[1] Commissariat Energie Atom, Direct Sci Vivant, Inst Radiobiol Cellulaire & Mol, Lab Gametogenese, F-92265 Fontenay Aux Roses, France
[2] Inst Natl Sante & Rech Med, U967, Fontenay Aux Roses, France
[3] Univ Paris Diderot, Fontenay Aux Roses, France
[4] Univ Paris 11, Fontenay Aux Roses, France
[5] Hop Cochin, APHP, Serv Biol Reprod, F-75674 Paris, France
[6] CNRS, UMR 8104, Paris, France
[7] Univ Paris 05, Paris, France
[8] Inst Cochin, Inst Natl Sante & Rech Med, U1016, Paris, France