2Lt-22D1 | 33F5-30F | 50D1-58A4 | 42A2-34A1 | 22D2-30E | 50C10-42A3 | 58B1-60F2 | h21-YSt
J. Botas
CyO-Df(2R)B80 was generated by recombination between the region of CyO distal to the 58B breakpoint and Ts(Y;2Lt)B80. The result was a CyO chromosome in which the 2R tip from 60F2 to 2Rt was replaced by a segment of YS and the X tip (1Lt to 1B2-3) carrying y[+] (FBrf0068521, FBrf0053201). Df(2R)B80 disrupts Kr (FBrf0104713). In(2LR)CyO-Df(2R)B80 is a much better balancer for distal 2R genes that are still proximal to 60F2 (like Kr) than plain CyO.