Person: Muñoz Reyes, José Antonio
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Muñoz Reyes
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José Antonio
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Publication The Relationship between Androgen Receptor Gene Polymorphism, Aggression and Social Status in Young Men and Women(2022) Valenzuela, Nohelia; Ruiz-Pérez, Irene; Rodríguez-Sickert, Carlos; Polo, Pablo; Yeste-Lizán, Ali; Muñoz Reyes, José Antonio; Pita, Miguel; Muñoz Reyes, José AntonioIn both sexes, aggression has been described as a critical trait to acquire social status. Still, almost uniquely in men, the link between aggressiveness and the genetic background of testosterone sensitivity measured from the polymorphism in the androgen receptor (AR) gene has been previously investigated. We assessed the relevance of the AR gene to understand aggression and how aggressiveness affects social status in a cross-sectional study of 195 participants, for the first time in both young men and women. We estimated polymorphism sequences from saliva and measured aggression and self-perceived social status. Unfortunately, the results did not support our prediction because we did not find any of the expected relationships. Therefore, the results suggest that the genetic association between aggressive mechanisms and polymorphism of the AR gene is less straightforward than expected, at least in men, and seems to indicate that aggression is not usually used to gain social status in our populationPublication Androgen receptor gene and sociosexuality. Does fighting ability moderate the effect of genetics in reproductive strategies?(2022-12) Polo, Pablo; Valenzuela, Nohelia; Muñoz Reyes, José Antonio; Ruiz-Pérez, Irene; Rodríguez-Sickert, Carlos; Matellano, Margarita; Fernández-Martínez, Ana B.; Pita, Miguel; Muñoz Reyes, José AntonioSociosexuality is a reliable proxy to evaluate the trade-off between short-term and long-term human mating strategies. The androgen receptor (AR) gene CAG-repeats polymorphism regulates the effect of testosterone and the expression of testosterone-related traits commonly associated with short-term mating strategies. According to the strategic pluralism hypothesis, a more effective receptor would prompt a short-term mating strategy to maximize the number of sexual partners, but studies are inconclusive and contradictory. The effect of a particular gene in behavior is frequently small and affected by the social environment and other variables, particularly psychological and personality traits. In the current study we propose the effect of the AR gene polymorphism in sociosexuality to be moderated by self-perceived fighting ability, a psychological attribute relevant in intrasexual competition. Our objective is to reveal if the CAG polymorphism is associated with a short-term strategy as expected from the strategic pluralism hypothesis, or conversely with long-term investments to maximize parental care. We fail to find any effect of the CAG polymorphism over mating strategies. However, self-perceived fighting ability is related to short-term mating orientation but not to the number of past sexual partners. In conclusion, we find no clear evidence about the potential role of CAG polymorphism of the AR gene over sociosexual attitudes and behavior. However, results from other studies suggest that there is evidence that genetic factors influence sociosexuality, but it is necessary to consider simultaneously more than a single genetic polymorphism and other psychological and physiological variables.