Table 1.

Summary of dimensions and division cycles in the syncytial embryo of eight different species

Species References Embryo size (length; width) Nuclei at cortex after (divisions) Domain size calculatedb 
   Calculateda Observed  
  µm   µm 
Sciara coprophilac de Saint Phalle and Sullivan, 1996  200; 110 6.35 30.4 
Bradysia tritici Perondini et al., 1986  250; 130 7.16 29.0 
Mormoniella vitripennis Bull, 1982  370; 140 7.93 27.6 
Drosophila melanogaster Foe and Alberts, 1983; Markow et al., 2009  510; 180 9.12 28.8 
Aedes aegyptid Raminani and Cupp, 1975  620; 160 9.06 28.4 
Dacus tryonie Anderson, 1962  975; 190 10.21 10 29.4 
Musca domestica Sommer and Tautz, 1991  1,000; 260 11.2 11 29.0 
Apis mellifera Fleig and Sander, 1986  1,400; 300 12.05 11 35.7 
Species References Embryo size (length; width) Nuclei at cortex after (divisions) Domain size calculatedb 
   Calculateda Observed  
  µm   µm 
Sciara coprophilac de Saint Phalle and Sullivan, 1996  200; 110 6.35 30.4 
Bradysia tritici Perondini et al., 1986  250; 130 7.16 29.0 
Mormoniella vitripennis Bull, 1982  370; 140 7.93 27.6 
Drosophila melanogaster Foe and Alberts, 1983; Markow et al., 2009  510; 180 9.12 28.8 
Aedes aegyptid Raminani and Cupp, 1975  620; 160 9.06 28.4 
Dacus tryonie Anderson, 1962  975; 190 10.21 10 29.4 
Musca domestica Sommer and Tautz, 1991  1,000; 260 11.2 11 29.0 
Apis mellifera Fleig and Sander, 1986  1,400; 300 12.05 11 35.7 
a

Assuming a domain size of 28 µm, as measured in this study.

b

Assuming the observed number of divisions for nuclei to reach the cortex.

c

Embryo dimensions were measured in the pictures presented in reference.

d

Number of divisions estimated from cycle time and time for arrival of nuclei at the cortex.

e

Number of divisions deduced from time point of appearance of pole buds and formation of pole cells.

or Create an Account

Close Modal
Close Modal