Social factors and aromatase gene expression during adult male-to-female sex change in captive leopard grouper Mycteroperca rosacea

Romo-Mendoza, Daniel; Campos‐Ramos, Rafael; Vázquez‐Islas, Grecia; Burgos-Aceves, Mario Alberto; Esquivel‐Gutiérrez, Edgar; Guerrero‐Tortolero, Danitzia A.

doi:10.1016/j.ygcen.2018.01.019

Cited by 5 publications

(6 citation statements)

References 34 publications

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“…The cluster 'SEX CHANGE' (see Figure 4g) is composed of a variety of studies that refer to both the 'ENVIRONMENTAL-SEX-DETERMINATION' and 'SEX-DIFFERENTIATION', as these occur naturally in several animals, such as fishes and other marine animals [60]. The 'HERMAPHRODITISM' of animals that have both sexes is discussed, 'PROTOGYNY' refers to animals in which the female sexual organs reach maturity faster than male organs [61] and 'PROTANDRY' refers to the animals in which the male sexual organs are the first to reach maturity.…”

Section: Sex Changementioning

confidence: 99%

A Science Mapping Analysis of Sixty-Seven Years of Scientific Evolution about the Transgender Population

Bender¹,

Sott²,

Fernandes³

et al. 2021

Preprint

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Gender and identity issues permeate society as a whole. Therefore, the matters involving transgender individuals should be analised in order to understand the difficulties experienced by this population and the social practices implemented. In this sense, the objective of this study was to investigate the strategic themes and their evolution in relation to the theme. For this, a bibliometric performance and network analysis (BPNA) was carried out with the existing data in the Web of Science database between 1954 and march 2021. Twenty-three thousand and four hundred and seventy-one (23,471) articles were identified, which were included in the SciMAT software to perform a bibliometric analysis, resulting in the graph of the thematic evolution structure and the strategic diagram, in which 8 motor themes and a cross-cutting theme of great magnitude are highlighted, which are discussed in depth. The results show the relation between the transgender theme and gender, identity, sexual orientation, hormone therapy and gender-affirming surgery. It is concluded that, despite the large number of associated researches, some areas of study are still incipient, such as the inclusion of transgender people in the formal labor market and in the prison context, thus opening field for further studies.

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Section: Sex Changementioning

confidence: 99%

A Science Mapping Analysis of Sixty-Seven Years of Scientific Evolution about the Transgender Population

Bender¹,

Sott²,

Fernandes³

et al. 2021

Preprint

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“…Socially controlled sex change involves co‐ordinated biological changes along multiple body axes that interact with each other (Goikoetxea et al ., 2017). The hypothalamic–pituitary–gonadal (HPG) axis plays a principal role in reproduction, and sex‐change initiation is transduced via this axis to culminate in gonadal restructure and sex reversal (Godwin, 2010; Muncaster et al ., 2013; Nakamura et al ., 1989; Romo‐Mendoza et al ., 2018). The hypothalamic–pituitary–interrenal (HPI) axis affects sexual behavior and reproduction through its communication with the HPG axis.…”

Section: Introductionmentioning

confidence: 99%

Bidirectional sex‐change behavior and physiological aspects in the Gorgeous goby Lythrypnus pulchellus (Gobiidae)

Muñoz‐Arroyo,

Guerrero‐Tortolero,

Hernández‐Olalde

et al. 2023

Journal of Fish Biology

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The Gorgeous goby Lythrypnus pulchellus shows extreme sexual plasticity with the bidirectional sex change ability socially controlled in adults. Therefore, this study describes how the hierarchical status affects hormone synthesis through newborn hormone waste products in water and tests the influence of body size and social dominance establishment in sex reversal duration and direction. The associated changes of behavior and hormone levels are described under laboratory conditions in male‐male and female‐female pairs of similar and different body size, recording the changes until spawning. The status establishment occurred in a relatively shorter time period in male and female pairs of different size (1‐3 days [d]) compared to those of similar size (3‐5d), but the earlier one did not significantly affect the overall time of sex change (verified by pair spawning). The changes in gonads, hormones and papilla occurred in sex‐changer individuals, but the first one was observed in behavior. Courtship started at 3‐5d in male pairs and from 2h‐1d in female pairs of both groups of different and similar size, respectively. Hormones did not gradually move in the new sexual phenotype direction during the sex‐change time course. Nonetheless, estradiol regulated sex change, 11‐ketotestosterone enabled bidirectional sex change and was modulated by agonistic interactions. Cortisol is associated with status and gonadal sex change. In general, similar mechanisms underlie sex change in both directions with a temporal change sequence in phases. These results shed new light on sex change mechanisms. Further studies should be performed to determine whether these localized changes exist in the steroid hormone synthesis along the brain‐pituitary gonad axis during social and bidirectional sex changes in L. pulchellus.This article is protected by copyright. All rights reserved.

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“…Studies carried out in the red-spotted grouper Epinephelus akaara (Temminck & Schlegel 1843), a confirmed bi-directional sex change species, showed that a male-to-female sex change took place when the males were isolated, although only a few males developed slightly maturing oocytes after keeping isolated for 1 year (Okumura, 2001;Tanaka et al, 1990). In gonochoristic leopard grouper Mycteroperca rosacea (Streets 1877), male-to-female sex change of captive M. rosacea was successfully induced by social control (Romo-Mendoza et al, 2018). The success of socially controlled sex change in other hermaphrodite species demonstrates that social control of sex change is a common phenomenon in hermaphrodite fishes (Nakamura et al, 2005;Nemtzov, 1985;Robertson, 1972;Warner & Swearer, 1991).…”

Section: Introductionmentioning

confidence: 99%

Socially controlled male‐to‐female sex reversal in the protogynous orange‐spotted grouper, Epinephelus coioides

Chen

Xiao

Peng

et al. 2019

Journal of Fish Biology

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Socially controlled sex change in teleosts is a dramatic example of adaptive reproductive plasticity. In many cases, the occurrence of sex change is triggered by a change in the social context, such as the disappearance of the dominant individual. The orange‐spotted grouper Epinephelus coioides is a typical protogynous hermaphrodite fish that changes sex from female to male and remains male throughout its life span. In this study, male‐to‐female sex reversal in male Epinephelus coioides was successfully induced by social isolation. The body length and mass, gonadal change, serum sex steroid hormone levels and sex‐related gene expression patterns during the process of socially controlled male‐to‐female sex reversal in E. coioides were systematically examined. This report investigates the physiological mechanisms of the socially controlled male‐to‐female sex reversal process in a protogynous hermaphrodite grouper species. The results enable us to study the physiological control of sex change, not only from female to male, but also from male to female.

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Social factors and aromatase gene expression during adult male-to-female sex change in captive leopard grouper Mycteroperca rosacea

Cited by 5 publications

References 34 publications

A Science Mapping Analysis of Sixty-Seven Years of Scientific Evolution about the Transgender Population

A Science Mapping Analysis of Sixty-Seven Years of Scientific Evolution about the Transgender Population

Bidirectional sex‐change behavior and physiological aspects in the Gorgeous goby Lythrypnus pulchellus (Gobiidae)

Socially controlled male‐to‐female sex reversal in the protogynous orange‐spotted grouper, Epinephelus coioides

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