Maize Genetics Cooperation Newsletter vol 85 2011

BeijingChina

Institute of Genetics CAS                    Hua-Tai Use for Specific Corn R.

                                         D. Center

Zeng M                                     Zeng Z

Application of Maize Mutation Types Induced by Space Environment

to Plant Genetic and Breeding

 

In authors previous paper it is has been described that the space environment has significant the effects on maize hereditary variation and had obtained the different mutation types (MNL 2005, 79:3, 2006, 80:2; 2007, 81:2). This paper deals with the application of three mutation types to the plant genetic and breeding which are based on the precision scheme of heterotic breeding of the space inducement.7 mutants belong in three mutation types, i. e. the plant height, ear length and grain types etc, mutation types ,are used as main experimental materials.19 new lines are developed, and 6 pairs of the superior genetic materials are developed and screened with use for researching the machinery and regularity of space inducement. Among them 11 elite lines (See Table 1-2, Fig. 1) containing the 25%-50% blood relative of space inducement are applicated to combined 7 superior hybrids, they have already adopted the regional and yield potential trail for national or province (city, autonomous region) tests and (or) obtained the examination and approval of crop varieties examine and approve committee, to award certificates of new variety right, respectively. The accumulate total for spread areas per year had reached the more 0.8 million Mu (0.053 million ha.). In below papers, ought to discussion the problems of rise combing ability, biochemical component quality for space induced lines and hybrids and construction of the breeding engineering system for space inducement. The prospective on research progress for flight aerospace engineering breeding also ought to mention.

 

 

 

 

 

 

 

 

 

Table 1.The characters and properties for space Environment induced maize mutant

               Name

        Original No.

Item

Mut2

Mut5

Mut6

Mut7

Mut8

Mut9

Mut12

Yi01-4-1

Sp2-3

U8112

Sp3-4

U8112

Sp3-2

U8112

Sp3-3

Me141

SP3-1

Me141

Sp3-2

Zi24

Sp4-5

Plant height (cm)

182.0

157.0

214.0

189.0

220.1

227.3

190.5

Ear height (cm)

75.1

50.1

93.0

82.5

97.2

100.1

88.7

Length of the leaf at the ear site (cm)

75.6

71.3

74.5

70.1

85.1

87.1

74.0

Width of the leaf at the ear site (cm)

9.1

10.0

9.4

9.5

10.0

10.1

10.0

Tassel length (cm)

50.0

43.1

46.2

45.1

47.2

52.6

41.0

Tassel branch number

15.0

9.0

15.1

15.2

15.3

14.0

8.5

Leaf number

20

21

21

21

22

22

21

Ear Length (cm)

13.9

14.1

20.2

19.1

17.1

18.5

17.0

Ear diameter (cm)

4.8

4.7

5.0

4.7

5.0

5.2

4.4

Number of kernel row

12

14~16

14

14

16

16

14

Kernel number of each row

33.0

31.0

32.0

33.0

34.2

32.3

35

Weitght of 100 kernel (g)

27.1

22.1

24.8

22.7

24.7

28.5

19.8

Each ear weight

120.1

105.7

143.0

130.0

172.4

174.0

135.2

Kernel weight per ear

99.9

87.2

120.3

107.5

141.8

142.9

116.3

Ear form, kernel type

Spindle SD

Spindle SD.D

Cycle SF.

Cycle F.

Cycle SF.

Cycle SD.SF

Cycle wx

Cob, Kernel color

W.Y.

W.Y.

W.Y.

W.Y.

W.Y.

W.Y.

R.W.

Day from seeding to kernel maturing

55

57

57

57

64

64

58

Length for leaf-blade of husk top(cm)

No

No

No

No

No

No

No

Length of ear handle(cm)

6.0

6.0

6.0

6.3

6.9

6.4

5.0

Ear number per plant

12

1

1

1

12

12

12

Level of leaf-blade erect

Erect

Erect

Erect

Erect

General

General

More erect

Resistance to E.turcicum & B.maydis

HR

HR

HR

HR

HR

HR

R

to P.inflatum,P.aphanidermatum,

F.moniliforme & F.graminearum

to S.holci-sorghi

to P.sorghi & P.polysora

MR

 

HR

HR

HR

 

MR

HR

HR

 

MR

HR

HR

 

MR

HR

HR

 

HR

HR

HR

 

HR

HR

MR

 

HR

HR

 

 

 

 

 

 

 

 

 

 

Table 2.The characters and properties for the maize mutants came from inbred lines

 

Name

Item

Yio1-4-1

Zi:24

U8112

Me141

Plant height (cm)

143.1

191.5

190.0

181.5

Ear height (cm)

41.2

90.2

82.8

81.2

Length of the leaf at the ear site (cm)

67.2

75.2

41.8

88.6

Width of the leaf at the ear site (cm)

7.0

10.1

9.4

9.4

Tassel length (cm)

41.5

42.1

65.4

51.3

Tassel branch number

10.8

10.5

8.9

11.1

Leaf number

20

21

21

22

Ear Length (cm)

11.2

16.7

16.7

12.8

Ear diameter (cm)

3.5

4.2

4.6

5.1

Number of kernel row

12

14

12

18

Kernel number of each row

22

36

28

22

Weitght of 100 kernel (g)

19.1

24.0

21.5

25.0

Each ear weight

61.0

145.7

84.0

123.4

Kernel weight per ear

50.1

124.3

71.0

101.0

Ear form ,kernel type

Cycle.SF

Spindle.SDSF

Cycle.D

Cycle.SD

Cob, Kernel color

W.Y.

R.W.

W.Y.

W.YW

Day from seeding to kernel maturing

57

58

60

69

Length for leaf-blade of husk top(cm)

No

No

No

No

Length of ear handle(cm)

5.0

5.1

6.0

6.3

Ear number per plant

12

12

1

12

Level of leaf-blade erect

Erect

More erect

Erect

General

Resistance to E.turcicum & B.maydis

S

MR

MR

HR

to P.inflatum,P.aphanidermatum,

F.moniliforme & F.graminearum

 

MR

MR

HR

HR

to S.holci-sorghi

HR

HR

MR

HR

to P.sorghi & P.polysora

HR

HR

HR

HR

 

 

 

 

 

 

 

 

 

 

 

Fig.1.Breeding sketch map for 11 of inbred lines by using multiple cross and backcross methods

1.Me12  {[Mo17×Zi330×Y78599]S6 variation plant×Mut5}S5 ×(PHG analogous plant×NRRSPb analogous plant)

F2 pop., Selected, Testcross→S8 (Me12)

2.XH3 [HZGC1S5×(HZGC2 analogous plant×HZPC2 analogous plant)]

S4×(Mut4×NRRSPa analogous plant)

F2 pop., Selected, Testcross→S7(XH3)

3.Met88  [(NRRSPb×Me8)S3×SW5P analogous plant S3]

S3×Mut8

F2 pop., Selected, TestcrossS7(Met88)

4.Mv02 [(Q1621×Y78599)S3×NRRSPa S3]

S3×Mut7

F2 pop., Selected ,TestcrossS7(Mvo2)

5.Me196  [(Ye3189 variation plant×Ye478)S3×NRRSPb analogous plant]

S3×Mut8

F2 pop., Selected TestcrossS8(Me196)

6.Met883 [(NRRSPb×Me8)S3×(SW3× SW3P analogous plant)]

S3×Mut8

F2 pop., Selected, TestcrossS8(Mett883)

7.Me06 {[(Q1621×Y78599)S3×NRRSPa S3]

S3×Mut6

F2 pop., Selected, TestcrossS8 (Me06)

8.Met81 [(NRRSPb×Me81) S3×SW5P analogous plant S3]

S3×Mut9

F2 pop., Selected, TestcrossS7(Met81)

9.Me05 [(Q1621×Y78599)S3×NRRSPa S3]

S3×(Ki45×Mo17 variation plant S3)

S3×Mut5

F2 pop., Selected, TestcrossS8(Me05)

10.Me07 [(Q1621×Y78599)S3×NRRSP a S3]

S3×(Ki21×M017 variation plant S3)

S3×Mut7

F2 pop., Selected, TestcrossS8(Me07)

11.Me887wx  Li502wxF2 pop.S1 variation plant S3

S3×ThaiWwx pop. S3

S3×Mut12wx

F2 pop., Selected, TestcrossS7(Me887wx)

 

 

 

 

Please Note: Notes submitted to the Maize Genetics Cooperation Newsletter may be cited only with consent of authors.