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Journal articles

Genetic identification of neurons controlling a sexually dimorphic behaviour.

Abstract : In the fruit fly Drosophila melanogaster, locomotor activity is sexually dimorphic: female flies constantly modulate their activity pattern whereas males show a steadier, stereotyped walking pace [1]. Here, we mapped the area of the brain controlling this behavioural dimorphism. Adult male Drosophila expressing a dominant feminising transgene in a small cluster of neurons in the pars intercerebralis exhibited a female-like pattern of locomotor activity. Genetic ablation of these neurons prevented the feminisation of the locomotor activity of transgenic males. The results suggest that this cluster of neurons modulates sex-specific activity, but is not involved in initiating fly locomotion. Nor does it control male courtship behaviour, because feminisation of courtship was not correlated with the feminisation of locomotor activity.
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Submitted on : Tuesday, April 10, 2007 - 5:11:22 PM
Last modification on : Sunday, June 26, 2022 - 11:46:59 AM

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Sylvain Gatti, Jean-François Ferveur, Jean-Rene Martin. Genetic identification of neurons controlling a sexually dimorphic behaviour.. Current Biology - CB, Elsevier, 2000, 10 (11), pp.667-670. ⟨10.1016/S0960-9822(00)00517-0⟩. ⟨hal-00140921⟩



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