Displaying publications 61 - 80 of 244 in total

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  1. Bongso TA, Jainudeen MR, Dass S
    Theriogenology, 1981 Apr;15(4):415-25.
    PMID: 16725600
    Forty Droughtmaster bulls were evaluated for breeding soundness, using the method of examination and criteria for classifying bulls of the Society for Theriogenelogy. Eighty three percent of the bulls were classified as satisfactory, 14 percent as questionable and 3 percent as unsatisfactory breeders. Scrotal circumference for 2 to 8-year-old bulls were smaller in questionable and unsatisfactory bulls, as compared to satisfactory bulls. For bulls rated as satisfactory breeders, the scrotal circumference of 37 to 43 cms was higher than for other beef breeds. Three related bulls (2 questionable, 1 satisfactory) carried sperm defects classified as 'knobbed' (38 +/- 3%), 'Dag' (40 +/- 4%) and 'pseudo-droplets' (41 +/- 5%), which may adversely affect fertility.
    Matched MeSH terms: Breeding
  2. KATHLEEN MICHELLE LUKING, DENCY FLENNY GAWIN, JESSIE MENTIE
    MyJurnal
    Breeding territoriality plays a role in determining the reproduction outcome of many passerines species. The spot-mapping was used to estimate the breeding territory size of a territorial male of Oriental Magpie robin (Cospychus saularis) at Dahlia College, Universiti Malaysia Sarawak which is located within Kota Samarahan. It was conducted by mapping the song perching locations established by a marked male. The breeding territory size of the male was estimated to be 0.78 hectares. The data analysis was done using Minimum Convex Polygon (MCP) which was constructed by using Google Earth Pro software. Study on breeding territory size of this bird species is crucial to understand more regarding the breeding behaviour of this species. Data on the behavior of this species could be used for future studies of this bird in Borneo.
    Matched MeSH terms: Breeding
  3. Salleh SM, Sah SAM, Chowdhury AJK
    Trop Life Sci Res, 2018 Mar;29(1):155-171.
    PMID: 29644022 MyJurnal DOI: 10.21315/tlsr2018.29.1.11
    The nesting of green turtle (Chelonia mydas) was monitored from 1998 untill 2013 along the beaches of Pasir Panjang, Segari, Perak. The objective of the study is to assess the nesting status of green turtles in Perak, Peninsular Malaysia in terms of total nests, eggs, survival hatchings, and density of visitors. A total number of green turtle nests found for 16 years were 1,019 nests and varied from 10 to 220 nests per year. Meanwhile, the sum of eggs collected for 16 years were 107,820 eggs, and varied from 553 to 20,881 eggs per year. The temporal pattern of nesting indicates year-round nesting in Perak in most years within the 16 years period. The peak season of nesting was estimated to occur between May and June. Survival hatchlings varied from 23.33% (2,071 hatchlings) to 55.03% (5,018 hatchlings) from 1998 to 2013. The density of visitors was not uniformly distributed among the years, and shows a sign of decline especially from 2006 onwards. This publication provides basic knowledge of green turtle nesting population in Perak, and would be helpful in upgrading the conservation program in Malaysia. In future, we hope 1) for an increase in manpower to obtain accurate nesting records along the nesting beaches during nocturnal survey and, 2) to include the breeding biology data such as nest placement, emergence hour, and morphological characteristics of green turtle.
    Matched MeSH terms: Breeding
  4. Shakinah Salleh, Zaiton Ahmad, Affrida Abu Hassan, Yahya Awang, Yutaka Oono
    MyJurnal
    Chrysanthemum morifolium is an important temperate cut flower for Malaysian floriculture
    industry and the lack of new local owned varieties led to this mutation breeding research. The
    objective of this study was to compare the effectiveness of ion beam irradiation in generating
    mutations on ray florets and nodal explants of Chrysanthemum morifolium cv. ‘Reagan Red’. Ion
    beams has become an efficient physical mutagen for mutation breeding. The ray florets and nodal
    explants were irradiated with ion beams at doses 0, 0.5, 1.0, 2.0, 3.0, 5.0, 8.0, 10, 15, 20 and 30 Gy.
    The 50% of in vitro shoot regeneration (RD50) for ray florets explants was 2.0 Gy and for nodal
    explants was 4.0 Gy. Thus, relative biological effectiveness (RBE) for ray florets was found 2.0
    times higher than the nodal explants. The regenerated plantlets were planted in the greenhouse at
    MARDI, Cameron Highlands for morphological screening. Overall performance of survival
    plantlets derived from in vitro nodal and ray floret explants was recorded. The characters studied
    include plant morphology and flowering characteristic. The ray florets explants were found to be
    more sensitive to ion beam irradiation and generated more mutations as compared to nodal
    explants.
    Matched MeSH terms: Breeding
  5. Rodrigues, K. F.
    MyJurnal
    Molecular techniques involving the application of DNA based molecular markers for the conservation and management of endemic and endangered species have assumed significance as
    genome sequencing projects have generated an extensive database which can be mined for informative genomic regions. Scientific approaches towards conservation involve several stages, which encompass determination of appropriate genomic regions for characterization, design and testing of specific molecular markers, screening of multiple populations and statistical treatment and
    interpretation of data. Population data can be utilized to develop controlled breeding and relocation programs aimed at ensuring that genetic diversity within populations of endangered species is
    sustained within the context of an overall conservation program. The information derived as a result of this approach can be applied to establish a scientific and legal framework for the conservation of endemic species. Species specific genomic markers can be applied to enforce the implementation of CITES within the guidelines of a national biodiversity conservation policy.
    Matched MeSH terms: Breeding
  6. Chatterji, Ani, Faizah Shaharom
    MyJurnal
    The central coast of Tamil Nadu, Andaman and Nicobar Islands, along with other regions, was severely hit by the tsunami on 26 December 2004. A strange spawning behaviour of the Indian horseshoe crabs (Tachypleus gigas, Müller) was observed after the tsunami disturbance. Along the northeast coast of India, the horseshoe crabs normally migrate towards the shore in large numbers coinciding with the tidal height and grain size of the sediment and spawn in nests made in sand. The spawning behaviour was normal until November 2004 and throughout that period about 35 to 45 nests in 200 m2 of area of the breeding beach were examined. However, no nesting was observed from December 2004 to March 2005, i.e. after the occurrence of tsunami. The number of nests per 200 m2 of area (~82) and the number of eggs per nest (750-1000 eggs) were increased considerably when the normal conditions were restored in April 2005. The absence of spawning migration, from December 2004 to March 2005, is totally an unusual behaviour and this happened for the first time during the past several years of the study period.
    Matched MeSH terms: Breeding
  7. Jasim Aljumaili S, Rafii MY, Latif MA, Sakimin SZ, Arolu IW, Miah G
    Biomed Res Int, 2018;2018:7658032.
    PMID: 29736396 DOI: 10.1155/2018/7658032
    Aromatic rice cultivars constitute a small but special group of rice and are considered the best in terms of quality and aroma. Aroma is one of the most significant quality traits of rice, and variety with aroma has a higher price in the market. This research was carried out to study the genetic diversity among the 50 aromatic rice accessions from three regions (Peninsular Malaysia, Sabah, and Sarawak) with 3 released varieties as a control using the 32 simple sequence repeat (SSR) markers. The objectives of this research were to quantify the genetic divergence of aromatic rice accessions using SSR markers and to identify the potential accessions for introgression into the existing rice breeding program. Genetic diversity index among the three populations such as Shannon information index (I) ranged from 0.25 in control to 0.98 in Sabah population. The mean numbers of effective alleles and Shannon's information index were 0.36 and 64.90%, respectively. Similarly, the allelic diversity was very high with mean expected heterozygosity (H
    e
    ) of 0.60 and mean Nei's gene diversity index of 0.36. The dendrogram based on UPGMA and Nei's genetic distance classified the 53 rice accessions into 10 clusters. Analysis of molecular variance (AMOVA) revealed that 89% of the total variation observed in this germplasm came from within the populations, while 11% of the variation emanated among the populations. These results reflect the high genetic differentiation existing in this aromatic rice germplasm. Using all these criteria and indices, seven accessions (Acc9993, Acc6288, Acc6893, Acc7580, Acc6009, Acc9956, and Acc11816) from three populations have been identified and selected for further evaluation before introgression into the existing breeding program and for future aromatic rice varietal development.
    Matched MeSH terms: Breeding
  8. Ramli R, Fauzi A
    Saudi J Biol Sci, 2018 Mar;25(3):513-519.
    PMID: 29686514 DOI: 10.1016/j.sjbs.2016.01.017
    Black-shouldered Kite (Elanus caeruleus) is a well-known raptor that inhabits open areas such as oil palm plantation or paddy field. To determine preferable habitat and nesting site of Black-shouldered Kite in oil palm landscape, we conducted a study on Black-shouldered Kite's nesting biology in Carey Island, Selangor, Malaysia. We divided the island into six types of habitat and conducted road-side count of Black-shouldered Kite from April 2009 to February 2011. Whenever the Black-shouldered Kite was detected, we thoroughly searched the surrounding area for their nest. In total, we have recorded forty nests. The nests were built on 15 species of trees but most of the trees shared common physical characteristics. Some novice breeders also used oil palm tree as their nesting site. Structure and building materials of nests constructed on oil palm trees were different from nests built on other trees. Of all breeding attempts, only four nests which were located in residential area adjacent to young oil palm habitat were successful. Among important characteristics of successful nesting site include taller trees with strong branches and good leaf coverage. These trees not only protect nests from predator detection (except from other predatory birds) and physical environment but also facilitate Black-shouldered Kite's foraging activities by providing good vantage point.
    Matched MeSH terms: Breeding
  9. Looi, Qi Hao, Abdul Rahman Omar
    MyJurnal
    Swiftlet
    s
    are small insectivorous birds which breed throughout Southeast Asia and
    the South Pacific.
    Among many swiftle
    t species, only a few are notable to produce edible bird’s
    nest
    s
    (EBN) from the secreted saliva during breeding seasons.
    The taxonomy of swiftlet
    s
    remains one of the most controversial in the avian species due to the high similarity in
    morphological charac
    teristics among the species. Over the last few decades, researchers have
    studied the taxonomy of swiftlet
    s
    based on the morphological
    trade
    , behavior, and genetic
    traits
    .
    However, despite all the efforts,
    the
    swiftlet taxonomy remains unsolved.
    The
    EBN is one of
    the
    most expensive animal products
    and frequently being referred
    to
    as the “
    Caviar of the East
    ”.
    The
    EBN market value varies from
    US
    $1000.00 to
    US
    $10,000.00 per kilogram depend
    ing
    on
    its grade, shape, type and origin.
    Hence, bird’s nest harve
    sting is considered a lucrative industry
    in many countries in Southeast Asia.
    However,
    the
    industry faced several challenges over the
    decades such as the authenticity of the EBN, the quality assurance and the depletion of swiftlet
    population. Furthermore,
    there is limited scientific evidence regarding EBN’s medical benefits
    as
    claimed by manufacturers. This paper reviews the taxonomy of swiftlet
    s
    , its morphological
    characteristics, the challenges currently encountered by the industry, and finally the
    compos
    ition and medical benefits of EBN.
    Matched MeSH terms: Breeding
  10. Zainal-Abidin RA, Abu-Bakar N, Sew YS, Simoh S, Mohamed-Hussein ZA
    Int J Genomics, 2019;2019:4168045.
    PMID: 31687375 DOI: 10.1155/2019/4168045
    Recently, rice breeding program has shown increased interests on the pigmented rice varieties due to their benefits to human health. However, the genetic variation of pigmented rice varieties is still scarce and remains unexplored. Hence, we performed genome-wide SNP analysis from the genome resequencing of four Malaysian pigmented rice varieties, representing two black and two red rice varieties. The genome of four pigmented varieties was mapped against Nipponbare reference genome sequences, and 1.9 million SNPs were discovered. Of these, 622 SNPs with polymorphic sites were identified in 258 protein-coding genes related to metabolism, stress response, and transporter. Comparative analysis of 622 SNPs with polymorphic sites against six rice SNP datasets from the Ensembl Plants variation database was performed, and 70 SNPs were identified as novel SNPs. Analysis of SNPs in the flavonoid biosynthetic genes revealed 40 nonsynonymous SNPs, which has potential as molecular markers for rice seed colour identification. The highlighted SNPs in this study show effort in producing valuable genomic resources for application in the rice breeding program, towards the genetic improvement of new and improved pigmented rice varieties.
    Matched MeSH terms: Breeding
  11. Noor Afizah A., Mohd Arif A.K., Nazni W.A., Lee, H.L.
    MyJurnal
    Introduction: Entomological surveillance is crucial to determine the abundance of dengue vector and to evaluate breeding areas of Aedes aegypti and Aedes albopictus. The objective of this study is to determine the distribution and breeding preference for both Ae. aegypti and Ae. albopictus in dengue endemic areas. Materials and Methods: Ovitraps surveillance was conducted in two dengue endemic areas; AU2, Keramat and Seksyen 7, Shah Alam, Selangor. A minimum number of 100 ovitraps were deployed for 5 days in the study sites. Samples collected were brought back to the lab and all larvae recovered were identified to species level. Results: The ovitap index (OI) in both localities exceeded the transmission threshold of 10% with the OI recorded ranged from 42.3-79.8% in AU2, Keramat and 16.7-42.9% in Seksyen 7, Shah Alam. Ae. albopictus was the dominant species in AU2 Keramat with the highest ratio Ae. aegypti to Ae. albopictus recorded was 1.00:22.79. Nonetheless, in Seksyen 7, Shah Alam the difference in Ae. aegypti to Ae. albopictus ratio is not really prominent with 1.00:3.61 for ovitraps deployed outdoor and 3.40:1.00 for ovitraps set indoor. It was determined that single infestation of either Ae. aegypti or Ae. albopictus is more frequent for ovitraps deployed indoor and/or outdoor, respectively. It was also determined that mixed infestations were found in this study indicating that both species can oviposit in the same container. Conclusion: This study indicates that OI is still above transmission threshold in both study sites. While Ae. aegypti and Ae. albopictus remain as a dominant indoor and outdoor breeder, respectively, mixed breeding of Aedes species in a same container was also observed.
    Matched MeSH terms: Breeding
  12. Biswash MR, Sharmin M, Rahman NMF, Farhat T, Siddique MA
    Sains Malaysiana, 2016;45:706-716.
    A field experiment was conducted from June to December, 2013 to study the genetic diversity of 15 modern T. Aman rice
    varieties of Bangladesh (Oryza sativa L.) with a view to assess the superior genotype in future hybridization program
    for developing new rice varieties that is suitable for the target environment. Analysis of variance for each trait showed
    significant differences among the varieties. High heritability associated with high genetic advance in percent of mean
    was observed for plant height and thousand seed weight which indicated that selection for these characters would be
    effective. Hence, thrust has to be given for these characters in future breeding program to improve the yield trait in rice.
    Multivariate analysis based on 10 agronomic characters indicated that the 15 varieties were grouped into four distant
    clusters. The inter cluster distance was maximum between cluster II and cluster IV. The highest intra-cluster distance was
    found in cluster IV. Based on positive value of vector 1 and vector 2, plant height and 1000-seed weight had maximum
    contribution towards genetic divergence. From the results, it can be concluded that the varieties BRRI dhan40, BRRI
    dhan44, BRRI dhan46, BRRI dhan49 and BINA dhan7 may be selected for future hybridization program.
    Matched MeSH terms: Breeding
  13. Yazid SN, Ahmad K, Razak MSFA, Rahman ZA, Ramachandran K, Mohamad SNA, et al.
    Braz J Biol, 2021;84:e248359.
    PMID: 34730685 DOI: 10.1590/1519-6984.248359
    Bacterial leaf blight (BLB) is one of the major rice diseases in Malaysia. This disease causes substantial yield loss as high as 70%. Development of rice varieties which inherited BLB resistant traits is a crucial approach to promote and sustain rice industry in Malaysia. Hence, this study aims were to enhance BLB disease resistant characters of high yielding commercial variety MR219 through backcross breeding approach with supporting tool of marker-assisted selection (MAS). Broad spectrum BLB resistance gene, Xa7 from donor parent IRBB7 were introgressed into the susceptible MR219 (recurrent parent) using two flanking markers ID7 and ID15. At BC3F4, we managed to generate 19 introgressed lines with homozygous Xa7 gene and showed resistant characteristics as donor parent when it was challenged with Xanthomonas oryzae pv. oryzae through artificial inoculation. Recurrent parent MR219 and control variety, MR263 were found to be severely infected by the disease. The improved lines exhibited similar morphological and yield performance characters as to the elite variety, MR219. Two lines, PB-2-107 and PB-2-34 were chosen to be potential lines because of their outstanding performances compared to parent, MR219. This study demonstrates a success story of MAS application in development of improved disease resistance lines of rice against BLB disease.
    Matched MeSH terms: Plant Breeding
  14. Ahmad A, Kurniawan SB, Abdullah SRS, Othman AR, Hasan HA
    Chemosphere, 2022 Mar;290:133319.
    PMID: 34922971 DOI: 10.1016/j.chemosphere.2021.133319
    The contamination of aquaculture products and effluents by contaminants of emerging concern (CECs) from the direct chemical use in aquaculture activities or surrounding industries is currently an issue of increasing concern as these CECs exert acute and chronic effects on living organisms. CECs have been detected in aquaculture water, sediment, and culture species, and antibiotics, antifoulants, and disinfectants are the commonly detected groups. Through accumulation, CECs can reside in the tissue of aquaculture products and eventually consumed by humans. Currently, effluents containing CECs are discharged to the surrounding environment while producing sediments that eventually contaminate rivers as receiving bodies. The rearing (grow-out) stages of aquaculture activities are issues regarding CECs-contamination in aquaculture covering water, sediment, and aquaculture products. Proper regulations should be imposed on all aquaculturists to control chemical usage and ensure compliance to guidelines for appropriate effluent treatment. Several techniques for treating aquaculture effluents contaminated by CECs have been explored, including adsorption, wetland construction, photocatalysis, filtration, sludge activation, and sedimentation. The challenges imposed by CECs on aquaculture activities are discussed for the purpose of obtaining insights into current issues and providing future approaches for resolving associated problems. Stakeholders, such as researchers focusing on environment and aquaculture, are expected to benefit from the presented results in this article. In addition, the results may be useful in establishing aquaculture-related CECs regulations, assessing toxicity to living biota, and preventing pollution.
    Matched MeSH terms: Breeding
  15. Li Z, He Y, Sonne C, Lam SS, Kirkham MB, Bolan N, et al.
    Environ Pollut, 2023 Feb 15;319:120964.
    PMID: 36584860 DOI: 10.1016/j.envpol.2022.120964
    Radionuclides released from nuclear contamination harm the environment and human health. Nuclear pollution spread over large areas and the costs associated with decontamination is high. Traditional remediation methods include both chemical and physical, however, these are expensive and unsuitable for large-scale restoration. Bioremediation is the use of plants or microorganisms to remove pollutants from the environment having a lower cost and can be upscaled to eliminate contamination from soil, water and air. It is a cheap, efficient, ecologically, and friendly restoration technology. Here we review the sources of radionuclides, bioremediation methods, mechanisms of plant resistance to radionuclides and the effects on the efficiency of biological adsorption. Uptake of radionuclides by plants can be facilitated by the addition of appropriate chemical accelerators and agronomic management, such as citric acid and intercropping. Future research should accelerate the use of genetic engineering and breeding techniques to screen high-enrichment plants. In addition, field experiments should be carried out to ensure that this technology can be applied to the remediation of nuclear contaminated sites as soon as possible.
    Matched MeSH terms: Plant Breeding
  16. Haque MA, Rafii MY, Yusoff MM, Ali NS, Yusuff O, Arolu F, et al.
    Mol Biol Rep, 2023 Mar;50(3):2795-2812.
    PMID: 36592290 DOI: 10.1007/s11033-022-07853-9
    Natural and man-made ecosystems worldwide are subjected to flooding, which is a form of environmental stress. Genetic variability in the plant response to flooding involves variations in metabolism, architecture, and elongation development that are related with a low oxygen escape strategy and an opposing quiescence scheme that enables prolonged submergence endurance. Flooding is typically associated with a decrease in O2 in the cells, which is especially severe when photosynthesis is absent or limited, leading to significant annual yield losses globally. Over the past two decades, considerable advancements have been made in understanding of mechanisms of rice adaptation and tolerance to flooding/submergence. The mapping and identification of Sub1 QTL have led to the development of marker-assisted selection (MAS) breeding approach to improve flooding-tolerant rice varieties in submergence-prone ecosystems. The Sub1 incorporated in rice varieties showed tolerance during flash flood, but not during stagnant conditions. Hence, gene pyramiding techniques can be applied to combine/stack multiple resistant genes for developing flood-resilient rice varieties for different types of flooding stresses. This review contains an update on the latest advances in understanding the molecular mechanisms, metabolic adaptions, and genetic factors governing rice flooding tolerance. A better understanding of molecular genetics and adaptation mechanisms that enhance flood-tolerant varieties under different flooding regimes was also discussed.
    Matched MeSH terms: Selective Breeding
  17. Calingacion M, Laborte A, Nelson A, Resurreccion A, Concepcion JC, Daygon VD, et al.
    PLoS One, 2014;9(1):e85106.
    PMID: 24454799 DOI: 10.1371/journal.pone.0085106
    With the ever-increasing global demand for high quality rice in both local production regions and with Western consumers, we have a strong desire to understand better the importance of the different traits that make up the quality of the rice grain and obtain a full picture of rice quality demographics. Rice is by no means a 'one size fits all' crop. Regional preferences are not only striking, they drive the market and hence are of major economic importance in any rice breeding / improvement strategy. In this analysis, we have engaged local experts across the world to perform a full assessment of all the major rice quality trait characteristics and importantly, to determine how these are combined in the most preferred varieties for each of their regions. Physical as well as biochemical characteristics have been monitored and this has resulted in the identification of no less than 18 quality trait combinations. This complexity immediately reveals the extent of the specificity of consumer preference. Nevertheless, further assessment of these combinations at the variety level reveals that several groups still comprise varieties which consumers can readily identify as being different. This emphasises the shortcomings in the current tools we have available to assess rice quality and raises the issue of how we might correct for this in the future. Only with additional tools and research will we be able to define directed strategies for rice breeding which are able to combine important agronomic features with the demands of local consumers for specific quality attributes and hence, design new, improved crop varieties which will be awarded success in the global market.
    Matched MeSH terms: Breeding/economics*; Breeding/methods*
  18. Ho WK, Muchugi A, Muthemba S, Kariba R, Mavenkeni BO, Hendre P, et al.
    Genome, 2016 Jun;59(6):427-31.
    PMID: 27244454 DOI: 10.1139/gen-2016-0029
    Maximizing the research output from a limited investment is often the major challenge for minor and underutilized crops. However, such crops may be tolerant to biotic and abiotic stresses and are adapted to local, marginal, and low-input environments. Their development through breeding will provide an important resource for future agricultural system resilience and diversification in the context of changing climates and the need to achieve food security. The African Orphan Crops Consortium recognizes the values of genomic resources in facilitating the improvement of such crops. Prior to beginning genome sequencing there is a need for an assessment of line varietal purity and to estimate any residual heterozygosity. Here we present an example from bambara groundnut (Vigna subterranea (L.) Verdc.), an underutilized drought tolerant African legume. Two released varieties from Zimbabwe, identified as potential genotypes for whole genome sequencing (WGS), were genotyped with 20 species-specific SSR markers. The results indicate that the cultivars are actually a mix of related inbred genotypes, and the analysis allowed a strategy of single plant selection to be used to generate non-heterogeneous DNA for WGS. The markers also confirmed very low levels of heterozygosity within individual plants. The application of a pre-screen using co-dominant microsatellite markers is expected to substantially improve the genome assembly, compared to a cultivar bulking approach that could have been adopted.
    Matched MeSH terms: Breeding
  19. Phing Lau WC, Latif MA, Y Rafii M, Ismail MR, Puteh A
    Crit Rev Biotechnol, 2016;36(1):87-98.
    PMID: 24937109 DOI: 10.3109/07388551.2014.923987
    The eating and cooking qualities of rice are heavily emphasized in breeding programs because they determine market values and they are the appealing attributes sought by consumers. Conventional breeding has developed traditional varieties with improved eating and cooking qualities. Recently, intensive genetic studies have pinpointed the genes that control eating and cooking quality traits. Advances in genetic studies have developed molecular techniques, thereby allowing marker-assisted breeding (MAB) for improved eating and cooking qualities in rice. MAB has gained the attention of rice breeders for the advantages it can offer that conventional breeding cannot. There have been successful cases of using MAB to improve the eating and cooking qualities in rice over the years. Nevertheless, MAB should be applied cautiously given the intensive effort needed for genotyping. Perspectives from conventional breeding to marker-assisted breeding will be discussed in this review for the advancement of the eating and cooking qualities of fragrance, amylose content (AC), gel consistency (GC) and gelatinization temperature (GT) in rice. These four parameters are associated with eating and cooking qualities in rice. The genetic basis of these four parameters is also included in this review. MAB is another approach to rice variety improvement and development in addition to being an alternative to genetic engineering. The MAB approach shortens the varietal development time, and is therefore able to deliver improved rice varieties to farmers within a shorter period of time.
    Matched MeSH terms: Breeding
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