| A(Es-1) = Abdominal(Extra sclerite) |
|
Gene:
|
A
|
|
Feature/structure:
|
Ventral abdominal segment 2
|
|
Linkage Group:
|
( 2 ,
4 )
|
|
Origin:
|
Gamma irradiation of Ga-1, Beeman Lab
|
|
Description:
|
• 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.
|
| |
|