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

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 Yusof, Khairulmazmi Ahmad, Siti Norhidaya Yazid and Habibuddin Hashim
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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

Czech Journal of Genetics and Plant Breeding, 2022, vol. 58, issue 1, 29-35

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.

Keywords: blast disease; marker assisted backcrossing (MAB); Pyricularia oryzae; Pi9 gene; rice (search for similar items in EconPapers)
Date: 2022
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlcjg:v:58:y:2022:i:1:id:55-2021-cjgpb

DOI: 10.17221/55/2021-CJGPB

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