DIPTERA (Continued) 



Species 



D. repleta 



Type J 



DrosQ-phila miranda 



D. pseudoobscura 



Chromosome Number 



2n n Remarks 



12s, o 

 12o,om 

 12 



9s, om 

 lOo 



9s, on 



9om 

 lOom 



9s 



10s, on 

 lOo , on 



Observer 



References 



X-YO 



6 in 



salivary 



6 in 

 salivary 



Metz 'H+, 

 •l6a,l> 



Frolowa '38 



Kikkawa '35, 

 Kikkawa & 



Peng '38 



2 V's+6 R's+2 S's (o_) 



4o\l) XjXg-Y?; Dobzhansky 



4,5£(11) X^-X^X^. '35?-, b 



Complex of o Dobzhansky & 



similar to Tan '36 



that of 



pseudoobscura p. 



4o(l) 



5^(D 



,-Yo\ 



XO^-Yo". 2 

 strains with 

 Y of differ- 

 ent size. 

 "Univalents 

 appear in 

 Fl of 2 strs. 

 6 in sali- 

 vary. 



X;iX 2 -Yo\ 

 Early death 

 of o of ?i 

 between 

 pseudoobscura 



XX-Yo: Be- 

 havior of 

 XX-Y in 



meiosis. 



X-YcT. 2 

 strains with 

 Y of differ- 

 ent sizes. 7 

 types of Y 

 distinguish- 

 able in its 

 size. Meiosi? 

 i rre^ular in 

 F]_ between 

 diff. strains. 



Koller '39 



Kauf mann ' MO 



Cooper 'i-'6 



J.2.Z. 17, 

 A.N. 50. 



21: 



Biol. Zhurn.(Mos- 

 kaw)7. 



P. I. A. (Tokyo) 11; 

 Jap. J.Z. 7. 



A.U. 69; Genet. 



20. 



A.U. 70. 



J.G-. 38. 



J.M. 66. 



Jenet. 31. 



Dobzhansky & 



Boche '33 

 Dobzhansky '3^ 



l 35.'36, , 37, , 39 

 Dobzhansky & 

 Tan '36 



B.Z. 5^- 



Z.Z.M.A. 21 

 G-enet. 20 

 J.S.Z. 7^ 

 Gene. 22; 



a jr. 70. 



zh. 



-210- 



