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

Author:
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; Habibuddin Hashim
Source:
Czech journal of genetics and plant breeding 2022 v.58 no. pp. 29-35
ISSN:
1212-1975
Subject:
Magnaporthe oryzae; agronomic traits; backcrossing; blast disease; cluster analysis; disease resistance; early development; fungi; genes; microsatellite repeats; pathotypes; rice; 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. Cross ...
DOI:
10.17221/55/2021-cjgpb

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

Author:
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; Habibuddin Hashim
Source:
Czech journal of genetics and plant breeding 2022 v.58 no.1 pp. 29-35
ISSN:
1212-1975
Subject:
Magnaporthe oryzae; agronomic traits; backcrossing; blast disease; cluster analysis; disease resistance; early development; fungi; genes; microsatellite repeats; pathotypes; rice; 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 IRTP ...
DOI:
10.17221/55/2021-CJGPB

3. Molecular confirmation of candidate Hsp70 gene associated with heat tolerance in BC₃F₂ advanced backcross lines and their phenotypic resemblance with recurrent chilli Kulai

Author:
Magaji G. Usman; Mohd Y. Rafii; Oladosu Yusuff; Mohammad Y. Martini; Mohd R. Ismail; Raihana Ridzuan
Source:
Acta agriculturæ Scandinavica 2020 v.70 no.3 pp. 252-264
ISSN:
1651-1913
Subject:
agronomic traits; backcrossing; flowering; fruit yield; fruits; genes; genotype; heat tolerance; microsatellite repeats; parents; phenotype; plant height; temperature; Malaysia
Abstract:
... Domestic production of chilli in Malaysia is insufficient which accounted for 52% self-sufficiency level. Poor performance of local varieties under high temperatures above 42°C is one of the major factors affecting chilli production. This study was conducted with the objective of introgress heat-tolerant gene (Hsps) from AVPP0702 donor into Kulai using marker-assisted backcrossing. A total of 68 S ...
DOI:
10.1080/09064710.2019.1692899

4. Identification and Validation of Quantitative Trait Loci for Agronomic Traits in Advanced Backcross Breeding Lines Derived from Oryza rufipogon × Oryza sativa Cultivar MR219

Author:
Ratnam Wickneswari; M. A. R. Bhuiyan; Sabu Kalluvettankuzhy K.; Li Sze Lim; Michael J. Thomson; Md. Kairudin Narimah; Md. Zain Abdullah
Source:
Plant molecular biology reporter 2012 v.30 no.4 pp. 929-939
ISSN:
0735-9640
Subject:
Oryza rufipogon; Oryza sativa; agronomic traits; alleles; backcrossing; breeding lines; breeding value; chromosome mapping; cultivars; field experimentation; microsatellite repeats; plant morphology; quantitative trait loci; rice; yield components; Malaysia
Abstract:
... A backcross breeding strategy was used to identify quantitative trait loci (QTLs) associated with 14 traits in a BC2F2 population derived from a cross between MR219, an indica rice cultivar and an accession of Oryza rufipogon (IRGC 105491). A total of 261 lines were genotyped with 96 microsatellite markers and evaluated for plant morphology, yield components and growth period. The genetic linkage ...
DOI:
10.1007/s11105-011-0404-4