ZFIN ID: ZDB-FIG-210324-48
Costantini et al., 2020 - Novel RPL13 variants and variable clinical expressivity in a human ribosomopathy with spondyloepimetaphyseal dysplasia. Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research   36(2):283-297 Full text @ J. Bone Miner. Res.
ADDITIONAL FIGURES
PHENOTYPE:
Fish:
Observed In:
Stage Range: Day 5 to Days 30-44

Fig. 6 Evaluation of the rpl13L191Afs/L191Afs zebrafish. (A) Sanger sequencing confirmed the genotype of the homozygous rpl13L191Afs/L191Afs (rpl13 mutant) fish. (B) qPCR performed on RNA extracted from three WT and three rpl13L191Afs/L191Afs reveals a partial activation of nonsense‐mediated mRNA decay in mutant zebrafish compared with WT. The p value from Student's t test. (C) WB performed on protein extracts from three WT and three rpl13L191Afs/L191Afs fish reveals reduced expression of eL13 in mutant fish compared with WT. The p value from Student's t test. (D) Alcian blue staining of control (WT) and rpl13L191Af/L191Afs zebrafish at 5 dpf, 7 dpf, and 1 mpf. Compared with WT, cartilage deformities in the head of the rpl13L191Afs/L191Afs are evident. Red lines indicate the ceratohyal (CH) angle, yellow line indicates the distance between the tip of CH and the tip of Meckel's (MK) cartilages, and green line indicates the MK width. Scale bar at 5 and 7 dpf = 200 μm; scale bar at 1 mpf = 500 μm. (E) At 5 dpf, rpl13L191Af/L191Afs show a significant increase of the CH angle compared with WT and (F) at 7 dpf a significant reduction in the distance between the CH and MK cartilages is evident in mutants compared with WT. The p values from Student's t test. (G) At 1 mpf, the frequency of fish with short distance (<0.53 mm) between the CH and MK cartilages and (H) the frequency of fish with narrower MK cartilage were significantly higher in mutants compared with WT. The p values from chi‐square test. (I) Standard length (SL) distribution is significantly different in WT compared with rpl13 mutants at 1 mpf, with a higher number of long fish (>6.5 mm) in the WT population compared with mutants. The p value from chi‐square test. (J) A higher frequency of fish with high SL/HAA (height at anterior margin of anal fin) ratio is found in the mutant group compared with WT group. Morphometric parameters (panels G‐J) were categorized by global quartiles, presented as number of fish (%) in each category, and frequencies analyzed by chi‐square test. (K) Swim bladder inflation in control (WT) and rpl13L191Af/L191Afs zebrafish at 7 dpf. Arrows indicate a partially inflated lobe in mutants compared with WT. Scale bar = 1 mm. Quantitative analysis shows a significant delay in the swim bladder inflation of the first lobe in rpl13L191Af/L191Afs compared with WT. The p values from crosstabs with chi‐square test for frequencies.

Gene Expression Details No data available
Antibody Labeling Details No data available
Phenotype Details
Fish Conditions Stage Phenotype
rpl13upv3/upv3 standard conditions Day 5 ceratohyal cartilage increased angle to ceratohyal cartilage, abnormal
Day 5 swim bladder uninflated, abnormal
Day 5 whole organism life span, normal
Day 5 whole organism viability, normal
Days 7-13 ceratohyal cartilage decreased distance Meckel's cartilage, abnormal
Days 7-13 embryonic cranial skeleton morphogenesis process quality, abnormal
Days 7-13 swim bladder uninflated, abnormal
Days 7-13 whole organism life span, normal
Days 7-13 whole organism viability, normal
Days 30-44 ceratohyal cartilage decreased distance Meckel's cartilage, abnormal
Days 30-44 embryonic cranial skeleton morphogenesis process quality, abnormal
Days 30-44 Meckel's cartilage decreased width, abnormal
Days 30-44 swim bladder inflated, normal
Days 30-44 whole organism decreased length, abnormal
Days 30-44 whole organism life span, normal
Days 30-44 whole organism viability, normal
Acknowledgments:
This image is the copyrighted work of the attributed author or publisher, and ZFIN has permission only to display this image to its users. Additional permissions should be obtained from the applicable author or publisher of the image. Full text @ J. Bone Miner. Res.