144 



CHAPTER 10 



+ trosl 

 I 

 *mt-2 



ieu-3 

 leu-4 

 moling 



II 



m 



jx 



YI 



chol-2 



YH 



-cauliflower 



pyr4 



ad 5 



type 



cyt-l- 

 suc- 



9" 

 liny 



row- IT;^ 



""LIS 



crisp 

 visible ■*■ 



-slow 

 ■thil 



■ me-6 

 nit-l 



lhre-2 



lboltoon iCumb i-lh.4 pd^ipy^o }"'»* 



■ ■ arg-5 

 arom-3 



orom-4- 



peach 

 arom-l 



proH 

 me-8-" 



inrp*i: 



cysi ■■ 



pyr-3 



}org-2 

 ■leu 



compact , .-ad-6 



P Qrv ':: coil 



■ ad-4 

 ltu-1 



hi st -7 

 ad-2 

 thi-2 



pyr-2-- 



lys-2- 



--IV-I 



-iv-2 



-- hist-4 

 - me-5 



al-2 + 

 hs ■■ 



■arg-6 



lal-l(our) 



lryp-3+ 



► 1lu11y 



|y*3 : 



histl- 

 arg-8- 

 pab-i ■ ■ 



biscuit '■'■ 



can 

 nic-l 



-velvet 

 ■ tyrl 



IO map units 



pab-2-- 



.-ad 8 



•cyt-2 



lys-5 (asco) 

 •j-cys-2 



pan-2- 



lb-1 



--tryp-2 



-spray 

 --am 

 — org 4, org 7 



inos 



bullon- 



me-9- 



tor- 



arg-lO" 



|-mc3 



i-sto 

 lhi-3 



-me-7 

 -thfl 



argil 



nl 



• skin 



.. ad -7 



figure 10-10. The 

 linkage groups of 



Ncurospora crassa. 

 / he relative \i:e\ and 

 centromere positions 

 ( open circles) of the 

 chromosomes are shown 

 at the lower right. 

 I he chromosomes and 

 linkage groups are 

 numbered independ- 

 ently. Map distances 

 are only approximate. 

 ( Courtesy of Black well 

 Scientific Publications, 

 Oxford, from 

 Fungal Genetics 

 by J. R. S. Fincham 

 and P. R. Day, 1963.) 



asp 

 plug 



ii i AAA 



I 2 3 4 5 6 7 



Key to Genetic Symbols 

 Most descriptions refer to nutritional requirements of the corresponding mutants. 



Symbol Name 



a/ A mating type 



ac acetate 



ad adenine 



al albino (white conidia) 



am Q-amino nitrogen (de- 

 ficient in glutamic 

 dehydrogenase) 



amyc amycelial (an ex- 

 treme morpholog- 

 ical variant) 



arg arginine 



arom aromatic (tyrosine -f 

 phenylalanine + 

 tryptophan + p- 

 aminobenzoic acid ) 



asp asparagine 



aur aurescent (probably 

 an allele of al-l ) 



can canavanine resistance 



chol choline 



col colonial morphology 



cys cysteine 



