Genetic diversity among sorghum landraces of southwestern highlands of Uganda

Rubaihayo, P. R.; Odong, Thomas

doi:10.4314/acsj.v24i2.6

Cited by 19 publications

(20 citation statements)

References 21 publications

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“…Clearly, SL2 and SL4 surpassed the other genotypes including Giza 15. Many researchers have studied yield of different sorghum landraces and obtained significant differences among tested genotypes (El Naim et al, 2012, Abdel-Fatah et al, 2013, Ghani et al, 2015and Akatwijuka et al, 2016. Thus, our results are in harmony with their findings.…”

Section: A Grain Yield Evaluationsupporting

confidence: 90%

Assessment of Genetic Diversity Among Egyptian Sorghum Landraces for Grain Yield Variability Using ISSR Markers Analysis

Bashandy

2016

Journal of Agricultural Chemistry and Biotechnology

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Genetic diversity is an important tool for providing desirable parents during plant breeding programs. Landraces are good source for genetic variability. Thus, this study was performed during two successive seasons to determine the usefulness and genetic diversity among four sorghum (Sorghum bicolor L. Moench) landraces they were collected from three different regions in the New Valley governorate of Egypt, in addition to Giza 15 as a control. These genotypes were studied for grain yield performance and inter simple sequence repeat (ISSR) molecular marker analysis. The results showed that all the genotypes were significantly different for grain yield, whereas SL2 landrace produced the highest grain yield of 121.13 g/plant, while the lowest value of 77.13 g was produced by SL3 landrace. In addition, Genetic variability was estimated using ISSR markers where highly polymorphism of 87.8% was observed and moderate similarity relationships were detected. The highest similarity of 0.69 was fond between SL4 and SL2 landraces, but Giza 15 and SL1 showed the lowest similarity of 0.48. Interestingly, UBC846 primer was able to produce negative specific unique band for highly grain yield which would be used as highly grain yield marker. On the other hand, dendrogram analysis isolated the check cultivar in one cluster, while all landraces were located in one other cluster. Furthermore, both SL4 and SL2 which collected from the same region formed one group and exceeded the control. The diversity that observed among landraces and superiority of some of them in grain yield suggested that landraces could be a beneficial tool for sorghum improvement.

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Section: A Grain Yield Evaluationsupporting

confidence: 90%

Assessment of Genetic Diversity Among Egyptian Sorghum Landraces for Grain Yield Variability Using ISSR Markers Analysis

Bashandy

2016

Journal of Agricultural Chemistry and Biotechnology

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“…It was presented the mean performance of Panicle length per plant ranged from 52.00 cm to 67.5 cm with mean value of 58.833 cm. Significantly maximum Panicle length per plant (67.5 cm) highest value was recorded by T5 -Magnetic field @400 mT Similar findings were reported and observed high variability for panicle length and width of earlier reports in Sorghum by Elangovan et al (2013) ) and similar results were reported by Dossou -Aminon et al (2015) and reports of R. Akatwijuka et al (2016) in millets.…”

Section: Panicle Length Per Plantsupporting

confidence: 89%

Standardization of Different Pre-sowing Seed Treatments on Growth, Yield and Yield Attributing Traits of Kodo Millet (Paspalum scorbiculatum)

Kavitha

Kumar

Haritha

et al. 2021

IJARe

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Background: Paspalum scorbiculatum is an annual crop and has superior nutritional properties including high micronutrients, dietary fiber content and gluten free. It has low glycemic index (GI) carbohydrate diets help in prevention of Obesity, Diabeties and Cardiovascular diseases, etc. The current study was aimed to find out the suitable pre- sowing seed treatments for Kodo millet. Methods: During the Kharif season 2019- 2020 total of 12 pre- sowing seed treatments were subjected with Botanicals, Magnetic and Electric fields, Thermal (Hot water) treatments and to fix the best treatment based on Seed Quality and Morphological traits of treated seeds. Morphological traits play an major role in crop growth and development where as, the present investigation was carried out with farmer’s variety in field (RBD) design in 3 replications and laboratory (CRD) design in 4 replications in order to “Standardization of different pre- sowing seed treatments on growth, yield and yield attributing traits of Kodo millet (Paspalum scorbiculatum). Seeds were subjected to various pre- sowing seed treatments viz. (T0) control, exposure to Magnetic field at 100 mT, 200 mT, 400 mT for 15,30 and 45 min; exposure to Electric field at 50 mA, 100 mA, 150 mA for 5,10, 15 min. Treatment with botanicals cow dung (5 gm) and Datura leaf extract (2.5 ml) for 12 hrs; Thermal hot water treatment at 46°C and 50°C for 10 min. Result: Among all the treatments, T4-Magnetic field (200 mT) gave the best results in field and lab conditions of field emergence (98.610) and germination% (98.5), Magnetic field (400 mT) shown the good results and significantly higher values of all other yield (45.867, 78.833, 660.480, 165.120) and morphological traits as well as seed quality parameters like shoot length (86.925), root length (44.55), seedling length (13.131), vigour index- I and II (1267.138 and 5.058), fresh (0.343) and dry (0.0524) weight of seedlings and comparatively control (T0) was observed lowest to other treatments. As such, Magnetic treatment is quite effective for seedling establishment to overcome low germination and yield which helps in Qualitative and Quantiative seed production of Millets in sustainable agriculture.

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“…Based on the principles of artificial selection (Yamasaki et al 2007), farmers select cultivars with preferred traits and thus increase their proportion compared to other cultivars. According to (Akatwijuka et al 2016), sorghum from south-western Uganda tend to have semi-compact elliptic panicles, a well-known characteristic of caudatum and its intermediate races.…”

Section: Discussionmentioning

confidence: 99%

Genetic diversity analysis and characterization of Ugandan sorghum

Chakrabarty

Mufumbo

Jordan

et al. 2022

Preprint

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The National Genebank of Uganda houses a diverse and rich Sorghum bicolor germplasm collection. This genetic diversity resource is untapped, under-utilized, and has not been systematically incorporated into sorghum breeding programs. In this study, we characterized the germplasm collection using whole-genome SNP markers. Discriminant analysis of principal components (DAPC) was implemented to study racial ancestry of the accessions in comparison to a global sorghum diversity set and characterize sub-groups and admixture in the Ugandan germplasm. Genetic structure and phylogenetic analysis were conducted to identify distinct genotypes in the Ugandan collection and relationships among groups. Furthermore, in a case study for the identification of potentially useful adaptive trait variation for breeding, we performed genome-wide association studies for juvenile cold tolerance. Genomic regions potentially involved in the adaptation of Ugandan sorghum varieties to cooler climatic conditions were identified that could be of interest for expansion of sorghum production into temperate latitudes. The study demonstrates how genebank genomics can potentially facilitate effective and efficient usage of valuable, untapped germplasm collections for agronomic trait evaluation and subsequent allele mining.

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Genetic diversity among sorghum landraces of southwestern highlands of Uganda

Cited by 19 publications

References 21 publications

Assessment of Genetic Diversity Among Egyptian Sorghum Landraces for Grain Yield Variability Using ISSR Markers Analysis

Assessment of Genetic Diversity Among Egyptian Sorghum Landraces for Grain Yield Variability Using ISSR Markers Analysis

Standardization of Different Pre-sowing Seed Treatments on Growth, Yield and Yield Attributing Traits of Kodo Millet (Paspalum scorbiculatum)

Genetic diversity analysis and characterization of Ugandan sorghum

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