Differential proteomics between unhatched male and female egg yolks reveal the molecular mechanisms of sex-allocation and sex-determination in chicken

Xiang, Xiaole; Yu, Zhuosi; Liu, Yongle; Huang, Yiqun; Wang, Jingjing; Chen, Lei; Ma, Meihu

doi:10.1016/j.psj.2022.101906

Cited by 1 publication

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References 57 publications

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“…Inspired by gender control systems applied in dairy farms, the development of avian sex control technologies is a promising means to solve the abovementioned concerns and improve breeding efficiency [240,241]. Investigations of avian sex determination, sex differentiation, and sex reversal have provided abundant insights into the development of early sex detection and sex control technologies [14,101,242]. However, sex research in birds is a huge puzzle, full of various unknown regulatory networks, and we cannot clearly explain the detailed molecular biological mechanisms of sex determination and differentiation in birds at present.…”

Section: Critical Issues and Challenges Of Avian Sex Controlmentioning

confidence: 99%

Overview of Avian Sex Reversal

Zhang

Chen

et al. 2023

IJMS

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Sex determination and differentiation are processes by which a bipotential gonad adopts either a testicular or ovarian cell fate, and secondary sexual characteristics adopt either male or female developmental patterns. In birds, although genetic factors control the sex determination program, sex differentiation is sensitive to hormones, which can induce sex reversal when disturbed. Although these sex-reversed birds can form phenotypes opposite to their genotypes, none can experience complete sex reversal or produce offspring under natural conditions. Promising evidence indicates that the incomplete sex reversal is associated with cell autonomous sex identity (CASI) of avian cells, which is controlled by genetic factors. However, studies cannot clearly describe the regulatory mechanism of avian CASI and sex development at present, and these factors require further exploration. In spite of this, the abundant findings of avian sex research have provided theoretical bases for the progress of gender control technologies, which are being improved through interdisciplinary co-operation and will ultimately be employed in poultry production. In this review, we provide an overview of avian sex determination and differentiation and comprehensively summarize the research progress on sex reversal in birds, especially chickens. Importantly, we describe key issues faced by applying gender control systems in poultry production and chronologically summarize the development of avian sex control methods. In conclusion, this review provides unique perspectives for avian sex studies and helps scientists develop more advanced systems for sex regulation in birds.

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