Front matter
Reading edition
Transcriber's note: A few typographical errors have been corrected. They appear in the text like this, and the explanation will appear when the mouse pointer is moved over the marked passage.
SEX-LINKED INHERITANCE IN DROSOPHILA
BY
T. H. MORGAN and C. B. BRIDGES
WASHINGTON Published by the Carnegie Institution of Washington 1916
CARNEGIE INSTITUTION OF WASHINGTON Publication No. 237.
PRESS OF GIBSON BROTHERS, INC. WASHINGTON, D. C.
CONTENTS.
PAGE.
Part I. Introductory 5
Mendel's law of segregation 5
Linkage and chromosomes 5
Crossing-over 7
The Y chromosome and non-disjunction 8
Mutation in Drosophila ampelophila 10
Multiple allelomorphs 11
Sex-linked lethals and the sex ratio 14
Influence of the environment on the realization of two sex-linked characters 16
Sexual polymorphism 17
Fertility and sterility in the mutants 18
Balanced inviability 19
How the factors are located in the chromosomes 20
The sex-linked factors of Drosophila 21
Map of chromosome X 22
Nomenclature 24
Part II. New data 25
White 25
Rudimentary 25
Miniature 26
Vermilion 27
Yellow 27
Abnormal abdomen 27
Eosin 28
Bifid 28
Linkage of bifid with yellow, with white, and with vermilion 29
Linkage of cherry, bifid, and vermilion 30
Reduplicated legs 31
Lethal 1 31
Lethal 1a 32
Spot 33
Sable 34
Linkage of yellow and sable 35
Linkage of cherry and sable 37
Linkage of eosin, vermilion, and sable 37
Linkage of miniature and sable 40
Linkage of vermilion, sable, and bar 40
Dot 44
Linkage of vermilion and dot 44
Bow 46
Bow by arc 47
Lemon body-color 48
Linkage of cherry, lemon, and vermilion 48
Lethal 2 49
Cherry 51
A system of quadruple allelomorphs 51
Linkage of cherry and vermilion 51
Compounds of cherry 52
Fused 53
Linkage of eosin and fused 54
Linkage of vermilion, bar, and fused 56
Forked 58
Linkage of vermilion and forked 59
Linkage of cherry and forked 59
Linkage of forked, bar, and fused 60
Linkage of sable, rudimentary, and forked 61
Linkage of rudimentary, forked, and bar 62
Shifted 63
Linkage of shifted and vermilion 63
Linkage of shifted, vermilion, and bar 64
Lethals sa and sb 64
Bar 66
Notch 66
Depressed 67
Linkage of depressed and bar 67
Linkage of cherry, depressed, and vermilion 68
Club 69
Genotypic club 70
Linkage of club and vermilion 70
Linkage of yellow, club, and vermilion 70
Linkage of cherry, club, and vermilion 72
Green 73
Chrome 74
Lethal 3 74
Lethal 3a 75
Lethal 1b 76
Facet 76
Linkage of facet, vermilion, and sable 77
Linkage of eosin, facet, and vermilion 78
Lethal sc 79
Lethal sd 79
Furrowed 80
Additional data for yellow, white, vermilion, and miniature 80
New data contributed by A. H. Sturtevant and H. J. Muller 82
Summary of the previously determined cross-over values 83
Summary of all data upon linkage of gens in chromosome I. 84
Bibliography. 86