Challenges to developing cultivars in the public sector

Hmielowski, Tracy

doi:10.2134/csa2017.62.1001

Cited by 2 publications

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“…However, simple spreadsheets or manually prepared note pages cannot be used to visualize the essential information and complex pedigrees. Breeding programs often suffer a lot when the breeder gets retired or moved to a different position [44–46]. The newly hired breeder cannot practically go through the individual records of the existing breeding germplasm.…”

Section: Resultsmentioning

confidence: 99%

Application of Pedimap — a pedigree visualization tool — to facilitate the decisioning of rice breeding in Sri Lanka

Rathnayake

Sahibdeen

Udawela³

et al. 2020

Preprint

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17The development of rice cultivars with desirable traits is essential. The decision-making is a 18 crucial step in rice breeding programs. The breeders can make efficient and pragmatic decisions 19 if an organized pedigree visualization platform is available for the material of the rice breeding 20 germplasm. The staple food in Sri Lanka is rice, and there is a great demand for improved 21 varieties with high yield and other promising traits. In the present study, the available data of 22 all the rice varieties released by Rice Research and Development Institute, Sri Lanka, and the 23 related landraces and genotypes were arranged in Pedimap, a pedigree visualization tool. 24 Pedimap can showcase pedigree relationships, phenotypic, and molecular data. The Identity by 25 Descent (IBD) probabilities were calculated using FlexQTL software and included in the 26 Pedimap database. The parentage selection based on the variations of phenotypic traits, 27 selection of marker alleles for molecular breeding, and detection of the founders of genetic 28 effects can be swiftly conducted using Pedimap. However, the power of harnessing the value 29of Pedimap for making breeding decisions relies on the availability of data for the traits, 30 markers, and genomic sequences. Thus, it is imperative to characterize the breeding 31 germplasms using standard phenomic and genomic characterization procedures before 32 organized into Pedimap. Thereby, the worldwide breeding programs can benefit from each 33 other to produce improved varieties to meet global challenges. 34 35

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Section: Resultsmentioning

confidence: 99%

Application of Pedimap — a pedigree visualization tool — to facilitate the decisioning of rice breeding in Sri Lanka

Rathnayake

Sahibdeen

Udawela³

et al. 2020

Preprint

View full text Add to dashboard Cite

show abstract

“…However, simple spreadsheets or manually prepared note pages cannot be used to visualize the essential information and complex pedigrees. Breeding programs often suffer a lot when the breeder gets retired or moved to a different position 49 – 51 . The newly hired breeder cannot practically go through the individual records of the existing breeding germplasm.…”

Section: Discussionmentioning

confidence: 99%

Application of Pedimap: a pedigree visualization tool to facilitate the decisioning of rice breeding in Sri Lanka

Rathnayake

Sahibdeen

Udawela³

et al. 2020

Sci Rep

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the development of rice cultivars with desirable traits is essential. the decision-making is a crucial step in rice breeding programs. Breeders can make efficient and pragmatic decisions if an organized pedigree visualization platform is available for the accessions and cultivars in rice breeding germplasm. in the present study, the available data of all the rice varieties released by Rice Research and Development institute, Sri Lanka, and the related landraces and genotypes were arranged in pedimap, a pedigree visualization tool. pedimap can showcase pedigree relationships, phenotypic, and molecular data. the identity by descent probabilities were calculated using flexQtL software and included in the pedimap database. the parentage selection based on the variations of phenotypic traits, selection of marker alleles for molecular breeding, and detection of the founders of genetic effects can be swiftly conducted using Pedimap. However, the power of harnessing the value of pedimap for making breeding decisions relies on the availability of data for the traits, markers, and genomic sequences. thus, it is imperative to characterize the breeding germplasms using standard phenomic and genomic characterization procedures such as the assessment of before organized into Pedimap. Thereby, the worldwide breeding programs can benefit from each other to produce improved varieties to meet global challenges. Rice is one of the major crops in the world, with an annual production over 700 million metric tons 1. Half of the world population consumes rice as the staple food 2. Currently, the demand for rice is rapidly increasing due to the growth of the human population 3. However, the current rice production cannot meet the increasing demand causing severe food security issues. The biotic and abiotic stresses also exert a negative influence on rice production 4. The rice farming is also a way of living for many people, especially in numerous Asian countries 5. At present, 1.8 million Sri Lankan families engage in rice farming over 870,000 hectares 6. The annual rice production in Sri Lanka is approximately 2.3 million metric tons (MT), which is insufficient to fulfill the domestic rice demand of 3.0 million 7. Hence, the Sri Lankan government spends about USD 400 million to import rice annually 7,8. The rice production is mainly affected by drought and irregular rainfall patterns caused by climate change 9-11 , adverse soil conditions such as salinity 6,12 , and pest and disease attacks 13. The biotic and abiotic stresses in rice farming can be controlled using numerous agronomic practices such as irrigation, drainage, fertilization, and the application of pesticides. However, the rate of success of the controlling methods is limited 13 due to the unpredictable nature of climate change, soil degradation, variations in pest dynamics, and development of pest resistance 14. Therefore, breeding is considered as the most successful strategy to produce high yielding and stress-resilient rice varieties 15. The improved rice genotypes can...

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Challenges to developing cultivars in the public sector

Cited by 2 publications

References 0 publications

Application of Pedimap — a pedigree visualization tool — to facilitate the decisioning of rice breeding in Sri Lanka

Application of Pedimap — a pedigree visualization tool — to facilitate the decisioning of rice breeding in Sri Lanka

Application of Pedimap: a pedigree visualization tool to facilitate the decisioning of rice breeding in Sri Lanka

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