An Hmr+ duplication reduces hybrid female viability and interacts with Lhr

Hybrid female progeny (male progeny in parentheses)a
Female parent (all D. mel.)Male parentRelative viability Dp/2sib (%)No. +/2sib for referenceRelative viability Dp/2sib (%)No. +/2sib for referenceRelative viability Dp/2sib (%)No. +/2sib for reference
(A) Df(1)HC133; Dp(1;2)v+75d/+D. mel. Oregon-R (control)62.8 (103.3)b242102.2 (80.6)b369117.3 (74.8)b139
D. mau. Iso 19773.96996.099105.6125
D. mau. C164.183.117288.832280.0275
D. sim. v89.0246100.02045.5110
D. sim. C167.482.77590.1161n.d.
D. sim. Tsimbazaza105.211563.34960.6169
D. sim. Lhr89.7 (31.1)b16588.5 (15.9)b7889.8 (0)b118
D. sech. w107.226312.52871.4138
D. sech. v119.02791.5399n.d.
(B) ras v; Dp(1;2)v+75d/+D. mel. Oregon-R (control)n.d.146.8 (97.2)156 (176)76.5 (50.0)68 (68)
D. mau. Iso 197103.06621.4285.753
D. mau. C164.153.615155.645912.7316
D. sim. v140.89830.4523n.d.
D. sim. Tsimbazaza81.012121.8110n.d.
D. sim. Lhr113.9 (4.4)237 (204)84.8 (6.7)269 (225)89.8 (0)401 (108)
D. sech. w0.24412018n.d.
D. sech. v01420194n.d.
(C) Dp(1;2)v+75d/+D. mau. C164.152.617311.4201n.d.
D. sim. v54.91730176n.d.
D. sim. C167.442.01435.7176n.d.
D. sim. Tsimbazaza178.81044.8126n.d.
D. sim. Lhr106.8 (3.1)118 (97)119.6 (0)46 (61)n.d.
(D) Dp(1;2)v+63i/+D. sim. y; Lhrn.d.82.7 (85.3)335 (312)n.d.
(E) Hmr1; Dp(1;2)v+63i/+D. mau. C164.1128.9 (56.6)152 (99)93.0 (75.0)200 (24)n.d.
  • Full genotypes of females crossed to males in column 2: (A) Df(1)HC133, Hmr; Dp(1;2)v+75d/CyO;; (B) ras v; Dp(1;2)v+75d/CyO; (C) Dp(1;2)v+75d/CyO; (D) Dp(1;2)v+63i/CyO; (E) y Hmr1 v Dp(1;2)v+63i/CyO. n.d., not determined.

  • a Excluding crosses with Oregon-R or D. simulans Lhr males, a small number of male progeny were obtained in some crosses and are not shown. These were presumed to be exceptional males; all displayed the expected X-linked markers if present in the cross.

  • b Calculated as number of Df(1)HC133/Y; Dp(1;2)v+75d/+ males relative to Df(1)HC133/+; Dp(1;2)v+75d/+ female siblings.