TABLE 8

Interpretation of the segregation ratios (H:F) observed (upper numbers in each cell) in families with the cytoplasm of the isofemales

Hermaphrodites (G ratios)
FemalesH168
+/+ r2/+ +/+
H174
R1/+ r2/r2 +/+
H169+/+ r2/r2 +/+ or R1/+ r2/+ +/+H143
+/+ r2/r2r3/+
H171
+/+ r2/+ r3/r3
H142
R1/+ r2/+ r3/+
F107 +/+ r2/- r3/+0:44 (0:1) 02:7 (1:3)1:1 (1:1)
F108 R1/+ r2/+ +/+11:18 (3:5) 0.0023:18 (3:13) 0.29 (1:3) 1.4490:13 (3:13)
F114 R1/+ r2/+ +/+0:7 (1:7) 0.068
F115 R1/+ r2/+ +/+2:20 (1:7) 0.25511:30 (3:5) 2.0912:5 (1:3 or 3:13)
F116 +/+ r2/+ +/+0:41 (0:1) 04:40 (1:7) 0.510
F117 R1/+ r2/+ +/+0:9 (1:7) 2.402:9 (1:3)4:53 (1:7) 1.823
F118 R1/+ r2/+ r3/+11:18 (3:5) 0.0027:17 (1:3) 0.215 (3:13) 1.5222:25 (25:39) 1.162
F124 R1/+ r2/+ +/+1:31 (1:7) 3.5389:22 (1:3) 0.2603:28 (1:7) 0.242
F125 R1/+ r2/+ +/+14.20 (3:5) 0.1944:16 (3:13) 0.020 (1:3) 0.28011:27 (3:13) 3.312
  • Observed ratios and genotypes assigned under a three-locus model in which epistatic restorers at loci 1 and 2 interact to produce the hermaphrodite phenotype, while a restorer at a third locus restores male fertility independently of the genotypes at the first two. The genotypes assigned to the females and hermaphrodites that fit best on this model are shown, together with expected ratios (numbers in parentheses) and G-test results. Note that the hermaphrodites do not necessarily have restored genotypes, because they come from independent lineages from those of the isofemales.