Linkage Groups 



187 



TABLE 4 



A List of Some of the Genes of the Four Linkage Groups of Drosophila 



melanogaster 



Chromosome I (X) 



0.0 yellow B — y 



0. scute H — sc 



0. hairy W—Hw 



1.5 white E * — w 



3.0 facet E— /a 



5.5 ecinus E — ec 



6.9 bifid W—bi 



7.5 ruby E — rb 

 13.7 crossveinless W — cv 

 18.2 carmine E — cm 

 20.0 cut W— c< 

 21.0 singed H — sn 

 ■27. b tan B— < 

 27.7 lozenge E — Iz 



33.0 vermilion E — v 



36.1 miniature W * — m 

 38.7 furrowed E — fw 

 43.0 sable B— s 



44.4 garnet E — g 



50.5 scalloped W — sd 

 56.7 forked H— / 

 57.0 bar E *—B 

 59.5 fused V— /u 

 62.5 carnation E — car 

 66.0 bobbed H— 66 

 Cerdromere 



Chromosome II 

 0.0 aristaless B — al 

 0.1 expanded W — ex 

 1.3 star E—S 

 11.0 echinoid E — ed 

 12.0 gull W— G 

 13.0 dumpy B— dp 

 16.0 streak B—Sk 

 31.0 dachs B— d 

 41.0 jammed W— J 

 44.0 abrupt B—ab 

 48.5 black B *— 6 



48.7 jaunty W — j 

 54.5 purple E * — pr 



54.8 bristle K—Bl 



55.0 light E—U 

 Centromere 



55.1 rolled W—rl 



55.3 thick legs— B— <fc 



55.4 apterous W — ap 



57.5 cinnebar E — en 

 62.0 engrailed B — en 

 67.0 vestigial W * — vg 

 72.0 lobe E— L 



75.5 curved W * — c 

 82.0 fringed W— /; 

 93.3 humpy B—hy 



99.2 arc W— a 

 100.5 plexus W * — px 

 104.5 brown E — bw 

 106.7 lanceolate W— K 

 107.0 speck B *sp 



Chromosome III 

 0.0 roughoid E — ru 

 0.2 veinlet E— re 

 19.2 javelin H — jv 

 20.0 divergent W—dv 

 26.0 sepia E — se 

 26.5 hairy H— A 

 30.0 curvoid W— cur 

 37.0 rotated B— rt 

 41.0 dichaete H— Z) 



41.4 glued E—Gl 

 43.2 thread E—th 

 44.0 scarlet E *—8t 

 Centromere 



47.5 deformed E—Dfd 

 48.0 pink E *—p 

 50.0 curled W— cu 



57.9 crossveinless — W — cv 

 58.2 stubble R—Sb 

 58.5 spineless H * — ss 



58.8 bithorax B— 6a; 



59.9 fluted W— ^ 



62.0 stripe B— sr 



63.1 glass E~gl 



66.2 delta Y—Dl 

 69.5 hairless H—H 

 70.7 ebony B— e 

 75.7 cardinal E — cd 

 79.7 minute WH— Mu) 



91.0 taxi W— <x 



91.1 rough E — ro 

 100.7 claret E—ca 

 106.2 minute-g R—Mg 



Chromosome IV 



Centromere 

 0.1 bent W—bt 

 0.1 shaven H — sv 

 0.2 eyeless E — ey 



Those marked with an asterisk are usually readily available for teaching purposes. Before the name of 

 each gene is the locus at which it is found on its chromosome. After each name is the part of the body chiefly 

 affected and then the symbol of the gene. The parts are: B, body; E, eye; H, hairs or bristles; V, veins of the 

 wings; W, wings. 



the following species, and in each it is seen that the number of 

 linkage groups is the same as the haploid number of chromo- 

 somes: 



