What question did this study set out to answer?

To review the direct and indirect mechanisms through which the mammalian Y chromosome controls male germ cell differentiation and spermatogenesis in mice.

March 1, 1987Development

The role of the mammalian Y chromosome in spermatogenesis

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Authors

PBPaul S. BurgoyneScottish National Blood Transfusion Service

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Implication

Literature review uncovers direct and indirect roles of the Y chromosome in mouse male germ cells, highlighting genetic requirements across fetal and meiotic stages.

Key Points

To review the direct and indirect mechanisms through which the mammalian Y chromosome controls male germ cell differentiation and spermatogenesis in mice.
Synthesized findings from mouse genetic models with varied sex chromosome complements (including XX, XO, and XOSxr).
Evaluated chromosomal function across fetal sex differentiation, postnatal spermatogonial entry into meiosis, and meiotic prophase pairing.
The testis-determining gene (Tdy) indirectly drives germ cells toward the male pathway by inducing testicular development, whereas an extra X chromosome causes perinatal death of XX prospermatogonia.
The Y-chromosomal gene Spy (potentially mediated by H-Y antigen) directly enables spermatogonial survival and entry into meiosis approximately one week after birth.
During meiotic prophase, the Y chromosome functions as a vital pairing partner for the X chromosome; failure of pairing leads to severe germ cell loss and omission of the second meiotic division.

Cite This Study

Paul S. Burgoyne (1987) studied this question.

synapsesocial.com/papers/6a029bc967f6ea5cc8754da7 https://doi.org/10.1242/dev.101.supplement.133

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Implication

Literature review uncovers direct and indirect roles of the Y chromosome in mouse male germ cells, highlighting genetic requirements across fetal and meiotic stages.

The role of the mammalian Y chromosome in spermatogenesis

Discussion

Member takes

Implication

Key Points

Cite This Study

The role of the mammalian Y chromosome in spermatogenesis

Discussion

Member takes

Implication

Key Points

Cite This Study

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