Morphological Markers based Assessment of Genetic Diversity in Cultivated Tomato (Solanum Lycopersicon L.) Genotypes

Kaur, Supneet; Singh, A. K.; Bagati, Sreshti; Sharma, Mamta; Sharma, Satish C.

doi:10.22161/ijeab/3.2.34

Cited by 4 publications

(3 citation statements)

References 7 publications

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“…According to Adhikari et al (2018), small difference between GCV and PCV indicated that there was very little environmental influence on these traits and cannot be improved by providing favorable environment. In other hand, phenotypic variability is a reliable measure of genotypic variability (Kaur et al, 2018).…”

Section: Discussionmentioning

confidence: 99%

“…Genetic resources are the most valuable and essential basic raw material to meet the current and future needs for genetic improvement of any crop (Kaur et al, 2018). The phenotype is the first and easiest approach for the appraisal of genetic diversity in plant genetic resources and useful as a guide to follow up characterization and evaluation studies.…”

Section: Research Articlementioning

confidence: 99%

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Genetic Diversity of South Chadian Sorghum Landraces Assessed Through Quantitative and Qualitative Traits

Naoura¹,

Hassane²,

Reoungal³

et al. 2019

Int J Appl Sci Biotechnol

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Plant genetic resources and germplasm are fundamental sources for plant breeding, and the assessment of the genetic diversity among germplasm accessions is useful to facilitate the more efficient use of plant genetic resources. The current study was carried out to estimate genetic variability, heritability and genetic advance to select genotypes and traits for breeding. In the experiment undertaken, fifty-three sorghum landraces were evaluated for selected seven qualitative and fourteen quantitative traits using randomized complete block design in three repetitions. There were differences (p< 0.001) among landraces for all assessed traits indicating a high degree of variability. Higher genotypic coefficient of variation and phenotypic coefficient of variation were observed for grain weight of main panicle, number of leaf remain green and weight of main panicle. Estimates of phenotypic variances were higher than genotypic variance for all the studied quantitative traits. High heritability coupled with high genetic advance as per cent of mean was observed for majority of assessed traits. This study allowed noting a positive relationship between number of day to flowering with plant height and stay green, and a negative correlation between plant height and weight of main panicle. A dendrogram revealed four main clusters of genotypes. The D2 statistics confirmed the highest inter-cluster distance between all clusters. This indicated existence of the possibility to improve genotypes through hybridization from any pair of clusters.

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Section: Discussionmentioning

confidence: 99%

Section: Research Articlementioning

confidence: 99%

Genetic Diversity of South Chadian Sorghum Landraces Assessed Through Quantitative and Qualitative Traits

Naoura¹,

Hassane²,

Reoungal³

et al. 2019

Int J Appl Sci Biotechnol

View full text Add to dashboard Cite

show abstract

“…Among many different breeding programs, diversifying the germplasm is always defined as one of the most important steps. The genetic diversity data of many tomato germplasms have been reported and used for different breeding purposes such as developing elite inbred lines (Wang et al, 2016;Kaur et al, 2019), predicting potential heterosis between two parents in hybrid tomato breeding (Jin et al, 2019), and identifying valuable materials for specific breeding targets. Some breeding targets of greatest concern include: increasing fruit yield components (Reddy et al, 2013;Ziaf et al, 2016), improving fruit quality (Panthee et al, 2013;Singh et al, 2018), and accelerating adaptability to both biotic and abiotic stresses (Panthee & Chen, 2010;Danso et al, 2011;Hoagland et al, 2015;Hanson et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

The Comprehensive Analysis of Morphological Variation among 24 Tomato (Solanum Lycopersicum) Genotypes Oriented to Ornamental Breeding in Vietnam

Long

Minh

Anh

et al. 2020

vjas

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Tomato is one of the most important vegetables cultivated in Vietnam. Besides its regular consumption as a vegetable, a new demand for using tomato as a decorative plant on special occasions was identified in recent years. This study aimed to characterize new tomato accessions on their desirable morphological traits to select potential materials for further breeding programs of ornamental tomato varieties in Vietnam. Twenty-four heirloom tomato genotypes were evaluated on 19 morphological traits. Based on the describing system for tomato developed by the International Plant Genetic Resources Institute (IPGRI, 1996), significant variation was assessed in both qualitative and quantitative traits related to fruit morphology. The results of principle component analysis indicated that three main principle components explained over 60% of the total phenotypic variation. The five traits of fruit size, fruit shoulder shape, fruit cross-sectional shape, number of locules, and shape of the pistil scar were recommended as important traits for clustering tomato genotypes in this study. In addition, the 24 genotypes were classified at the coefficient of 0.39 into six different clusters. Finally, six interesting accessions, AU66, AU67, AU68, AU73, AU79, and AU83 (with strange fruit colors and shapes), were selected as potential materials for further breeding programs of ornamental tomato in Vietnam.

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Exploring genetic diversity of tomato (Solanum lycopersicum L.) germplasm of genebank collection employing SSR and SCAR markers

Gonias¹,

Ganopoulos

Mellidou

et al. 2019

Genet Resour Crop Evol

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Morphological Markers based Assessment of Genetic Diversity in Cultivated Tomato (Solanum Lycopersicon L.) Genotypes

Abstract: Assessment of genetic diversity in any crop species provides a basis for devising future strategies for crop improvement; conservation and sustainable use. An experiment consisting of 24 genotypes of Tomato was conducted during the year 2016 at the Research Farm

Cited by 4 publications

References 7 publications

Genetic Diversity of South Chadian Sorghum Landraces Assessed Through Quantitative and Qualitative Traits

Genetic Diversity of South Chadian Sorghum Landraces Assessed Through Quantitative and Qualitative Traits

The Comprehensive Analysis of Morphological Variation among 24 Tomato (Solanum Lycopersicum) Genotypes Oriented to Ornamental Breeding in Vietnam

Exploring genetic diversity of tomato (Solanum lycopersicum L.) germplasm of genebank collection employing SSR and SCAR markers

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