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Evaluation of diversity and resistance of maize varieties to Fusarium spp. causing ear rot in maize under conditions of natural infection

Author

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  • Yong Gang Li

    (Key Laboratory of Cold Crop Breeding Improvement and Physiological Ecology in Heilongjiang Province, Agricultural College, Northeast Agricultural University, P.R. China
    Department of Plant Pathology, University of Georgia, Tifton, USA)

  • Dan Jiang

    (Key Laboratory of Cold Crop Breeding Improvement and Physiological Ecology in Heilongjiang Province, Agricultural College, Northeast Agricultural University, P.R. China)

  • Lan Kun Xu

    (Key Laboratory of Cold Crop Breeding Improvement and Physiological Ecology in Heilongjiang Province, Agricultural College, Northeast Agricultural University, P.R. China)

  • Si Qi Zhang

    (Key Laboratory of Cold Crop Breeding Improvement and Physiological Ecology in Heilongjiang Province, Agricultural College, Northeast Agricultural University, P.R. China)

  • Ping Sheng Ji

    (Department of Plant Pathology, University of Georgia, Tifton, USA)

  • Hong Yu Pan

    (College of Plant Sciences, Jilin University, Changchun, P.R. China)

  • Bai Wen Jiang

    (Resources and Environment College, Northeast Agricultural University, Harbin, P.R. China)

  • Zhong Bao Shen

    (Grass and Science Institute of Heilongjiang Academy of Agricultural Sciences, Harbin, P.R. China)

Abstract

Fusarium ear rot in maize (Zea mays L.) is a serious disease in all maize-growing areas worldwide. A total of 454 fungal strains were isolated from 69 commercial maize hybrids grown in Harbin, China, and comprised Fusarium subglutinans (34.8%), F. proliferatum (31.3%), F. verticillioides (20%), F. graminearum (9.7%), and F. equiseti (4.2%). Among them, a complex of multiple species, F. subglutinans, F. proliferatum, and F. verticillioides are the dominant fungi causing ear rot. Among 59 commercial maize hybrids, eleven hybrids (18.6%) were found to be highly resistant to Fusarium ear rot. Simple sequence repeat (SSR) analysis using six pairs of primers resulted in 24 reproducible bands and cluster analysis separated the maize hybrids into eight groups. There was little genetic variation associated with disease resistance. No correlation was found between genetic diversity and disease resistance.

Suggested Citation

  • Yong Gang Li & Dan Jiang & Lan Kun Xu & Si Qi Zhang & Ping Sheng Ji & Hong Yu Pan & Bai Wen Jiang & Zhong Bao Shen, 2019. "Evaluation of diversity and resistance of maize varieties to Fusarium spp. causing ear rot in maize under conditions of natural infection," Czech Journal of Genetics and Plant Breeding, Czech Academy of Agricultural Sciences, vol. 55(4), pages 131-137.
    • Handle: RePEc:caa:jnlcjg:v:55:y:2019:i:4:id:81-2018-cjgpb
    DOI: 10.17221/81/2018-CJGPB
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    Cited by:

    1. Manfred Schönleben & Joachim Mentschel & Luboš Střelec, 2020. "Potentials to breed for improved fibre digestibility in temperate Czech maize (Zea mays L.) germplasm," Czech Journal of Genetics and Plant Breeding, Czech Academy of Agricultural Sciences, vol. 56(4), pages 133-139.

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