玉米种质资源对拟轮枝镰孢与禾谷镰孢穗腐病的抗性精准鉴定与分析

doi:10.3724/SP.J.1006.2022.13055

Abstract

Abstract:

Ear rot is a severe disease in maize production in China, which often leads to a considerable decline in yield and quality. The development and utilization of resistant cultivars is an economical and effective method for controlling ear rot. Resistant resources are the material basis for resistance breeding. The methods for precise identification of maize germplasm resistance to ear rot were optimized and improved. Correlation analysis between silk channel inoculation and ear injection inoculation (traumatic inoculation) for screening of maize resistance to ear rot was performed and correlation coefficients (r) were not less than 0.90, indicating high correlation between maize ear rot resistance identified by silk channel and ear injection inoculation. The precise evaluation of 690 maize accessions resistance to Fusarium ear rot (FER, caused by Fusarium verticillioides) was conducted with silk channel inoculation at six different environments in Changping of Beijing and Xichang of Sichuan from 2018 to 2020. A total of 35 maize resources with stable FER resistance, such as H446, YCF, Liao 2309, Jizi 1055, Y1723, XF8-3, Tie 97085 and so on, were screened out, accounting for 5.07% of total accessions. Correlation coefficients of maize resistance to FER between any two sites among six different environments varied from 0 to 0.48. The r-values between two sites in 2018, 2019, and 2020 were 0.03, 0.20, and 0.15, respectively. The r-values between pairwise annual comprehensive FER resistance among three years were 0.20, 0.30, and 0.35, indicating that the resistance reaction of 690 accessions to FER exhibited obvious differences among different environments. During 2018-2020, 690 maize resources were precisely identified for resistance to Gibberella ear rot (GER, caused by Fusarium graminearum) with silk channel inoculation at six different environments in Shenyang of Liaoning and Xichang of Sichuan. Correlation coefficients of GER resistance in 690 maize resources between any two sites among six environments ranged from 0 to 0.39. The r-values between two sites in 2018, 2019, and 2020 were 0.05, 0.25, and 0.29, respectively, indicating that the environments had a relatively great influence on GER resistance in maize. The r-values between pairwise annual comprehensive GER resistance among three years were 0.14, 0.20, and 0.13, indicating considerable differences in annual comprehensive resistance. Seventeen inbred lines (H446, MC7528, Y1632, Y1679, Jizi 1055, Tie 97085, and so on) with stable resistance to GER at diverse environments were identified. The r-value of 0.52 between FER and GER resistance in 690 maize germplasm exhibited moderate correlation. The six-point experimental data for FER and GER resistance indicated three maize inbred lines (H446, Jizi 1055, and Tie 97085) expressed stable resistance to both FER and GSR, which were precious resources for breeding ear rot resistant varieties or improvement of cultivar resistance.

Key words: maize germplasm, Fusarium ear rot, Gibberella ear rot, silk channel inoculation, ear injection inoculation, precise characterization

DUAN Can-Xing, CUI Li-Na, XIA Yu-Sheng, DONG Huai-Yu, YANG Zhi-Huan, HU Qing-Yu, SUN Su-Li, LI Xiao, ZHU Zhen-Dong, WANG Xiao-Ming. Precise characterization and analysis of maize germplasm resources for resistance to Fusarium ear rot and Gibberella ear rot[J].Acta Agronomica Sinica, 2022, 48(9): 2155-2167.

Figures/Tables 11

Fig. 1

Table 1

Table 2

Fig. 2

Fig. 3

Fig. 4

Table 3

35 maize germplasm with stable resistance to Fusarium ear rot from precise characterization during 2018-2020"

材料名称 Name	2018		2019		2020		最高抗级 Highest scale	综合抗性 Comprehensive resistance	杂种优势群 Heterotic group
材料名称 Name	北京昌平 Changping, Beijing	四川西昌 Xichang, Sichuan	北京昌平 Changping, Beijing	四川西昌 Xichang, Sichuan	北京昌平 Changping, Beijing	四川西昌 Xichang, Sichuan	最高抗级 Highest scale	综合抗性 Comprehensive resistance	杂种优势群 Heterotic group
MC9292	5.4	5.0	3.0	5.2	4.0	4.8	5.4	中抗MR	唐四平头SPT
陇1447 Long 1447	4.6	3.0	5.0	3.6	4.9	4.9	5.0	中抗MR	—
陇1401 Long 1401	4.9	3.9	5.0	5.2	5.2	4.4	5.2	中抗MR	PB
XF8-3	5.2	2.8	5.0	4.4	4.3	3.7	5.2	中抗MR	PB
陇F0601 Long F0601	4.8	5.2	5.0	3.8	5.0	2.4	5.2	中抗MR	NSS
H446	3.3	1.8	5.0	4.7	4.7	2.8	5.0	中抗MR	Improved Reid
YCF	4.9	4.2	5.0	3.6	4.6	4.5	5.0	中抗MR	—
辽2309 Liao 2309	2.4	4.2	5.0	1.0	3.6	2.5	5.0	中抗MR	PB
辽5114 Liao 5114	4.3	2.4	5.0	3.0	5.0	3.5	5.0	中抗MR	Improved Reid
Y1723	4.3	3.9	5.0	4.1	3.5	5.2	5.2	中抗MR	SS
HRB16055	—	—	5.0	4.8	5.3	4.6	5.3	中抗MR	Improved Reid
辽8160 Liao 8160	—	—	5.0	5.0	3.7	4.5	5.0	中抗MR	Improved Reid
XH-1	—	—	5.0	2.5	5.3	3.9	5.3	中抗MR	Improved Reid
MC5850	4.2	5.0	3.0	5.3	—	—	5.3	中抗MR	Improved Reid
ly325	4.2	1.6	5.0	4.9	—	—	5.0	中抗MR	混合群Mixed
陇1476 Long 1476	4.0	4.7	5.0	5.4	—	—	5.4	中抗MR	Improved Reid
X47B	5.4	4.2	5.0	5.2	—	—	5.4	中抗MR	混合群Mixed
冀资13NB75 Jizi 13NB75	3.2	5.0	5.0	5.0	—	—	5.0	中抗MR	NSS
冀资14L88 Jizi 14L88	4.1	3.3	5.0	5.3	—	—	5.3	中抗MR	NSS
ZM138	4.0	2.6	5.0	4.2	—	—	5.0	中抗MR	Improved Reid
T33336	3.8	1.8	3.0	4.6	—	—	4.6	中抗MR	Improved Reid
HRB16060	3.7	5.1	3.0	5.1	—	—	5.1	中抗MR	混合群Mixed
HRB16073	3.6	4.8	5.0	5.5	—	—	5.5	中抗MR	Lan
HRB16159	5.0	4.5	5.0	5.5	—	—	5.5	中抗MR	Improved Reid
HRB16160	5.2	3.0	5.0	4.4	—	—	5.2	中抗MR	Improved Reid
吉资1046 Jizi 1046	5.0	1.8	5.0	5.0	—	—	5.0	中抗MR	PB
吉资1055 Jizi 1055	4.8	3.1	5.0	3.7	—	—	5.0	中抗MR	混合群Mixed
合344 He 344	3.3	5.2	5.0	4.7	—	—	5.2	中抗MR	Lan
材料名称 Name	2018		2019		2020		最高抗级 Highest scale	综合抗性 Comprehensive resistance	杂种优势群 Heterotic group
材料名称 Name	北京昌平 Changping, Beijing	四川西昌 Xichang, Sichuan	北京昌平 Changping, Beijing	四川西昌 Xichang, Sichuan	北京昌平 Changping, Beijing	四川西昌 Xichang, Sichuan	最高抗级 Highest scale	综合抗性 Comprehensive resistance	杂种优势群 Heterotic group
沈3336 Shen 3336	3.9	5.3	5.0	4.9	—	—	5.3	中抗MR	PB
丹337 Dan 337	1.4	5.1	5.0	1.9	—	—	5.1	中抗MR	PB
铁97085 Tie 97085	4.2	3.6	5.0	3.5	—	—	5.0	中抗MR	混合群Mixed
辽1A407 Liao 1A407	3.8	3.6	5.0	4.3	—	—	5.0	中抗MR	唐四平头SPT
辽3348 Liao 3348	4.6	4.6	5.0	5.3	—	—	5.3	中抗MR	Improved Reid
50014	5.0	2.6	5.0	3.9	—	—	5.0	中抗MR	Improved Reid
50073	5.2	4.4	5.0	4.7	—	—	5.2	中抗MR	混合群Mixed

Table 3

Table 4

Fig. 5

Fig. 6

Fig. 7

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病情分级 Scale	描述 Description
1	发病面积占果穗总面积0-1% 0-1% of the diseased ear surface
3	发病面积占果穗总面积2%-10% 2%-10% of the diseased ear surface
5	发病面积占果穗总面积11%-25% 11%-25% of the diseased ear surface
7	发病面积占果穗总面积26%-50% 26%-50% of the diseased ear surface
9	发病面积占果穗总面积51%-100% 51%-100% of the diseased ear surface

平均发病级别 Ear rot score on average	抗性 Resistance
≤1.5	高抗 Highly resistant (HR)
1.6-3.5	抗 Resistant (R)
3.6-5.5	中抗 Moderately resistant (MR)
5.6-7.5	感 Susceptible (S)
7.6-9.0	高感 Highly susceptible (HS)

Precise characterization and analysis of maize germplasm resources for resistance to Fusarium ear rot and Gibberella ear rot

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材料名称 Name	2018		2019		2020		最高抗级 Highest scale	综合抗性 Comprehensive resistance	杂种优势群 Heterotic group
材料名称 Name	辽宁沈阳 Shenyang, Liaoning	四川西昌 Xichang, Sichuan	辽宁沈阳 Shenyang, Liaoning	四川西昌 Xichang, Sichuan	辽宁沈阳 Shenyang, Liaoning	四川西昌 Xichang, Sichuan	最高抗级 Highest scale	综合抗性 Comprehensive resistance	杂种优势群 Heterotic group
MC7528	5.1	3.9	5.1	1.3	4.4	3.3	5.1	中抗MR	NSS
H446	1.9	3.0	4.9	1.0	3.6	1.4	4.9	中抗MR	Improved Reid
Y1632	4.8	1.4	5.5	1.9	4.1	3.0	5.5	中抗MR	PB
Y1665	2.6	1.8	2.8	1.8	1.5	3.1	3.1	抗R	PB
Y1679	5.2	4.1	5.3	1.0	2.9	2.3	5.3	中抗MR	SS
HRB16101			4.1	3.2	1.6	1.8	4.1	中抗MR	混合群Mixed
M54			4.2	1.5	3.7	3.9	4.2	中抗MR	混合群/NSS Mixed/NSS
ct2273			5.3	2.8	3.3	3.0	5.3	中抗MR	混合群Mixed
MC7495	2.5	3.6	4.7	1.5			4.7	中抗MR	混合群Mixed
DXA048	4.7	4.9	5.5	1.8			5.5	中抗MR	混合群Mixed
吉资1055 Jizi 1055	2.4	1.8	5.0	1.8			5.0	中抗MR	混合群Mixed
四-287 Si-287	5.3	4.0	5.0	2.2			5.3	中抗MR	唐四平头SPT
铁97085 Tie 97085	5.3	1.8	5.3	2.2			5.3	中抗MR	混合群Mixed
16SD135	2.0	2.1	5.5	1.6			5.5	中抗MR	SS
MY08N121	3.1	2.4					3.1	抗R	NSS
D26	2.8	2.7					2.8	抗R	—
Pa91			3.1	1.7			3.1	抗R	混合群Mixed

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