| A(Es-1) = Abdominal(Extra sclerite) |
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Gene:
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A
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Feature/structure:
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Ventral abdominal segment 2
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Linkage Group:
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( 2 ,
4 )
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Origin:
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Gamma irradiation of Ga-1, Beeman Lab
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Description:
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• Homeotic transformation of ventral part of abdominal segment 2 [normally forming the socket of the coxae of the third pair of legs] towards segment 3.
• Excellent crossover suppressor and balancer [second only to Ey in usefulness].
• No crossover suppr. between HOM-C and Rd.
• Ag/Es1 spontaneously generates viable Df[HOM-C] gametes at a frequency of 1/100.0 when outcrossed [see Ag].
• Generated euD when outcrossed [BB, p. 32].
• Translocation demonstrated cytologically, both cis and trans with Spa.
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