scholarly journals Social conflicts in Dictyostelium discoideum : a matter of scales

2021 ◽  
Vol 1 ◽  
Author(s):  
Mathieu Forget ◽  
Sandrine Adiba ◽  
Silvia De Monte
Author(s):  
Mathieu Forget ◽  
Sandrine Adiba ◽  
Silvia De Monte

The ’social amoeba’ Dictyostelium discoideum, where aggregation of genet- ically heterogeneous cells produces functional collective structures, epitomizes social conflicts associated with multicellular organization. ’Cheater’ populations that have a higher chance – quantified by a positive spore bias – of surviving to the next generation are selectively advantaged. Their spread is thus expected to undermine collective functions over evolutionary times. In this review, we discuss the two main approaches adopted to conceptualize social conflicts in Dictyostelium discoideum: describing spore bias as a property of cell popula- tions (strains), or as a result of individual cell choices during the developmental process. These two points of view are often held equivalent and used inter- changeably. While the population-level view allows for more direct evolutionary inference, however, the cell-level interpretation reveals that such evolutionary predictions may be modified if developmental mechanisms, such as dependence on the environment and intrinsic unpredictability of cell fate choices, are taken into account. We conclude by proposing a set of open questions that in our opinion lie at the core of a multi-scale description of aggregative life cycles, where the formulation of predictive evolutionary models would include cell-level mechanisms responsible for spore bias alongside population-level descriptors of multicellular organization.


Author(s):  
Mathieu Forget ◽  
Sandrine Adiba ◽  
Silvia De Monte

The ’social amoeba’ Dictyostelium discoideum, where aggregation of genet- ically heterogeneous cells produces functional collective structures, epitomizes social conflicts associated with multicellular organization. ’Cheater’ populations that have a higher chance – quantified by a positive spore bias – of surviving to the next generation are selectively advantaged. Their spread is thus expected to undermine collective functions over evolutionary times. In this review, we discuss the two main approaches adopted to conceptualize social conflicts in Dictyostelium discoideum: describing spore bias as a property of cell popula- tions (strains), or as a result of individual cell choices during the developmental process. These two points of view are often held equivalent and used inter- changeably. While the population-level view allows for more direct evolutionary inference, however, the cell-level interpretation reveals that such evolutionary predictions may be modified if developmental mechanisms, such as dependence on the environment and intrinsic unpredictability of cell fate choices, are taken into account. We conclude by proposing a set of open questions that in our opinion lie at the core of a multi-scale description of aggregative life cycles, where the formulation of predictive evolutionary models would include cell-level mechanisms responsible for spore bias alongside population-level descriptors of multicellular organization.


2018 ◽  
pp. 169-180
Author(s):  
Nikolai A. Zhirov ◽  

On September, 21-23, the I.A. Bunin Yelets State University, supported by the Russian Foundation for Basic Research (RFFI), held an All-Russian scientific conference ‘In the time of change: Revolt, insurrection, and revolution in the Russian periphery in the 17th – early 20th centuries’. Scientists from various Russian regions participated in its work. The conference organizers focused on social conflicts in the Russian periphery. The first series of reports addressed the Age of Rebellions in the Russian history. They considered the role and the place of the service class people in anti-government revolts. Some scientists stressed the effect of official state policy on the revolutionary mood of the people. Some reports paid attention to jurisdictions and activities of the general police in the 19th – early 20th century and those of the Provisional Government militia. Other reports analyzed the participation of persons of non-peasant origin in the revolutionary events. They studied the effect of the revolutionary events on the mood and behavior of local people and the ways of solving conflicts between the authorities and the society. Most numerous series of reports were devoted to social conflicts in the Russian village at the turn of the 20th century, studied forms and ways of peasants' struggle against the extortionate cost of the emancipation, and offered a periodization of peasants' uprisings. The researchers stressed that peasants remained politically unmotivated; analysis of their relations with authorities shows that they were predominantly conservative and not prone to incitement to against monarchy. Some questions of source studies and methodology of studying the revolution and the preceding period were raised. Most researches used interdisciplinary methods, popular in modern humanities and historical science.


2018 ◽  
Vol 13 (2) ◽  
pp. 92
Author(s):  
V. V. Gorshkova ◽  
A. A. Melnikova

The article considers the contradictions and conflicts that are characteristic of modern Russian society. The processes of social disintegration are analyzed and interpreted as a result of fundamental social and economic transformations. The problems of economic inequality are presented in the historical perspective in close connection with the previous stages of Russia's socioeconomic development. Significant polarization of the population is one of the most significant conflict factors in modern society, which leads to an increase in protest moods and may in the long term threaten social upheavals. Nevertheless, dissatisfaction with the socio-economic situation does not lead to ideas of the unification and consolidation of society, but find expression in social conflicts. The emergence and development of social conflicts is influenced by a number of factors: economic, ethnic, religious. One of the most important characteristics of society is its social structure. After the collapse of the USSR, the previous social structure was abolished, and a new social reality was formed in Russia. When considering the stratification structure of society, most attention is paid to the middle class, which is considered the backbone of a stable society. The middle class in Russia is in the stage of formation, it is hardly possible to speak of a complete analogy with the middle class of Western society. The share of middle class in society can be estimated in different ways depending on the methodological approaches used by researchers. An important consequence of the transformation of the social structure was the problem of marginalization, since the dismantling of the old social structure and the slow formation of the new one put the social status and place in the division of labor system of many individuals into question. The sharp impoverishment of representatives of prestigious professions led to a reassessment of their situation, especially for the younger generation. When analyzing the origins of social conflicts in modern Russian society, it is necessary to consider the issue of the attitude of the broad masses of the population to power and national elites. It should be noted that power in Russia historically takes shape around specific leaders and does not have an institutional character. The most significant factor shaping the attitude towards the authorities and the elite in general in Russian society are the economic results of the market reforms that have taken place. Only a small part of the population believes that they won as a result of the changes that have taken place, the natural consequence of which is the population's distrust of the authorities and, in general, political institutions.


2020 ◽  
Vol 15 (2) ◽  
pp. 68
Author(s):  
А. Н. Сухов

This given article reveals the topicality not only of destructive, but also of constructive, as well as hybrid conflicts. Practically it has been done for the first time. It also describes the history of the formation of both foreign and domestic social conflictology. At the same time, the chronology of the development of the latter is restored and presented objectively, in full, taking into account the contribution of those researchers who actually stood at its origins. The article deals with the essence of the socio-psychological approach to understanding conflicts. The subject of social conflictology includes the regularities of their occurrence and manifestation at various levels, spheres and conditions, including normal, complicated and extreme ones. Social conflictology includes the theory and practice of diagnosing, resolving, and resolving social conflicts. It analyzes the difficulties that occur in defining the concept, structure, dynamics, and classification of social conflicts. Therefore, it is no accident that the most important task is to create a full-fledged theory of social conflicts. Without this, it is impossible to talk about effective settlement and resolution of social conflicts. Social conflictology is an integral part of conflictology. There is still a lot of work to be done, both in theory and in application, for its complete design. At present, there is an urgent need to develop conflict-related competence not only of professionals, but also for various groups of the population.


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