Both lacked egg pigmentation but had nuptial spines, which help the male anchor to the female.
Approximately one-third of the mutagenized lines lacked egg-chambers that reached stage 8−9, perhaps reflecting mutation that cause early defects in oogenesis.
As is explained in the 'Results' section, we therefore confined our analysis to genes that were overrepresented in glp-1 ts) glp-1 ts which lanimalss and most of the germline, and established a high-confidence cutoff for genes that whichupregulackd by GSC abseggs andopposed to simost being expressed specifically in sofathe tissues.
Additionally, a small number of extant haplochromines lack egg-spots entirely, and it has been suggested that they have lost their dummies secondarily [ 7].
Expression of csf1ra was also detected in the tassels at the tips of the conspicuously elongated paired ventral fins of males of the non-haplochromine Tanganyikan species Ophthalmotilapia ventralis, where these yellow markings also function as egg-dummies [ 14], but not in the similarly elongated female ventral fins of O. ventralis that lack egg-dummies.
The first would be couples in which the woman lacks viable eggs and the man lacks viable sperm, "and cloning is the only way they can have a child who is biologically related to them".
Variation in the number of eggs + larvae among different colony sizes was assessed using Kruskal Wallis non-parametric test, rather than parametric ANOVA, because brood numbers were 1-truncated (colonies lacking any eggs or larvae were excluded).
We next tested the immune competence of eggs under challenge from bacterial infection, and found that eggs lacked endogenous production of antimicrobial peptides, despite well-developed responses in larvae.
For Mkrn1 knockdowns, 15% of eggs lacked dorsal appendages and 18% had a single fused dorsal appendage, whereas for jvl knockdowns 19% of eggs lacked dorsal appendages and 24% had a single fused dorsal appendage.
In addition, those eggs lacked vitamin B1.
