Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2023 Jan 4:13:1030309.
doi: 10.3389/fgene.2022.1030309. eCollection 2022.

Study of genetic variability, heritability, and genetic advance for yield-related traits in tomato (Solanum lycopersicon MILL.)

Adnan Rasheed  1   2   3 , Muhammad Ilyas  2 , Taj Naseeb Khan  3 , Athar Mahmood  4 , Usama Riaz  5 , Muhammad Bilal Chattha  6 , Najla Amin T Al Kashgry  7 , Najat Binothman  8 , Muhammad Umair Hassan  9 , Ziming Wu  1 , Sameer H Qari  10
Affiliations

Study of genetic variability, heritability, and genetic advance for yield-related traits in tomato (Solanum lycopersicon MILL.)

Adnan Rasheed et al. Front Genet. .

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.

Keywords: coefficient of variability; genetic advance; heritability; tomato; yield.

PubMed Disclaimer

Conflict of interest statement

The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

Figures

FIGURE 1
FIGURE 1
Pie chart represents the size of the value of DM (50%) for each parent and hybrid. Each segment in the pie chart represents a category.
FIGURE 2
FIGURE 2
Pie chart shows the different values of a given variable. Pie chart represents the size of the value of YP (kg) for each parent and hybrid.
FIGURE 3
FIGURE 3
Scatter biplot of different yield and yield-related traits of parents and hybrids. It shows that several variables are correlated with each other and several are not correlated.
FIGURE 4
FIGURE 4
Scree plot for 11 variables of parents and hybrids. It shows that the first four variables could be retained for PCA, while others can be disregarded.
FIGURE 5
FIGURE 5
Comparisons of the mean values of parents for 11 variables. A total of eight parents showed different ranges of values for 11 variables. The difference in values of traits among the parents indicated the scope of selection.
FIGURE 6
FIGURE 6
Comparisons of the mean values of hybrids for 11 variables. A total of 15 hybrids showed different ranges of values for 11 variables. The difference in values of traits among the hybrids indicated the scope of selection for varietal development.
See this image and copyright information in PMC

References

    1. Airoboman F. A., Onobhayedo A. O. (2022). An inquest into the impacts of population pressure on the natural environment and human society. KIU J. Humanit. 7, 211–218.
    1. Akhter M., Apon F. N., Bhuiyan M. M. R., Siddique A. B., Husna A., Zeba N. (2021). Genetic variability, correlation coefficient, path coefficient and principal component analysis in tomato (Solanum lycopersicum L.) genotypes. Plant Cell Biotech. Mol. Biol. 22, 46–59.
    1. Al-Araby A. (2021). Genetic variability, heritability, genetic advance, and correlation analysis in F2 segregating population of tomato (Solanum lycopersicum L.). Ann. Agric. Sci. Moshtohor 59, 225–232. 10.21608/assjm.2021.194267 - DOI
    1. Anuradha B., Saidaiah P., Ravinder Reddy K., Harikishan S., Geetha A. (2020). Genetic Variability, heritability and genetic advance for yield and yield attributes in tomato (Solanum lycopersicum L.). Int. J. Curr. Microbiol. Appl. Sci. 9, 2385–2391. 10.20546/ijcmas.2020.911.286 - DOI
    1. Azevedo S. M., De Souza D. C., Ossani P. C., Silva S., Souza C. H. D., De Oliveira A. S., et al. (2022). Agronomic variability among hybrids of tomato plant with emphasis on the multivariate analysis. Hortic. Bras. 40, 56–62. 10.1590/s0102-0536-20220107 - DOI

LinkOut - more resources