Special Issue "Genetics and Genomics of Tomato and Solanaceae"

A special issue of Agronomy (ISSN 2073-4395). This special issue belongs to the section "Crop Breeding and Genetics".

Deadline for manuscript submissions: 30 November 2018

Special Issue Editor

Guest Editor
Dr. Dilip R. Panthee

Department of Horticultural Science, North Carolina State University
Website | E-Mail
Phone: (828)654-8590
Interests: breeding for fruit quality; differential gene expression analysis; genomic selection; GWAS; molecular breeding; plant breeding; QTL mapping; resistance breeding; stress tolerance

Special Issue Information

Dear Colleagues,

The Solanaceae family consists of important vegetable crops, including eggplant (Solanum melongena L.), pepper (Capsicum annum L.), potato (Solanum tuberosum L.) and tomato (Solanum lycopersicum L.). Potato is also used as a staple food, next to cereals, in several parts of the world. All these member species of the Solanaceae family contribute significantly to the agriculture-based economy throughout the world. There are a lot of genomic resources that have already been developed (such as tomato and potato) or are being developed (such as eggplant and pepper) for these species. Because of its small genome size, tomato and Petunia, which is an important flower species, are also used as model plant for the analysis of genetics and genomics for various traits. With the availability of whole genome sequence and relatively smaller genome size, short life cycle and easy to make crosses, tomato is widely used as a model plant in genetics and genomic analysis. There is sequence homology between these species, which have been investigated further by researchers for in depth understanding of genetics, genomics, as well as to improve economic traits. Researchers have generated data on various aspects, including economically important traits, and are in the process of generating more data by exploiting the available genomic resources. The aim of this Special Issue is to contribute to the area of genetics and genomics of Solanaceae crop species so that newly-emerging information can further be used in our understanding of genetics and genomics of these species. Furthermore, this information can be exploited for the improvement of these crop species to make plant breeding sustainable.

Dr. Dilip R. Panthee
Guest Editor

Manuscript Submission Information

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Keywords

  • Bioinformatics
  • Genetic transformation
  • Genome editing
  • Genomic selection
  • GWAS
  • Molecular breeding
  • Molecular markers in plant breeding
  • QTL mapping
  • RNASeq analysis

Published Papers (4 papers)

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Research

Open AccessFeature PaperArticle Marketability Probability Study of Cherry Tomato Cultivars Based on Logistic Regression Models
Agronomy 2018, 8(9), 176; https://doi.org/10.3390/agronomy8090176
Received: 11 August 2018 / Revised: 5 September 2018 / Accepted: 6 September 2018 / Published: 9 September 2018
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Abstract
The purpose of this study was to demonstrate interest in applying simple and multiple logistic regression analyses to the marketability probability of commercial tomato (Solanum lycopersicum L.) cultivars when the tomatoes are harvested as loose fruit. A fruit’s firmness and commercial quality
[...] Read more.
The purpose of this study was to demonstrate interest in applying simple and multiple logistic regression analyses to the marketability probability of commercial tomato (Solanum lycopersicum L.) cultivars when the tomatoes are harvested as loose fruit. A fruit’s firmness and commercial quality (softening or over-ripe fruit, cracking, cold damage, and rotting) were determined at 0, 7, 14, and 21 days of storage. The storage test simulated typical conditions from harvest to purchase-consumption by the consumer. The combined simple and multiple analyses of the primary continuous and categorical variables with the greatest influence on the commercial quality of postharvest fruit allowed for a more detailed understanding of the behavior of different tomato cultivars and identified the cultivars with greater marketability probability. The odds ratios allowed us to determine the increase or decrease in the marketability probability when we substituted one cultivar with a reference one. Thus, for example, the marketability probability was approximately 2.59 times greater for ‘Santyplum’ than for ‘Angelle’. Overall, of the studied cultivars, ‘Santyplum’, followed by ‘Dolchettini’, showed greater marketability probability than ‘Angelle’ and ‘Genio’. In conclusion, the logistic regression model is useful for studying and identifying tomato cultivars with good postharvest marketability characteristics. Full article
(This article belongs to the Special Issue Genetics and Genomics of Tomato and Solanaceae)
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Open AccessArticle Diallel Analysis for Morphological and Biochemical Traits in Tomato Cultivated under the Influence of Tomato Leaf Curl Virus
Agronomy 2018, 8(8), 153; https://doi.org/10.3390/agronomy8080153
Received: 18 July 2018 / Revised: 15 August 2018 / Accepted: 17 August 2018 / Published: 19 August 2018
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Abstract
Eloquent information about the genetic basis of inheritance is important for any breeding program. Therefore, a diallel study was conducted under the influence of tomato leaf curl virus (TLCV) disease, using the eleven advanced lines of tomato. Firstly, information regarding percent disease index
[...] Read more.
Eloquent information about the genetic basis of inheritance is important for any breeding program. Therefore, a diallel study was conducted under the influence of tomato leaf curl virus (TLCV) disease, using the eleven advanced lines of tomato. Firstly, information regarding percent disease index (PDI) was determined via artificial screening with viruliferous whiteflies. Later, these lines were crossed in a half diallel mating design to produce fifty-five one-way hybrids. These hybrids and parental genotypes were evaluated for morphological and biochemical traits under open field conditions. Using the Griffing approach (Method II and Model I), the basis of the inheritance of traits was determined. Furthermore, a Bayesian model was applied to the total yield descriptor. Correlation data indicated that total yield was not correlated with any other trait. The significant general combining ability (GCA) and specific combining ability (SCA) values indicate exploitable genetic variation. The broad-sense heritability values were larger than narrow-sense heritability, showing that selection will be efficient for the improvement of these traits. Hybrid combinations H23, H42 and H49 can be considered efficient for the selection of multiple traits, including yield. Overall, this study provides useful information regarding the genetics of important traits of tomato under TLCV infestation. Full article
(This article belongs to the Special Issue Genetics and Genomics of Tomato and Solanaceae)
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Open AccessArticle Microbial Endophytes that Live within the Seeds of Two Tomato Hybrids Cultivated in Argentina
Agronomy 2018, 8(8), 136; https://doi.org/10.3390/agronomy8080136
Received: 15 June 2018 / Revised: 29 July 2018 / Accepted: 31 July 2018 / Published: 3 August 2018
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Abstract
Tomato (Solanum lycopersicum L.) is probably the most important vegetable consumed around the world, and like other produce is affected by stresses and diseases that reduce the yield and production. The purpose of this work was to study the phytobiome of the
[...] Read more.
Tomato (Solanum lycopersicum L.) is probably the most important vegetable consumed around the world, and like other produce is affected by stresses and diseases that reduce the yield and production. The purpose of this work was to study the phytobiome of the tomato seeds of two hybrids in order to understand first of all whether tomato cultivars host similar groups of organisms, as well as their effect on the community structure, particularly of those microbes with the potential to promote growth and/or control plant pathogens. Different cultivars of tomato (genotypes) host significantly different endophytic communities, which is also reflected at the order level. These communities are particularly rich in spore-forming bacteria that have the ability either to promote plant growth or synthetize antimicrobial compounds that deter plant pathogens. We conclude that the seeds of the tomato cultivars Elpida and Silverio are sources of endophytic bacteria capable of synthetizing antifungal substances that could potentially be used for biocontrol against plant-pathogenic fungi. Full article
(This article belongs to the Special Issue Genetics and Genomics of Tomato and Solanaceae)
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Open AccessArticle Response of Bell Pepper to Rootstock and Greenhouse Cultivation in Coconut Fiber or Soil
Agronomy 2018, 8(7), 111; https://doi.org/10.3390/agronomy8070111
Received: 6 May 2018 / Revised: 23 June 2018 / Accepted: 26 June 2018 / Published: 4 July 2018
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Abstract
Vegetable production in greenhouses is preferred when soil quality is degraded by high salinity or incidence of pests and diseases. In these soils with abiotic and biotic issues, it is a challenge to increase the yield and quality of fruits. The use of
[...] Read more.
Vegetable production in greenhouses is preferred when soil quality is degraded by high salinity or incidence of pests and diseases. In these soils with abiotic and biotic issues, it is a challenge to increase the yield and quality of fruits. The use of rootstocks and organic substrates are effective and environmentally friendly techniques to solve that challenge. The objective was to study the effect of rootstocks on yields and quality in bell peppers (Capsicum annuum L.) grown in either soil or coconut fiber substrate, in greenhouses. Using a randomized block design with three repetitions, the resulting treatment groups consisted of three rootstocks (Foundation-F1, Yaocali-F1, CLX-PTX991-F1 (Ultron), and non-grafted controls) with four hybrids as scions (Lamborghini, Bambuca, DiCaprio, and Ucumari). The yield of fruit per plant (YFP) and number of fruit per plant (NFP) obtained in coconut fiber were 85% and 55% greater, respectively, than in soil. The CLX-PTX991-F1 rootstock was superior to the hybrids without rootstock (p ≤ 0.05) in YFP and NPF (30% and 19.5%, respectively). The Lamborghini hybrid had significantly greater YFP and NFP than the Ucumari. We concluded that the use of coconut fiber significantly improves the yields of bell pepper and that the use of rootstock improves plant vigor and plant yield. Full article
(This article belongs to the Special Issue Genetics and Genomics of Tomato and Solanaceae)
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