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The influence of the ratio of sex chromosomes to autosomes
in
Melandrium album
and
Drosophila melanogaster
(M. WESTERGAARD, 1953)
Number of Combination
Karyotype
Melandrium
Drosophila
1
2 A + XX
female
female
2
2 A + XXX
female
superfamale
3
3 A + X
?
male / sterile
4.
3 A + XX
female
hermaphrodite
5
3 A + XXX
female
female
6
4 A + XX
female
male
7
4 A + XXX
female
hermaphrodite
8
4 A + XXXX
female
female
9
4 A + XXXXX
female
?
10
2 A + XY
male
male
11
2 A + XYY
male
male
12
2 A + XXY
male
female
13
2 A + XXYY
?
female
14
3 A + XY
male
supermale
15
3 A + XXY
male
hermaphrodite
16
3 A + XXXY
male
female
17
4 A + XY
male
?
18
4 A + XXY
male
?
19
4 A + XXYY
male
?
20
4 A + XXXY
male
?
21
4 A + XXXYY
male
?
22
4 A + XXXXY
hermaphrodite
?
23
4 A + XXXXYY
male
?
© Peter v. Sengbusch -
b-online@botanik.uni-hamburg.de
