5. New genes in chromosome 9.

A) Pr2 and su3 have already been mentioned.

B) Defective kernel

Da1 De Da1 de da1 De da1 de
168 13 (13 (54

C) Pale green seedling and plant

Sh Pg Sh pg sh Pg sh pg

127

42

33*

17*

194

72

46*

21*

34

14

9*

2*

96

43

40*

18*

*Deficiencies due to poor germination of sh kernels.


Wx Pg Wx pg wx Pg wx pg

163

82

87

3**

96

40

41

22*

112

68

101

1**

*  coupling
** repulsion


C Pg C pg c Pg c pg
92 38 44 23

D) Duplicate genes for zigzag culm showing linkage with genes in chromosome 9.

Ms2 Zg Ms2 zg ms2 Zg ms2 zg
210 10 97 16
224 9 66 15

E) New chlorophyll pattern

Wx St* Wx st wx St wx st
237 8 31 59

*Ed. Note: St has been used for sticky chromosomes. Some other symbol is necessary.

F) Lethal male gametophyte (Gm2?)*

Sh wx x Sh wx Gm  
sh wx sh Wx gm   Wx Sh Wx sh wx Sh wx sh
    250 195 1895 200

*Ed. Note: Gm is used for germless seed. Another symbol is necessary.

sh --- 17 92 --- Wx --- 17.52 --- gm.

G) A second male gametophytic lethal is alnost completely linked with the Wx wx gene pair. Call this gm3?