Induced mutation breeding

In Thailand, there are three major species of Colletotrichum spp. which caused anthracnose disease to chili product; Colletotrichum gloeosporioides, C. capsici and C. acutatum. In 2015, the researchers from Thailand Institute of Nuclear Technology reported a first success of radiation-induced mutation breeding for anthracnose resistance which caused by C. gloeosporioides in Sukhothai.

7p vicedric 08-02-2023 4 3   Download

Artificial mutagenesis not only provides a new approach to increase the diversity of desirable traits for breeding new varieties but are also beneficial for characterizing the genetic basis of functional genes.

8p viansan2711 30-07-2021 8 1   Download

Induced mutations have proven flexible, workable and ready to use on any crop. In addition, it is a low-cost technology that has the ability to address current challenges in agriculture. The breeding of new mutant varieties with a higher yield potential will be the driving force to meet the challenges of the 21st century.

8p nguathienthan8 20-10-2020 7 2   Download

Mutagens are known to widen range of genetic variation for characters in plant. Therefore, induced mutation breeding was initiated for augmenting its productivity. Result of this investigation presented in this paper.

4p trinhthamhodang1215 23-09-2020 11 1   Download

The development of fruits without fertilization is known as parthenocarpy. Parthenocarpy improves the fruit quality, processing attributes, production and productivity of vegetable crops like tomato, cucumber, watermelon etc. Absence of seeds can enhances the shelf life of the fruits, allowing a better conservation, fruit set in adverse climatic conditions, early and offseason production of vegetable crops. Therefore, it is important to ensure yield stability regardless of environmental conditions.

20p gaocaolon5 14-06-2020 14 2   Download

Mutation breeding is one of the best ways to induce genetic variability within a crop species in a short period of time. It is equally a potentially powerful tool for cluster bean as other crops for genetic enrichment. The gamma radiation induced 190 M4 mutant lines of cluster bean [Cyamopsis tetragonoloba (L.) Taub.] obtained from Centre for Biotechnological Research (CBR), Dept. of BCI, College of Horticulture, Bengaluru and which were used for the field experiment on spikelet sterility during kharif 2017 (June - November) at College of Horticulture, Mysore.

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Mutagenic efficiency and effectiveness is an important factor for the selection of a mutagen for a mutation breeding program. The mutagenic efficiency gives an idea of the proportion of mutation on relation to the other associated undesirable biological effects such as lethality, sterility and meiotic aberrations while mutagenic effectiveness is a measure of the frequency of the mutation induced by unit dose of mutagens. The usefulness of any particular mutagen in crop breeding depends not only on its mutagenic effectiveness but also on the mutagenic efficiency of the mutagen.

4p gaocaolon5 14-06-2020 16 1   Download

Variability caused by induced mutations is not essentially different from variability caused by spontaneous mutation during evolution. Although marigold (Tagetes spp.) is an important commercial crop the major breeding obstacle is non-availability of known sources for creating a novelty. Therefore, in vivo grown seedlings and in vitro raised proliferated cultures of marigold cultivar Pusa Narangi Gainda were subjected to gammairradiation to develop mutant populations. 11 Mutants were grown in the M1 generation and variants screened based on yield and morphological characters.

10p trinhthamhodang5 16-05-2020 26 1   Download

Chickpea (Cicer arietinum L.) is an important cool-season food legume grown extensively by the poor farmers throughout the Indian subcontinent. In India chickpea is being grown in 8.32 million hectare with production of 9.8 million tones and 925 - kg/ha productivity (Project coordinators report, 2014-15). The Dry root rot (DRR) of chickpea caused by necrotropic fungus Rhizoctonia bataticola.

10p trinhthamhodang5 16-05-2020 15 1   Download

Increasing the productivity of rapeseed as one of the widely cultivated oil crops in the world is of upmost importance. As flowering time and plant architecture play a key role in the regulation of rapeseed yield, understanding the genetic mechanism underlying these traits can boost the rapeseed breeding

12p vishikamaru2711 29-04-2020 14 1   Download

Soybean is subjected to genetic manipulation by breeding, mutation, and transgenic approaches to produce value-added quality traits. Among those genetic approaches, mutagenesis through fast neutrons radiation is intriguing because it yields a variety of mutations, including single/multiple gene deletions and/or duplications.

12p viharuno2711 21-04-2020 6 0   Download

The experiment was carried out on gladiolus variety ‘Psittacinus Hybrid’ to know the best mutagen between physical mutagen (Gamma rays) and chemical mutagen (DES). The experiment was carried out at Floriculture Research Farm, ASPEE college of Horticulture and Forestry, Navsari during the year 2013-2014.

8p trinhthamhodang4 22-03-2020 8 2   Download

Gamma radiation is the most commonly used mutagen in plants as it causes a high frequency of induced mutations. It can be used to overcome the difficulties in papaya breeding to get true to type plantlets especially in dioecious varieties. An optimum dose is highly desired to produce the high frequency of mutations with minimum killing of treated individuals. Therefore, the present investigation was undertaken to determine the LD50 of gamma rays and effect of different dosages of gamma rays on morphological, physiochemical, biochemical parameters of papaya.

13p caygaocaolon2 11-03-2020 20 0   Download

French bean is one of the most important legume vegetables with highly antidiabetic property and used for cardiac problems. Mungbean yellow mosaic virus (MYMV) is one of the destructive viral diseases affecting yield potential of french bean both quantitatively and qualitatively. Induced mutations have offered a single and short alternative to conventional breeding including isolation, screening, selection and testing generation after generation. An investigation was carried out with Arka Anoop (French bean cultivar), treated with mutagen Ethyl Methane Sulphonate (EMS) at the dose of 0.

6p caygaocaolon3 09-03-2020 18 1   Download

Berseem, a nitrogen-fixing, annual, multicut forage crop cultivated around 2 million hectares areas of northern, central and eastern parts of India. Berseem has variability for pollination behavior however variation for morphological and agronomic traits are scare, perhaps, because of initially introduction of crop with narrow genetic base. Genetic variability have been fortified through introduction of exotic materials, intra-interspecific hybridization, induction of polyploidy and mutation. ICAR-Indian Grassland and Fodder Research Institute maintain >900 accessions of Trifolium spp.

9p nguaconbaynhay1 04-12-2019 22 0   Download

Mutation breeding is one of the breeding methods used successfully in durum wheat for selecting lines with increased agronomic values. The aim of this study was to select mutant lines having a better agronomic potential than the mother variety Gediz-75 in the M6 and M7 generations. The mutants were derived from the variety Gediz-75 of durum wheat (Triticum durum Desf.).

7p masterbarista 14-01-2019 25 1   Download