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Rasheed A, Ilyas M, Khan TN, Mahmood A, Riaz U, Chattha MB, Al Kashgry NAT, Binothman N, Hassan MU, Wu Z, Qari SH. Study of genetic variability, heritability, and genetic advance for yield-related traits in tomato ( Solanum lycopersicon MILL.). Front Genet 2023; 13:1030309. [PMID: 36685955 PMCID: PMC9845701 DOI: 10.3389/fgene.2022.1030309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Accepted: 11/29/2022] [Indexed: 01/06/2023] Open
Abstract
Tomato is one of the most significant vegetable crops, which provides several important dietary components. Pakistan has a significant low tomato yield compared to other countries because of low genetic diversity and the absence of improved cultivars. The present study aimed to investigate the genetic variability, heritability, and genetic advance for yield and yield-related traits in tomato. For this purpose, eight tomato parents and their 15 crosses or hybrids were evaluated to study the relevant traits. Significant variation was observed for all studied traits. Higher values of the genotypic coefficient of variability (GCV) and phenotypic coefficient of variability (PCV) were recorded for yield per plant (YP) (kg) (37.62% and 37.79%), as well as the number of fruits per cluster (NFRC) (31.52% and 31.71%), number of flowers per cluster (24.63 and 24.67), and single fruit weight (g) (23.49 and 23.53), which indicated that the selection for these traits would be fruitful. Higher heritability (h2) estimates were observed for the number of flowers per cluster (NFC) (0.99%), single fruit weight (SFW) (g) (0.99%), and yield per plant (YP) (kg) (0.99%). Single fruit weight (SFW) (g) exhibited higher values for all components of variability. High genetic advance as a % of the mean (GAM) coupled with higher heritability (h2) was noted for the yield per plant (YP) (kg) (52.58%) and the number of fruits per cluster (NFRC) (43.91). NFRC and SFW (g) had a highly significant correlation with YP (kg), while FSPC had a significant positive association with YP (kg), and these traits can be selected to enhance YP (kg). Among the 15 hybrids, Nagina × Continental, Pakit × Continental, and Roma × BSX-935 were selected as high-yielding hybrids for further evaluation and analysis. These findings revealed that the best performing hybrids could be used to enhance seed production and to develop high-yielding varieties. The parents could be further tested to develop hybrids suitable for changing climatic conditions. The selection of YP (kg), SFW (g), NFC, and NFRC would be ideal for selecting the best hybrids.
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Affiliation(s)
- Adnan Rasheed
- Key Laboratory of Plant Physiology, Ecology, and Genetic Breeding, Ministry of Education/College of Agronomy, Jiangxi Agricultural University, Nanchang, Jiangxi, China,Department of Plant Breeding and Molecular Genetics, Faculty of Agriculture, The University of Poonch, Rawalakot, Azad Jammu and Kashmir, Pakistan,Vegetable Crops Research Programme, Horticultural Research Institute, National Agricultural Research Centre (NARC), Islamabad, Pakistan
| | - Muhammad Ilyas
- Department of Plant Breeding and Molecular Genetics, Faculty of Agriculture, The University of Poonch, Rawalakot, Azad Jammu and Kashmir, Pakistan
| | - Taj Naseeb Khan
- Vegetable Crops Research Programme, Horticultural Research Institute, National Agricultural Research Centre (NARC), Islamabad, Pakistan
| | - Athar Mahmood
- Department of Agronomy, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | - Usama Riaz
- Department Entomology, Faculty of Agriculture, The University of Poonch, Rawalakot, Azad Jammu and Kashmir, Pakistan
| | - Muhammad Bilal Chattha
- Department of Agronomy, Faculty of Agricultural Sciences, University of the Punjab, Lahore, Pakistan
| | | | - Najat Binothman
- Department of Chemistry, College of Sciences and Arts, King Abdulaziz University, Rabigh, Saudi Arabia
| | - Muhammad Umair Hassan
- Research Center on Ecological Sciences, Jiangxi Agricultural University, Nanchang, China
| | - Ziming Wu
- Key Laboratory of Plant Physiology, Ecology, and Genetic Breeding, Ministry of Education/College of Agronomy, Jiangxi Agricultural University, Nanchang, Jiangxi, China,*Correspondence: Ziming Wu,
| | - Sameer H. Qari
- Department of Biology, Al-Jumum University College, Umm Al-Qura University, Makkah, Saudi Arabia
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Soares de Oliveira C, Mascarenhas Maciel G, Carolina Silva Siquieroli A, Araújo Gomes D, Mendes Diniz N, Magno Queiroz Luz J, Yoshio Yada R. Artificial neural networks and genetic dissimilarity among saladette type dwarf tomato plant populations. FOOD CHEMISTRY: MOLECULAR SCIENCES 2021; 3:100056. [PMID: 35415642 PMCID: PMC8991817 DOI: 10.1016/j.fochms.2021.100056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 11/01/2021] [Accepted: 11/25/2021] [Indexed: 11/06/2022]
Abstract
New dwarf tomato genotypes were obtained for future breeding programs. Germplasm has agronomic potential, nutritional quality, and pest resistance. ANNs are efficient for the study of genetic dissimilarity in dwarf tomato germplasm. The BC1F3 UFU 13-1 population showed greater genetic dissimilarity.
Studies have shown that dwarf plants have the potential for use in obtaining hybrids. The aim of this study was to evaluate the agronomic potential and genetic dissimilarity of saladette type dwarf tomato plant populations through the use of artificial neural networks (ANNs). The following traits were analyzed: mean fruit weight, transverse and longitudinal fruit diameter, fruit shape, pulp thickness, locule number, internode length, soluble solids content, and β-carotene, lycopene, and leaf zingiberene contents. A dendrogram obtained by the unweighted pair-group method with arithmetic mean (UPGMA) and Kohonen self-organizing maps (SOM) agreed in the distinction of the BC1F3 populations from the dwarf donor parent. SOM was more consistent in identifying the genetic similarities among the BC1F3 dwarf tomato plant populations and allowed for the determination of weights of each variable in the cluster formation. The UFU SDi 13-1 BC1F3 population was revealed to be a promising option for obtaining saladette type dwarf tomato plant lines.
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