research is needed. We also highlight the need for a more comparative approach that would reveal the diversity of processes that organisms have evolved to slow or halt age-related germline deterioration." @default.
- W2994132876 created "2019-12-13" @default.
- W2994132876 creator A5007203660 @default.
- W2994132876 creator A5065413858 @default.
- W2994132876 date "2019-12-18" @default.
- W2994132876 modified "2023-10-16" @default.
- W2994132876 title "The deteriorating soma and the indispensable germline: gamete senescence and offspring fitness" @default.
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