四川玉米小斑病菌交配型组成与育性分析
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孙小芳,刘敏,潘婷敏,龚国淑
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Mating Type and Fertility of Cochliobolus heterostrophus Causing Southern Corn Leaf Blight in Sichuan Province
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SUN XiaoFang,LIU Min,PAN TingMin,GONG GuoShu
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表4 四川省17个市（州）及云南省西双版纳州玉米小斑病菌有性世代形成情况
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Table 4 Fertility of C. heterostrophus isolates collected from 17 cities (prefectures) of Sichuan and Xishuangbanna of Yunnan provinces
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采样区
Sampling region | 测试菌
株数
Number of tested isolates | 不同假囊壳形成能力的菌株数（出现频率）
Number of isolates with different pseudothecium-forming levels (Frequency, %) | 可育菌株数
（出现频率）Number of fertile isolates (Frequency, %) | 不同育性水平的菌株数（出现频率）
Number of isolates with different fertility levels (Frequency, %) | 高
High | 中
Medium | 低
Low | 无
Absent | 高
High | 中
Medium | 低
Low | 不育
Sterile | 四川中部
Central Sichuan | 成都Chengdu | 161 | 33 (20.50) | 59 (36.65) | 65 (40.37) | 4 (2.48) | 145 (90.06) | 21 (13.04) | 56 (34.78) | 68 (42.24) | 16 (9.94) | | 眉山Meishan | 66 | 11 (16.67) | 20 (30.30) | 29 (43.94) | 6 (9.09) | 59 (89.39) | 6 (9.09) | 19 (28.79) | 34 (51.52) | 7 (10.61) | | 总计Total | 227 | 44 (19.38) | 79 (34.80) | 94 (41.41) | 10 (4.41) | 204 (89.87) | 27 (11.89) | 75 (33.04) | 102 (44.93) | 23 (10.13) | | 四川东部 Eastern Sichuan | 内江Neijiang | 11 | 0 (0) | 4 (36.36) | 7 (63.63) | 0 (0) | 11 (100.00) | 0 (0) | 4 (36.36) | 7 (63.63) | 0 (0) | | 遂宁Suining | 11 | 0 (0) | 3 (27.27) | 8 (72.73) | 0 (0) | 8 (72.73) | 0 (0) | 3 (27.27) | 5 (45.45) | 3 (27.27) | | 南充Nanchong | 16 | 4 (25.00) | 3 (18.75) | 8 (50.00) | 1 (6.25) | 13 (81.25) | 3 (18.75) | 3 (18.75) | 7 (43.75) | 3 (18.75) | | 广安Guang’an | 12 | 2 (16.67) | 2 (16.67) | 6 (50.00) | 2 (16.67) | 9 (75.00) | 1 (8.33) | 3 (25.00) | 5 (41.67) | 3 (25.00) | | 巴中Bazhong | 3 | 0 (0) | 1 (33.30) | 1 (33.30) | 1 (33.30) | 2 (66.67) | 0 (0) | 1 (33.33) | 1 (33.33) | 1 (33.33) | | 达州Dazhou | 5 | 0 (0) | 1 (20.00) | 2 (40.00) | 2 (40.00) | 3 (60.00) | 0 (0) | 1 (20.00) | 2 (40.00) | 2 (40.00) | | 总计Total | 58 | 6 (10.34) | 14 (24.14) | 32 (55.17) | 6 (10.34) | 46 (79.31) | 4 (6.90) | 15 (25.86) | 27 (46.55) | 12 (20.69) | | 四川西部Western Sichuan | 雅安Yaan | 11 | 4 (36.36) | 4 (36.36) | 2 (18.18) | 1 (9.09) | 9 (81.82) | 2 (18.18) | 2 (18.18) | 5 (45.45) | 2 (18.18) | | 甘孜州Garze | 2 | 0 (0) | 0 (0) | 0 (0) | 2 (100.00) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 2 (100.00) | | 总计Total | 13 | 4 (30.77) | 4 (30.77) | 2 (15.38) | 3 (23.08) | 9 (69.23) | 2 (15.38) | 2 (15.38) | 5 (38.46) | 4 (30.77) | | 四川南部Southern Sichuan | 自贡Zigong | 5 | 0 (0) | 5 (100.00) | 0 (0) | 0 (0) | 5 (100.00) | 0 (0) | 0 (0) | 5 (100.00) | 0 (0) | | 乐山Leshan | 40 | 8 (20.00) | 9 (22.5) | 23 (57.50) | 0 (0.00) | 35 (87.50) | 4 (10.00) | 5 (12.50) | 26 (65.00) | 5 (12.50) | | 宜宾Yibin | 7 | 2 (28.57) | 1 (14.29) | 2 (28.57) | 2 (28.57) | 5 (71.43) | 0 (0) | 0 (0) | 5 (71.43) | 2 (28.57) | | 泸州Luzhou | 14 | 0 (0) | 4 (28.57) | 7 (50.00) | 3 (21.43) | 10 (71.43) | 0 (0) | 4 (28.57) | 6 (42.86) | 4 (28.57) | | 总计Total | 66 | 10 (15.15) | 19 (28.79) | 32 (48.48) | 5 (7.58) | 55 (83.33) | 4 (6.06) | 9 (13.64) | 42 (63.64) | 11 (16.67) | | 四川北部 Northern Sichuan | 德阳Deyang | 84 | 15 (17.86) | 35 (41.67) | 32 (38.10) | 2 (2.38) | 80 (95.24) | 9 (10.71) | 26 (30.95) | 45 (53.57) | 4 (4.76) | | 绵阳Mianyang | 56 | 11 (19.64) | 17 (30.36) | 23 (41.07) | 5 (8.93) | 51 (91.07) | 9 (16.07) | 12 (21.43) | 30 (53.57) | 5 (8.93) | | 广元Guangyuan | 23 | 5 (21.74) | 5 (21.74) | 11 (47.83) | 2 (8.70) | 21 (91.30) | 2 (8.70) | 5 (21.74) | 14 (60.87) | 2 (8.70) | | 总计Total | 163 | 31 (19.02) | 57 (34.97) | 66 (40.49) | 9 (5.52) | 152 (93.25) | 20 (12.27) | 43 (26.38) | 89 (54.60) | 11 (6.75) | | 云南南部 Southern Yunnan | 西双版纳州Xishuangbanna | 17 | 10 (58.82) | 5 (29.41) | 2 (11.76) | 0 (0) | 17 (100.00) | 10 (58.82) | 5 (29.41) | 2 (11.76) | 0 (0) |
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