Transposon fusion gave birth toFem,Bombyx morifemale determining gene
Jung Lee,
Toshiaki Fujimoto,
Katsushi Yamaguchi
et al.
Abstract:Fem is a W-linked piRNA precursor, and Fem piRNA is a master gene of female determination in Bombyx mori. Since Fem has significantly low similarity to any known sequences and the origin of Fem remains unclear, two hypotheses have been proposed for the origin of Fem. The first one is that Fem is an allele of Masc, while the second one is that Fem arose by transposition of Masc. To draw a solid conclusion, we determined the W chromosome sequences of B. mori and a closely relative bombycid species of Trilocha va… Show more
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