Semiquantitative analysis of oskar mRNA and Oskar protein distribution in fixed oocytes raised at 25°C
| Genotype | Oocytes | oskar mRNA | Oskar protein | ||
| Off center | Width of PD | Localized fraction of mRNA | Width of PD | ||
| n | µm | µm | % | µm | |
| Stage 9 | |||||
| Wild type | 70 | 26.41 ± 1.80 (1.0) | 8.89 ± 0.36 (1.0) | 51.2 ± 2.2 (1.0) | 12.21 ± 0.58 (1.0) |
| klarYG3/klarYG3 | 33 | 31.73 ± 2.97 (0.13) | 10.51 ± 0.76 (0.037) | 62.3 ± 3.3 (0.007) | 13.54 ± 0.83 (0.359) |
| Khc17/+; klarYG3/klarYG3 | 50 | 27.78 ± 2.14 (0.718)a | 9.98 ± 0.45 (0.05)a | 53.8 ± 2.8 (0.536)a | 10.34 ± 0.72 (0.012)a |
| pat1r/pat1r; klarYG3/klarYG3 | 23 | 30.20 ± 2.33 (0.235) | 9.26 ± 0.53 (0.401)b | 64.3 ± 2.9 (0.002)b | 9.36 ± 0.76 (0.004)a,b |
| pat1r/pat1r | 19 | 22.00 ± 4.513 (0.195) | 18.93 ± 1.77 (<0.001) | 47.1 ± 4.6 (0.614) | 18.40 ± 2.86c (0.015) |
| osk54/+ | 33 | 32.83 ± 2.76 (0.06) | 11.95 ± 0.64 (<0.001) | 62.2 ± 2.9 (0.005) | 12.53 ± 0.98 (0.343) |
| oskA87/+ | 39 | 25.60 ± 1.79 (0.937) | 9.50 ± 0.43 (0.061) | 56.2 ± 2.5 (0.047) | 9.669 ± 0.607 (0.002) |
| klarYG3, oskA87/klarYG3, + | 88 | 37.77 ± 1.31a (<0.001) | 9.70 ± 0.26 (0.032) | 74.7 ± 0.8 (<0.001)a | 11.125 ± 0.441 (0.040)a |
| klarYG3/klar1 | 32 | 31.30 ± 1.90 (0.870)d | 8.44 ± 0.55 (0.013)d | 77.5 ± 1.2 (<0.001)d | ND |
| Stage 10 | |||||
| Wild type | 62 | 56.05 ± 4.31 (1.0) | 12.05 ± 0.45 (1.0) | 51.7 ± 2.9 (1.0) | 17.87 ± 0.61 (1.0) |
| klarYG3/klarYG3 | 42 | 68.57 ± 5.49 (0.026) | 15.54 ± 0.61 (<0.001) | 67.5 ± 3.1 (<0.001) | 21.03 ± 0.80 (<0.001) |
| Khc17/+; klarYG3/klarYG3 | 59 | 64.24 ± 3.08 (0.440)a | 14.59 ± 0.40 (<0.001) | 57.6 ± 2.7 (0.116)a | 17.85 ± 0.56 (0.809)a |
| pat1r/pat1r; klarYG3/klarYG3 | 25 | 61.37 ± 2.91 (0.551)a | 13.03 ± 0.57 (0.214)a,b | 49.1 ± 3.9 (0.649)a | 17.45 ± 0.83 (0.855)a,b |
| pat1r/pat1r | 41 | 62.03 ± 4.915 (0.461) | 16.64 ± 0.81 (<0.001) | 46.9 ± 3.1 (0.306) | 22.62 ± 0.96 (<0.001) |
| osk54/+ | 35 | 73.38 ± 1.98 (0.033) | 16.95 ± 0.66 (<0.001) | 67.0 ± 2.5 (0.001) | 18.25 ± 0.76 (0.496) |
| oskA87/+ | 41 | 56.33 ± 3.38 (0.164) | 12.30 ± 0.51 (0.654) | 39.1 ± 2.3 (0.007) | 16.26 ± 0.63 (0.166) |
| klarYG3, oskA87/klarYG3, + | 63 | 76.74 ± 2.89 (<0.001) | 11.64 ± 0.35a (0.647) | 58.8 ± 2.3 (0.077)a | 15.86 ± 0.67 (0.112)a |
| klarYG3/klar1 | 28 | 76.44 ± 4.16 (0.390)d | 13.85 ± 0.64 (0.094)d | 67.3 ± 3.1 (0.686)d | ND |
| Genotype | Oocytes | oskar mRNA | Oskar protein | ||
| Off center | Width of PD | Localized fraction of mRNA | Width of PD | ||
| n | µm | µm | % | µm | |
| Stage 9 | |||||
| Wild type | 70 | 26.41 ± 1.80 (1.0) | 8.89 ± 0.36 (1.0) | 51.2 ± 2.2 (1.0) | 12.21 ± 0.58 (1.0) |
| klarYG3/klarYG3 | 33 | 31.73 ± 2.97 (0.13) | 10.51 ± 0.76 (0.037) | 62.3 ± 3.3 (0.007) | 13.54 ± 0.83 (0.359) |
| Khc17/+; klarYG3/klarYG3 | 50 | 27.78 ± 2.14 (0.718)a | 9.98 ± 0.45 (0.05)a | 53.8 ± 2.8 (0.536)a | 10.34 ± 0.72 (0.012)a |
| pat1r/pat1r; klarYG3/klarYG3 | 23 | 30.20 ± 2.33 (0.235) | 9.26 ± 0.53 (0.401)b | 64.3 ± 2.9 (0.002)b | 9.36 ± 0.76 (0.004)a,b |
| pat1r/pat1r | 19 | 22.00 ± 4.513 (0.195) | 18.93 ± 1.77 (<0.001) | 47.1 ± 4.6 (0.614) | 18.40 ± 2.86c (0.015) |
| osk54/+ | 33 | 32.83 ± 2.76 (0.06) | 11.95 ± 0.64 (<0.001) | 62.2 ± 2.9 (0.005) | 12.53 ± 0.98 (0.343) |
| oskA87/+ | 39 | 25.60 ± 1.79 (0.937) | 9.50 ± 0.43 (0.061) | 56.2 ± 2.5 (0.047) | 9.669 ± 0.607 (0.002) |
| klarYG3, oskA87/klarYG3, + | 88 | 37.77 ± 1.31a (<0.001) | 9.70 ± 0.26 (0.032) | 74.7 ± 0.8 (<0.001)a | 11.125 ± 0.441 (0.040)a |
| klarYG3/klar1 | 32 | 31.30 ± 1.90 (0.870)d | 8.44 ± 0.55 (0.013)d | 77.5 ± 1.2 (<0.001)d | ND |
| Stage 10 | |||||
| Wild type | 62 | 56.05 ± 4.31 (1.0) | 12.05 ± 0.45 (1.0) | 51.7 ± 2.9 (1.0) | 17.87 ± 0.61 (1.0) |
| klarYG3/klarYG3 | 42 | 68.57 ± 5.49 (0.026) | 15.54 ± 0.61 (<0.001) | 67.5 ± 3.1 (<0.001) | 21.03 ± 0.80 (<0.001) |
| Khc17/+; klarYG3/klarYG3 | 59 | 64.24 ± 3.08 (0.440)a | 14.59 ± 0.40 (<0.001) | 57.6 ± 2.7 (0.116)a | 17.85 ± 0.56 (0.809)a |
| pat1r/pat1r; klarYG3/klarYG3 | 25 | 61.37 ± 2.91 (0.551)a | 13.03 ± 0.57 (0.214)a,b | 49.1 ± 3.9 (0.649)a | 17.45 ± 0.83 (0.855)a,b |
| pat1r/pat1r | 41 | 62.03 ± 4.915 (0.461) | 16.64 ± 0.81 (<0.001) | 46.9 ± 3.1 (0.306) | 22.62 ± 0.96 (<0.001) |
| osk54/+ | 35 | 73.38 ± 1.98 (0.033) | 16.95 ± 0.66 (<0.001) | 67.0 ± 2.5 (0.001) | 18.25 ± 0.76 (0.496) |
| oskA87/+ | 41 | 56.33 ± 3.38 (0.164) | 12.30 ± 0.51 (0.654) | 39.1 ± 2.3 (0.007) | 16.26 ± 0.63 (0.166) |
| klarYG3, oskA87/klarYG3, + | 63 | 76.74 ± 2.89 (<0.001) | 11.64 ± 0.35a (0.647) | 58.8 ± 2.3 (0.077)a | 15.86 ± 0.67 (0.112)a |
| klarYG3/klar1 | 28 | 76.44 ± 4.16 (0.390)d | 13.85 ± 0.64 (0.094)d | 67.3 ± 3.1 (0.686)d | ND |
Means ± SEM; the numbers in parentheses indicate the p-value of a pairwise Mann–Whitney U test against the wild-type control of a given developmental stage performed after a Kruskal–Wallis test rejecting similarity of the data distributions (α = 0.05). Off center represents the difference between the observed and the calculated center of mass along the AP axis. Width of PD is the onset of oskar mRNA or Oskar protein enrichment, when the observed signal uninterruptedly exceeds the double of the calculated or expected signal. Distance is measured from the posterior pole. Localized fraction of mRNA is the fraction of the oskar mRNA signal found in the posterior domain.
Pairwise Mann–Whitney U test against the klarYG3/klarYG3 control with P < 0.05.
Pairwise Mann–Whitney U test against the pat1r/pat1r control with P < 0.05.
Only 9 out of 19 oocytes had detectable Oskar protein.
Pairwise comparison of klarYG3/klar1 with klarYG3/klarYG3 mutant oocytes using the appropriate tests.