extra urogomphi (eu) gene
| eu = extra urogomphi |
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Gene:
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eu
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Feature/structure:
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Urogomphi [paired "horns" at posterior tip of abdomen of larvae and pupae]
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Linkage Group:
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2
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Origin:
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Spontaneous.
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Description:
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• Supernumerary pair of urogomphi develop via homeotic transformation of abdominal segment 9 toward 10.
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Illustration:
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| eu-D = extra urogomphi |
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Gene:
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eu
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Feature/structure:
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Posterior abdominal segments (A10 & A11)
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Linkage Group:
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( 2 ,
5 )
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Origin:
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Gamma irradiation of Rd,mas,p males, Beeman Lab, USGMRL, Manhattan, KS
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Description:
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• Translocation: T(2;5), confirmed cytologically
• Male sterile
• extra urogomphi (unilaterally or bilaterally), found in larvae and pupae
• Genital papillae of male and female pupae are abnormal
• Male aedaegus non-rotated, rendering males functionally sterile
• Female ovipositors with split lateral sclerite, causing dorsal-ventral flattening of ovipositor
• euD/eu beetles have reiterated genital papillae in the females, and lack an aedaegus in males
• Appears to be hyper-mutator stock
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Illustration:
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