lamarckian inheritance
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2021 ◽  
Author(s):  
Yulong Li ◽  
Yujing Xu ◽  
Tongxu Liu ◽  
Hengyi Chang ◽  
Xiaojun Yang

2020 ◽  
Vol 13 (1) ◽  
Author(s):  
Ute Deichmann

Abstract Epigenetics researchers in developmental, cell, and molecular biology greatly diverge in their understanding and definitions of epigenetics. In contrast, social epigeneticists, e.g., sociologists, scholars of STS, and behavioural scientists, share a focus and definition of epigenetics that is environmentally caused and trans-generationally inherited. This article demonstrates that this emphasis on the environment and on so-called Lamarckian inheritance, in addition to other factors, reflects an interdisciplinary power struggle with genetics, in which epigenetics appears to grant the social sciences a higher epistemic status. Social scientists’ understanding of epigenetics, thus, appears in part to be socially constructed, i.e., the result of extra-scientific factors, such as social processes and the self-interest of the discipline. This article argues that social epigeneticists make far-reaching claims by selecting elements from research labelled epigenetics in biology while ignoring widely confirmed scientific facts in genetics and cell biology, such as the dependence of epigenetic marks on DNA sequence-specific events, or the lack of evidence for the lasting influence of the environment on epigenetic marks or the epigenome. Moreover, they treat as a given crucial questions that are far from resolved, such as what role, if any, DNA methylation plays in the complex biochemical system of regulating gene activity. The article also points out incorrect perceptions and media hypes among biological epigeneticists and calls attention to an apparent bias among scientific journals that prefer papers that promote transgenerational epigenetic inheritance over articles that critique it. The article concludes that while research labelled epigenetics contributes significantly to our knowledge about chromatin and the genome, it does not, as is often claimed, rehabilitate Lamarck or overthrow the fundamental biological principles of gene regulation, which are based on specific regulatory sequences of the genome.


2020 ◽  
Author(s):  
ute deichmann

Abstract Epigenetics researchers in developmental, cell, and molecular biology greatly diverge in their understanding and definitions of epigenetics. In contrast, social epigeneticists, e.g. sociologists, scholars of STS, and behavioural scientists, share a focus and definition of epigenetics that is environmentally-caused and trans-generationally inherited. This article demonstrates that this emphasis on the environment and on so-called Lamarckian inheritance, in addition to other factors, reflects an interdisciplinary power struggle with genetics, in which epigenetics appears to grant the social sciences a higher epistemic status. Social scientists' understanding of epigenetics thus appears in part to be socially constructed, i.e. the result of extra-scientific factors, such as social processes and the self-interest of the discipline. This article argues that social epigeneticists make far-reaching claims by selecting elements from research labelled epigenetics in biology while ignoring widely confirmed scientific facts in genetics and cell biology, such as the dependence of epigenetic marks on DNA sequence specific events, or the lack of evidence for the lasting influence of the environment on epigenetic marks or the epigenome. Moreover, they treat as a given crucial questions that are far from resolved, such as what role, if any, DNA methylation plays in the complex biochemical system of regulating gene activity. The article also points out incorrect perceptions and media hypes among biological epigeneticists and calls attention to an apparent bias among scientific journals that prefer papers that promote transgenerational epigenetic inheritance over articles that critique it. The article concludes that while research labelled epigenetics contributes significantly to our knowledge about chromatin and the genome, it does not, as is often claimed, rehabilitate Lamarck or overthrow the fundamental biological principles of gene regulation, which are based on specific regulatory sequences of the genome.


2020 ◽  
Author(s):  
ute deichmann

Abstract Epigenetics researchers in developmental, cell, and molecular biology greatly diverge in their understanding and definitions of epigenetics. In contrast, social epigeneticists, e.g. sociologists, scholars of STS, and behavioural scientists, share a focus on what they allege to be environmentally-caused and trans-generationally inherited epigenetics. Their emphasis on the environment and so-called Lamarckian inheritance may be the result of wishful thinking and a predilection for the environment, not the gene, as defining factor for phenotypes. However, it also reflects an interdisciplinary power struggle with genetics, in which epigenetics appears to grant the social sciences a higher epistemic status. This article argues that social epigeneticists make far-reaching claims while ignoring widely confirmed scientific evidence, such as the dependence of epigenetic marks on DNA sequence specific events, and the lacking evidence for the lasting influence of the environment on epigenetic marks. Moreover, they treat as given crucial questions that are far from resolved, such as what, if any, the role of DNA methylation is in the complex biochemical system of regulating gene activity. Such shortcomings are not confined to epigenetic studies in the social study of science and behavioural sciences. The article points out biases and media hypes in scientific studies of epigenetics and calls attention to an apparent bias among scientific journals that prefer papers that promote transgenerational epigenetic inheritance over articles that critique it. The article concludes that while research labelled epigenetics contributes significantly to our knowledge about chromatin and the genome, it does not, as is often claimed, rehabilitate Lamarck or overthrow the fundamental biological principles of gene regulation, which are based on specific regulatory sequences of the genome.


Author(s):  
Anthony Chaney

This chapter describes how Bateson’s efforts to connect with peers such as Konrad Lorenz and to make his thought assessable to a lay audience resulted in a breakthrough: the recognition of Mind as the central concept in the life sciences. This breakthrough also represents Bateson taking on his father William Bateson's scientific legacy. The chapter tells of the collapse of William Bateson's health and career in the aftermath of his son Martin's suicide. The chapter explicates the essay Bateson sent to Lorenz in the summer of 1966, "The Role of Somatic Change in Evolution." By proposing a "simulated Lamarckian inheritance," the essay served as a challenge to the modern synthesis as a fully adequate explanation of evolutionary change. Bateson believed the essay to rescue some of his father's disfavored ideas by using systems theory concepts to disturb conventional Darwinism. These events coincided in 1966 with a chance reading of an old Irish myth, "The Conversion of Tuan MacCairill." The story echoed ideas about descent in both On Aggression and The Sword in the Stone, and the coincidence marked an affirmation for Bateson of his thought.


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