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You searched for: Subject Malaysia Remove constraint Subject: Malaysia Subject backcrossing Remove constraint Subject: backcrossing
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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. Characterization of Sodium Channel Mutations in the Dengue Vector Mosquitoes Aedesaegypti and Aedesalbopictus within the Context of Ongoing Wolbachia Releases in Kuala Lumpur, Malaysia

Author:
Noor Afizah Ahmad; Nancy M. Endersby-Harshman; Nur Ruqqayah Mohd Mazni; Nur Zatil Aqmar Mohd Zabari; Siti Nor Syazwani Amran; Muhammad Kamarul Ridhuan Ghazali; Mohd Arif Abdul Karim; Yoon Ling Cheong; Steven P. Sinkins; Nazni Wasi Ahmad; Ary A. Hoffmann
Source:
Insects 2020 v.11 no.8 pp. -
ISSN:
2075-4450
Subject:
Aedes aegypti; Wolbachia; backcrossing; control methods; deltamethrin; dengue; genes; genetic background; haplotypes; insecticide resistance; males; mutation; permethrin; pyrethrins; sodium channels; Malaysia
Abstract:
... Specific sodium channel gene mutations confer target site resistance to pyrethroid insecticides in mosquitoes and other insects. In Aedes mosquito species, multiple mutations that contribute to resistance vary in their importance around the world. Here, we characterize voltage sensitive sodium channel (Vssc) mutations in populations of Aedesaegypti from Kuala Lumpur, Malaysia, and look at their pe ...
DOI:
10.3390/insects11080529

4. 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

5. Notes on nesting, territoriality and behaviour of broadbills (Eurylaimidae, Calyptomenidae) and pittas (Pittidae) in Tawau Hills Park, Sabah, Malaysian Borneo

Author:
Eric R. Gulson-Castillo; Teresa M. Pegan; Emma I. Greig; Justin M. Hite; Jack P. Hruska; Julian A. Kapoor; Sophia C. Orzechowski; J. Ryan Shipley; David W. Winkler
Source:
Bulletin of the British Ornithologists' Club 2019 v.139 no.1 pp. 8-27
ISSN:
2513-9894
Subject:
Cuculidae; Picidae; Pitta; adults; backcrossing; birds; flocks; habitats; home range; males; natural history; nesting; nests; plumage; social behavior; social class; territoriality; wings; Borneo; Malaysia
Abstract:
... Basic natural history and behavioural data are lacking for the majority of broadbills and pittas (Eurylaimidae, Calyptomenidae and Pittidae). We present a series of observations on these birds made during two visits to Tawau Hills Park, Sabah, Malaysia. During this period, we detected changes in temporal presence, detectability or vocal behaviour in various species. We also found habitat overlap o ...
DOI:
10.25226/bboc.v139i1.2019.a1

6. Rapid and targeted introgression of fgr gene through marker-assisted backcrossing in rice (Oryza sativa L.)

Author:
Acga Cheng; Ismanizan Ismail; Mohamad Osman; Habibuddin Hashim; Nur Samahah Mohd Zainual
Source:
Genome 2017 v.60 no.12 pp. 1045-1050
ISSN:
1480-3321
Subject:
Oryza sativa; backcrossing; cost effectiveness; genes; genetic markers; grain quality; introgression; odors; parents; phenotype; rice; screening; Malaysia
Abstract:
... While it is crucial for developing countries like Malaysia to achieve self-sufficiency in rice (Oryza sativa L.), it is equally critical to be able to produce high-quality rice, specifically fragrant rice, which demands are often met through importation. The present study was aimed at developing high-yielding fragrant rice, in a timely and cost-effective manner. A marker-assisted backcross (MABC) ...
DOI:
10.1139/gen-2017-0100

7. Introgression of blast resistance genes into the elite rice variety MR263 through marker‐assisted backcrossing

Author:
Muhammad M Hasan; Mohd Y Rafii; Mohd Razi Ismail; Maziah Mahmood; Md Amirul Alam; Harun Abdul Rahim; Mohammad A Malek; Mohammad Abdul Latif
Source:
Journal of the science of food and agriculture 2016 v.96 no.4 pp. 1297-1305
ISSN:
0022-5142
Subject:
Magnaporthe oryzae; backcrossing; disease resistance; fungi; genes; introgression; microsatellite repeats; quantitative trait loci; rice; Malaysia
Abstract:
... BACKGROUND: Blast caused by the fungus Magnaporthe oryzae is a significant disease threat to rice across the world and is especially prevalent in Malaysia. An elite, early‐maturing, high‐yielding Malaysian rice variety, MR263, is susceptible to blast and was used as the recurrent parent in this study. To improve MR263 disease resistance, the Pongsu Seribu 1 rice variety was used as donor of the bl ...
DOI:
10.1002/jsfa.7222

8. Recurrent parent genome recovery analysis in a marker-assisted backcrossing program of rice (Oryza sativa L.)

Author:
Gous Miah; Mohd Y. Rafii; Mohd R. Ismail; Adam B. Puteh; Harun A. Rahim; Mohammad A. Latif
Source:
Comptes rendus 2015 v.338 no.2 pp. 83-94
ISSN:
1631-0691
Subject:
Oryza sativa; backcrossing; blast disease; cultivars; genes; genetic background; loci; marker-assisted selection; microsatellite repeats; parents; rice; Malaysia
Abstract:
... Backcross breeding is the most commonly used method for incorporating a blast resistance gene into a rice cultivar. Linkage between the resistance gene and undesirable units can persist for many generations of backcrossing. Marker-assisted backcrossing (MABC) along with marker-assisted selection (MAS) contributes immensely to overcome the main limitation of the conventional breeding and accelerate ...
DOI:
10.1016/j.crvi.2014.11.003

9. Recurrent parent genome recovery in different populations with the introgression of Sub1 gene from a cross between MR219 and Swarna-Sub1

Author:
Fahim Ahmed; Mohd Y. Rafii; Mohd Razi Ismail; Abdul Shukor Juraimi; Harun Abdul Rahim; Fatah Abro Tanweer; Mohammad Abdul Latif
Source:
Euphytica 2016 v.207 no.3 pp. 605-618
ISSN:
0014-2336
Subject:
alleles; backcrossing; introgression; microsatellite repeats; new variety; parents; plant breeding; rice; submergence; Malaysia
Abstract:
... Recurrent parent genome (RPG) recovery is the most important step of marker assisted backcross breeding. This breeding approach is used to develop new varieties by inserting a particular gene of interest into the background of a modern variety, and removing undesirable segments linked with the target allele, which can survive after many generations of backcrossing. The marker assisted backcrossing ...
DOI:
10.1007/s10681-015-1554-5

10. 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

11. Development and application of a crossbreeding simulation model for goat production systems in tropical regions

Author:
Y. Tsukahara; K. Oishi; H. Hirooka
Source:
Journal of animal science 2011 v.89 no.12 pp. 3890-3907
ISSN:
0021-8812
Subject:
backcrossing; simulation models; stocking rate; energy; Elaeis guineensis; herds; production technology; goats; tropics; lactation; breeds; biological production; milk yield; Malaysia
Abstract:
... A deterministic simulation model was developed to estimate biological production efficiency and to evaluate goat crossbreeding systems under tropical conditions. The model involves 5 production systems: pure indigenous, first filial generations (F1), backcross (BC), composite breeds of F1 (CMPF1), and BC (CMPBC). The model first simulates growth, reproduction, lactation, and energy intakes of a do ...
DOI:
10.2527/jas.2011-3997
PubMed:
21705639

12. Analysis of growth patterns in purebred Kambing Katjang goat and its crosses with the German Fawn

Author:
Tsukahara, Y.; Chomei, Y.; Oishi, K.; Kahi, A.K.; Panandam, J.M.; Mukherjee, T.K.; Hirooka, H.
Source:
Small ruminant research 2008 v.80 no.1-3 pp. 8-15
ISSN:
0921-4488
Subject:
backcrossing; estimation; body weight; genetic improvement; goats; goat breeds; animal age; liveweight gain; growth models; genotype; body size; biological development; females; prediction; quantitative traits; Malaysia
Abstract:
... The objective of this study was to investigate growth patterns of goats utilizing data from a crossbreeding program involving the exotic German Fawn (GF) and the indigenous Kambing Katjang (KK) goats. Growth curve models and growth curve parameters were compared and analyzed for different genotypes and litter types. A total of 20,393 weight-age data from 208 female goats belonging to various cross ...
DOI:
10.1016/j.smallrumres.2008.07.030

13. Genetic and biochemical approach for characterization of resistance to Bacillus thuringiensis toxin Cry1Ac in a field population of the diamondback moth, Plutella xylostella

Author:
Sayyed, A.H.; Haward, R.; Herrero, S.; Ferre, J.; Wright, D.J.
Source:
Applied and environmental microbiology 2000 v.66 no.4 pp. 1509-1516
ISSN:
0099-2240
Subject:
Bacillus thuringiensis subsp. aizawai; Bacillus thuringiensis subsp. kurstaki; Plutella xylostella; alleles; at-risk population; backcrossing; binding sites; bioassays; brush border membrane vesicles; cross resistance; crystal proteins; incomplete dominance; larvae; loci; mortality; moths; progeny; toxins; Malaysia
Abstract:
... Four subpopulations of a Plutella xylostella (L.) strain from Malaysia (F(4) to F(8)) were selected with Bacillus thuringiensis subsp. kurstaki HD-1, Bacillus thuringiensis subsp. aizawai, Cry1Ab, and Cry1Ac, respectively, while a fifth subpopulation was left as unselected (UNSEL-MEL). Bioassays at F(9) found that selection with Cry1Ac, Cry1Ab, B. thuringiensis subsp. kurstaki, and B. thuringiensi ...
DOI:
10.1128/AEM.66.4.1509-1516.2000
PubMed:
10742234
PubMed Central:
PMC92015

14. Introgression of genes from Oryza officinalis well ex watt to cultivated rice, O. sativa, L

Author:
Jena, K.K.; Khush, G.S.
Source:
Theoretical and applied genetics 1990 v.80 no.6 pp. 737-745
ISSN:
0040-5752
Subject:
backcrossing; plant breeding; phenotype; Oryza sativa; crop yield; genes; genetic recombination; pest resistance; plant morphology; Fulgoroidea; introgression; Malaysia; Philippines; India; Thailand
DOI:
10.1007/BF00224186
PubMed:
24221103