A sex-specific transcription factor controls male identity in a simultaneous hermaphrodite.
A sex-specific transcription factor controls male identity in a simultaneous hermaphrodite.
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DOI:
10.1038/ncomms2811
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发表时间:
2013
影响因子:
16.6
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中科院分区:
文献类型:
--
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Evolutionary transitions between hermaphroditic and dioecious reproductive states are found in many groups of animals. To understand such transitions, it is important to characterize diverse modes of sex determination utilized by metazoans. Currently, little is known about how simultaneous hermaphrodites specify and maintain male and female organs in a single individual. Here we show that a sex-specific gene, Smed-dmd-1 encoding a predicted doublesex/male-abnormal-3 (DM) domain transcription factor, is required for specification of male germ cells in a simultaneous hermaphrodite, the planarian Schmidtea mediterranea. dmd-1 has a male-specific role in the maintenance and regeneration of the testes and male accessory reproductive organs. In addition, a homologue of dmd-1 exhibits male-specific expression in Schistosoma mansoni, a derived, dioecious flatworm. These results demonstrate conservation of the role of DM domain genes in sexual development in lophotrochozoans and suggest one means by which modulation of sex-specific pathways can drive the transition from hermaphroditism to dioecy. Hermaphrodites develop and maintain male and female reproductive organs in a single individual. Chong et al. show that a DM domain transcription factor is required for male germ cell regeneration and maintains ‘maleness’ in a hermaphrodite, the planarian flatworm Schmidtea mediterranea.
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影响因子:
--
作者:
King RS;Newmark PA
通讯作者:
Newmark PA
影响因子:
2.1
作者:
Eppley, S. M.;Jesson, L. K.
通讯作者:
Jesson, L. K.
影响因子:
16.2
作者:
Kimura, Ken-ichi;Hachiya, Tomoaki;Yamamoto, Daisuke
通讯作者:
Yamamoto, Daisuke
影响因子:
5.8
作者:
Larkin, M. A.;Blackshields, G.;Higgins, D. G.
通讯作者:
Higgins, D. G.
影响因子:
4.1
作者:
Campos, A;Cummings, MP;Laclette, JP
通讯作者:
Laclette, JP