Genetic characterization and quantitative trait relationship using multivariate techniques reveal diversity among tomato germplasms

Ene, Chikezie Onuora; Abtew, Wosene Gebreselassie; Oselebe, Happiness Ogba; Ozi, Friday Ugadu; Ikeogu, Ugochukwu N.

doi:10.1002/fsn3.2850

Cited by 8 publications

(5 citation statements)

References 55 publications

(58 reference statements)

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“…The noteworthy amount of the T × T interaction observed implies both additive and crossover interactions in our dataset, indicating differential rankings of measured traits across treatments. This finding aligns with similar observations in other plant studies (Woyann et al, 2019;Ene et al, 2022;Fantahun et al, 2023), highlighting the challenge of achieving an indirect response to selection overall treatments without considering the T × T interaction.…”

Section: Resultssupporting

confidence: 92%

Graphical biplot assessment of pre-sowing procedures on the seeds of Dracocephalum moldavica L. employing diverse nanoparticles

Sabaghnia,

Janmohammadi,

Yousefzadeh

2024

biologija

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Dracocephalum moldavica L., the Moldavian dragonhead, has found its place in folk medicine and has been used to address kidney complaints. Pre-hydration methodologies were administered to dragonhead seeds utilising nano-silicon dioxide at three concentrations: Si1 0 mM as control, Si2 and Si3, 1 and 2 mM, respectively. Concurrently, treatments with nanoparticles of Fe in oxide form encompassed: Fe1 0 mM as control, Fe2 and Fe3, 1 and 2 mM, respectively. A range of parameters, including the germination percentage, weight (fresh and dry) and length of roots and shoots, seed residue dry weight, and root and shoot dry weights were meticulously gauged. The utilisation of the treatment-by-trait biplot facilitated the visualisation of interrelationships of traits and treatments, with the initial two principal components elucidating 80% of the observed variation. The majority of the traits are located in a specific sector of graph with Si2-Fe3 as the optimal pre-hydration treatment. The ideal treatment for eliciting elevated seed germination properties was detected as Si2-Fe3 (1 mM nano-silicon dioxide and 2 mM of Fe oxide nanoparticles) through the ideal entry biplot. Our findings strongly suggest that priming with silicon and Fe in form of nanoparticles holds the potential to expedite both germination and seedling growth in D. moldavica L. In summary, the text emphasises the potential benefits of nanoparticle technology in agriculture, underscores the importance of precise experimental optimisation, highlights the objectivity of the biplot, and suggests promising strategies for seed priming in the cultivation of the Moldavian dragonhead.

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Section: Resultssupporting

confidence: 92%

Graphical biplot assessment of pre-sowing procedures on the seeds of Dracocephalum moldavica L. employing diverse nanoparticles

Sabaghnia,

Janmohammadi,

Yousefzadeh

2024

biologija

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“…According to the authors, the lack of structure among the lines could be credited to the parents, which were diverse from each other. However, the population structure pattern observed in F3 and BC1F2 composite populations in the present study followed the relatedness found among the recurrent parents in an earlier genetic characterization study (Ene et al 2022). The closeness in relationship among the recurrent parents could have contributed to the observed population structuring pattern among the lines.…”

Section: Clustering Pattern Analysissupporting

confidence: 80%

“…It could be suspected that the genetic distance between the parental lines that generated lines of these clusters that showed overlapping are similar. Ene et al (2022) reported the grouping of the recurrent parents of clusters D (CLN2498D) and U (UC Dan INDIA) in the same cluster while those of clusters H (CLN2417H) and T (Tima) in the same cluster showing a level of relatedness. Although each cluster was of different interspecific cross, they were half sib progenies sharing a common parent (pollen donor-wild parent 'LA2093') from the initial cross.…”

Section: Clustering Pattern Analysismentioning

confidence: 99%

Selfing revealed positive values than backcrossing for yield and yield enhancing traits among tomato segregating populations generated from Solanum lycopersicum × S. pimpinellifolium crosses under tropical humid climate

Ene

Abtew

Oselebe

et al. 2023

Preprint

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The objectives of this study were to assess phenotypic variability among F3 and BC1F2 tomato populations, and apply genotype by yield*trait (GYT) biplots for population and line selection based on multiple traits. Four diverse cultivated parents (‘CLN2498D’ and ‘CLN2417H’ from Ethiopia; ‘UC Dan INDIA’ and ‘Tima’ from Nigeria), and wild parent ‘LA2093’ were used to generate 276 potential breeding lines. The lines were categorized into eight populations (‘Pop_1_W/H1’, ‘Pop_2_W/H2’, ‘Pop_3_W/D1’, ‘Pop_4_W/D2’, ‘Pop_5_W/T1’, ‘Pop_6_W/T2’, ‘Pop_7_W/U1’, and ‘Pop_8_W/U2’), and evaluated twice in the field using 19 × 15 alpha-lattice design with two replicates. Significant differences were observed among lines and populations for all yield enhancing traits. ‘Pop_1_W/H1’, ‘pop_4_W/D2’ and ‘pop_6_W/T2’ expressed the highest genetic divergence for plant height, number of leaves, total flower and fruit number, and fruit weight. GYT biplots revealed that all yield*trait interactions had a positive correlation with each other. F3 populations, ‘Pop_5_W/T1’ and ‘pop_1_W/H1’ exhibited the best performance for majority of the yield*trait combinations. Hierarchical clustering on principal components (HCPC) revealed overlapping lines (70.58% of Cluster D lines) and (54.05% of Cluster U lines) from the two F3 populations. In BC1F2 population, 32.35% of the 34 original lines of Cluster D and 48.48% of Cluster T lines overlapped between Clusters D and T, while 18.18% of Cluster T lines and 8.82% of Cluster H lines were transgressive between Clusters T and H. Transgressive segregants ‘0210U1’, ‘0211U1’, and ‘0171T1’ of selfed population using multivariate analysis were believed to represent potential sources of novel genetic variation for future tomato breeding.

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“…Te domesticated accessions were four morphologically diverse materials. Two divergent parents included; "CLN2498D" (D) and "CLN2714H" (H) sourced from Ethiopia as well as "UC Dan INDIA" (U) and "Tima" (T) from Nigeria were used as characterized by Ene et al [25] in terms of superiority and weakness in the quantitative traits. "CLN2498D" and "UC Dan INDIA" were superior performing parents in terms of fruit size (round and large) and fruit yield but had fewer fruit numbers and lacked resilience to humid environmental conditions whereas "CLN2714H" and "Tima" were the weaker performers in terms of fruit yield, fruit number; had elongated medium fruit size, and took longer days to achieve the phenological traits.…”

Section: Plant Materialsmentioning

confidence: 99%

Hybrid Vigor and Heritability Estimates in Tomato Crosses Involving Solanum lycopersicum × S. pimpinellifolium under Cool Tropical Monsoon Climate

Ene

Abtew

Oselebe

et al. 2023

International Journal of Agronomy

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High humidity is a major constraint to increased tomato fruit production in a cool tropical monsoon climate. However, the genetic variation observed in Solanum pimpinellifolium makes it a good gene donor for breeding tomato cultivars capable of thriving under high humidity. The objective of this study was to estimate heterosis, heritability for higher yield, and to assess the adaptability of the genotypes to humid conditions. Genotypes were raised from five morphologically divergent parents, viz., wild parent (W)–“LA2093,” “CLN2498D” (D), “CLN2417H” (H), “Tima” (T), and “UC Dan INDIA” (U). The F1s were generated by biparental mating design using “LA2093” as a common pollen donor that was selfed to produce F2s and backcrossed to both parents to obtain BC1s and BC2s. The trial was laid out in a randomized complete block design with three replicates. Data were collected on selected yield-influencing traits and analyzed. “D × W” and “U × W” hybrids showed significant positive better parent heterosis for fruit weight per plant (30.4% and 35.5%) and total fruit yield (48.6% and 26.9%), respectively. The additive variance was higher than dominance variance for all the traits, including total fruit yield in all hybrids viz., “H × W,” “D × W,” “T × W,” and “U × W.” High narrow sense heritability estimate of ≥60% was observed in “D × W” and “U × W” hybrids for the majority of the floral and fruit traits including total fruit yield. This makes the improvement of “D × W” and “U × W” hybrids by direct selection advantageous. Hence, the adoption of selection for the affected traits in subsequent tomato breeding programs would enhance fruit yield and adaptability to humid environments.

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Genetic characterization and quantitative trait relationship using multivariate techniques reveal diversity among tomato germplasms

Cited by 8 publications

References 55 publications

Graphical biplot assessment of pre-sowing procedures on the seeds of Dracocephalum moldavica L. employing diverse nanoparticles

Graphical biplot assessment of pre-sowing procedures on the seeds of Dracocephalum moldavica L. employing diverse nanoparticles

Selfing revealed positive values than backcrossing for yield and yield enhancing traits among tomato segregating populations generated from Solanum lycopersicum × S. pimpinellifolium crosses under tropical humid climate

Hybrid Vigor and Heritability Estimates in Tomato Crosses Involving Solanum lycopersicum × S. pimpinellifolium under Cool Tropical Monsoon Climate

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