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Disease resistance of improved MR220 lines against Pyricularia oryzae Cavara and their preliminary agronomic performance

Author

Listed:
  • Siti Nor Aziemah Mohamad

    (School of Biological Science, Universiti Sains Malaysia, Penang, Malaysia)

  • Mohamad Bahagia Ab Ghaffar

    (Research Innovation Centre Excellence, Malaysian Agricultural Research and Development Institute (MARDI), Seberang Perai, Kepala Batas, Penang, Malaysia)

  • Ahmad Sofiman Othman

    (School of Biological Science, Universiti Sains Malaysia, Penang, Malaysia)

  • Siti Norsuha Misman

    (Research Innovation Centre Excellence, Malaysian Agricultural Research and Development Institute (MARDI), Seberang Perai, Kepala Batas, Penang, Malaysia)

  • Zuraida Abd Rahman

    (Biotechnology & Nanotechnology Research Centre, MARDI Headquarters, Serdang, Selangor, Malaysia)

  • Mohd Shahril Firdaus Ab Razak

    (Biotechnology & Nanotechnology Research Centre, MARDI Headquarters, Serdang, Selangor, Malaysia)

  • Zulkifli Ahmad Seman

    (Biotechnology & Nanotechnology Research Centre, MARDI Headquarters, Serdang, Selangor, Malaysia)

  • Muhammad Fairuz Mohd Yusof

    (Biotechnology & Nanotechnology Research Centre, MARDI Headquarters, Serdang, Selangor, Malaysia)

  • Khairulmazmi Ahmad

    (Department of Plant Protection, Faculty of Agriculture, Universiti Putra Malaysia, Serdang, Selangor, Malaysia)

  • Siti Norhidaya Yazid

    (Department of Plant Protection, Faculty of Agriculture, Universiti Putra Malaysia, Serdang, Selangor, Malaysia)

  • Habibuddin Hashim

    (Agric Inov Resources, Sg Petani, Kedah, Malaysia)

Abstract

Blast disease caused by Pyricularia oryzae is one of the most destructive fungal diseases of rice in Malaysia. Utilisation of resistant varieties is the most efficient management approach towards reducing yield losses. The line IRTP21683 with the Pi9 gene has shown strong resistance against the isolate MPO988.3 of pathotype P0.0, the most prevalent P. oryzae pathotype in Malaysia. Crossing of IRTP21683 was undertaken with the recurrent parent MR220, a susceptible elite Malaysian rice variety, using a marker assisted backcrossing technique with two simple sequence repeat markers, RM19776 and RM7311, as the tag for the Pi9 gene. Twenty BC3F4 lines with the Pi9 gene were resistant when challenged with MPO 988.3. The cluster analysis based on seven agronomic parameters showed that the resistant BC3F4 lines could be divided into four groups, of which the members in group 1 and 2 have shown comparable or better performance than MR220. Five lines in group 1, B220PI9-3-48, B220PI9-3-76, B220PI9-3-77, B220PI9-3-79 and B220PI9-3-82 showed outstanding yield performance with early maturation.

Suggested Citation

  • Siti Nor Aziemah Mohamad & Mohamad Bahagia Ab Ghaffar & Ahmad Sofiman Othman & Siti Norsuha Misman & Zuraida Abd Rahman & Mohd Shahril Firdaus Ab Razak & Zulkifli Ahmad Seman & Muhammad Fairuz Mohd Yu, 2022. "Disease resistance of improved MR220 lines against Pyricularia oryzae Cavara and their preliminary agronomic performance," Czech Journal of Genetics and Plant Breeding, Czech Academy of Agricultural Sciences, vol. 58(1), pages 29-35.
    • Handle: RePEc:caa:jnlcjg:v:58:y:2022:i:1:id:55-2021-cjgpb
    DOI: 10.17221/55/2021-CJGPB
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