The third-chromosome group of mutant characters of Drosophila melanogaster

Abstract

Modification Pink as the First Base of the Third-Chromosome The Locus of Pink Allelomoi-phs of Pink Evahiation of Pink Lethal-iiia (with Cm and Opposite Beaded) Ebony (e) Origin of Ebony Chromosome of Ebony Linkage of Pink and Ebony Allelomorphs of Ebony Locus of Ebony Evaluation of Ebony Maroon (ma) Origin of Maroon Relation of Maroon to Puiple Description of Maroon 54 Relation of Maroon to Pink -Non-Modification Chromosome of Maroon Early Tests of the Locus of Maroon by Ebony and Band Linkage of Maroon to Dicha?te and Hairless in Heterozygous Cm Linkage Relations of Dicha?te Maroon and Dwarf in Homozygous Cm.. 58 Linkage of Maroon to Dicha?te and Hairless in the absence of Cm Reappearance of Maroon 60 Order of the Loci Pink and Maroon, as shown by Parallel Back-Crosses.61 Synthesis of Scarlet Deformed Pink Maroon Stock 63 Evaluation of Maroon 64 Lethal-mb-Lethal with Pink 64 White-Ocelli (wo) 66 Origin and Description of White-Ocelli 66 White-Ocelli in the Black Stock 66 White-Ocelli in the Spineless Stock 67 Chromosome of White-Ocelli 67 Locus of White-Ocelli of the Spineless Stock 67 The Linkage of White-Ocelli to Dichaete and Hairless 67 The Low Coincidence of the Hairless Rough Region The Persistence of White-Ocelli in the Black Stock 70 The Identity of Locus of W^hite-Ocelli of Black and of Spineless Stocks. .71 The Modification of Eosin Eye-color by White-Ocelli 71 Evaluation of White-Ocelli Kidney (k) 72 Origin of Kidney 72 Chromosome of Kidney Pink Kidney Male Back-cross Test -No Crossing-Over in Male 73 Further Pink Kidnej' Recombination Data 74 Variation in Crossing-Over with Age 75 Linkage of Kidney, with Spineless and Sooty Dealing with an Overlapping Character 76 CONTENTS V II.General Account of Mutants -Continued.page Kidney -Continued.Locus of Kidney ''^ Description of the Kidney Character '^^ Evaluation of Kidney ~8 Band (bn) Origin of Band Inheritance of Band Chromosome of Band Locus of Band Description of Band Pink Band X Hairless ; Sooty X Hairless SI Evaluation of Band Peach (pp) Origin of Peach Chromosome of Peach Allelomorphism of Peach and Pink Description of Peach Locus of Peach Evaluation of Peach Truncate-Intensifier-iii Sepia (se) Origin and Inheritance of Sepia Description of Sepia Chromosome of Sepia Linkage of Sepia to Peach and Ebonj^ Locus of Sepia Reappearance of Sepia Second Reappearance of Sepia Evaluation of Sepia Cm Cm in Ebony Cm in Spread Cm Opposite Beaded Cm in Eosin Cm in Maroon Dwarf Crossing-Over in Heterozvgous Cm The Locus of Cm Homozygous Cm Use of Cm liiia in balancing Stocks Rough (ro) Deformed (Df) -^-Deformed X Dichste Hairy X Dichsete Deformed ^.Dichsete Deformed X Scarlet Dichsete Pink X Scarlet Deformed Dichffite Deformed X Pink Scarlet Deformed Pink X Spineless Dichajte Deformed Pink X Scarlet Scarlet Deformed Pink X Maroon, F^ Evaluation of Deformed White-Head Sooty (e^) Origin of Sooty Description of Sooty Chromosome and Locus of Sooty Evaluation of Sootv Dwarf (dw) Origin of Dwarf Maroon bv Remutation Female-Sterility of Dwarf Chromosome of Dwarf -Maroon Dwarf Crossing-Over The Use of Dichsete and Hairless in Locating Dwarf IV CONTENTS II.General Account of Mutants-Continued.page Beaded -Continued.The BalancinR I.ethal-Lethal-ina 43 Parallel between Beaded Stock and CEnothora 43 lOnfurced Heterozygosis 44 Spurious Mutations 44 Pink (p) 4^^ Origin of Pink 44 Description of Pink 44 Inheritance of Pink 45 Chromosome of Pink 45 Relation of Pink to White 45 Relation of Pink to Vermilion 45 Viability of Pink-Linked Lethals 46 Dilution Effects and Dominance Relations 47 Pink Non-Modification 43 Pink as the First Base of the Third-Chromosome 48 The Locus of Pink 49 Allclomoi-phs of Pink 49 Evahiation of Pink 50 Lethal-iiia (with Cm and Opposite Beaded) Ebony (e) Origin of Ebony 50 Chromosome of Ebony Linkage of Pink and Ebony Allelomorphs of Ebony Locus of Ebony Evaluation of Ebony Maroon (ma) Origin of Maroon Relation of Maroon to Piuple Description of Maroon Relation of Maroon to Pink -Non-Modification Chromosome of Maroon Early Tests of the Locus of Maroon by Ebony and Band Linkage of Maroon to Dichaete and Hairless in Heterozj'gous Cm Linkage Relations of Dichsete Maroon and Dwarf in Homozygous Cm.. Linkage of Maroon to Dichaete and Hairless in the absence of Cm Reappearance of Maroon Order of the Loci Pink and Maroon, as shown by Parallel Back-Crosses.Synthesis of Scarlet Deformed Pink Maroon Stock Evaluation of Maroon Lethal-iiib-Lethal with Pink White-Ocelli (wo) Origin and Description of W'hite-Ocelli White-Ocelli in the Black Stock White-Ocelli in the Spineless Stock Chromosome of White-Ocelli 67 Locus of White-Ocelli of the Spineless Stock The Linkage of White-Ocelli to Dichsete and Hairless The Low Coincidence of the Hairless Rough Region The Persistence of White-OcelH in the Black Stock 11, (;<ri«riil Aicoiinl of M\\ii\utif-(.'otiliriui'(l.I'AfiK I'.xl.liilr.l( I )' ) I'l'' Lrilml-mf .1«7 V'lillrx-lli (vi.iiK .. 1'"* OlIKItl iif Vdltcx,.K^H V».rl«-x / Htiir Dicln il.!''-« 'Ilic I,«irii« «»f Vor(cx-lli "''*^ An liilMinilltr (if tlin l)niiiirmiicr< of Vorti-x-IM "^^ V'liitfx-iii iiol.II (!n»wtinK-ov«T Hiii>|irc«i«ir J*^'' CImI.ih.I '.H'" <)|ti;ill Ittld |)l'NC|-i|ili«lll of (l|lll>"i<l "'" ('ImIiiikI / Hlar Dii'lnntc '70 Dirluil.-riiiMMo.lilin (from Line l(K)'2.A, Jl.H.) '7" II.General Account of Mutants -Continued.p.\nE CniM (CTO:<s-ovor Variation from Minute Experiment) Origin of Ciiim Sepia Sooty Rough Minute X Ciiim, Back-cross Sepia Sooty Rough X Cuim, Bark-cross Ciiim X Sepia Spineless Sooty Rough.Back-cross Ciiim X Sepia Spineless Sooty Rough Back-cross Sepia Ciiim Rough X Spineless Summary of Recombination Data for Heterozygous Cium Comparison of Ciiim with Cm2 J Bithorax-b (bx-b) Origin and Description of Bithorax-b Bithorax-b Sooty Rough X Hairless Bithorax-b X Bithorax '-2G Parallel Back-crosses : bx-b X H, ss X H 22G Evaluation of Bithorax-b Roof-c D^va^f-b (dw-b) Origin of Dwarf-b D\varf-b X Dwarf Dwarf-b X Hairless Dwarf-b X Dichaete Hairless Weight Curve of Dwarf-b Flies Evaluation of Dwarf-b Minutc-diii (Mdm) Origin and Description of Minute-d Minute-d X Star Hairless, Male Back-cross Minute X Star Hairless, Female Back-cross Star Hairless Minute-d X Wild, Back-cross Star Minute-du X Black Purple Curved, Back-cross Hairless Minute-dm X Sepia, Back-cross.Rough' Delta-b 235 Original and Description of Delta-b 235 Delta-b a Dominant in Chromosome-HI 235 Dark (dk) 235 Minute-f (Mf) 236 Minute-g(Mg)Hairless Minute-g X Claret, Female Back-cross 237 Varnished (vr)

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