IIARD International Institute of Academic Research and Development

JOURNAL OF BIOLOGY AND GENETIC RESEARCH (JBGR )

E-ISSN 2545-5710
P-ISSN 2695-222X
VOL. 11 NO. 1 2025
DOI: 10.56201/jbgr.vol.11.no1.2025.pg19.43

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Genetic Variability Studies on Solanum Lycopersicum

Victor I. Ajie

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Abstract

Genetic variability is essential for improving crop species and forms the foundation of effective tomato breeding programs. Tomatoes exhibit extensive phenotypic and genotypic diversity across traits like fruit size, shape, color, yield, and stress resistance. This review synthesizes current research on tomato genetic variability, integrating traditional morphological assessments with advanced molecular tools like DNA markers, genome-wide association studies (GWAS), and transcriptomics. Statistical techniques such as variability coefficients, correlation analysis, and principal component analysis are highlighted for data interpretation. Modern technologies, including CRISPR-Cas9 and machine learning, are explored for their role in unlocking hidden genetic potential. By consolidating knowledge, the review emphasizes the importance of genetic variability in breeding high-yielding, stress-tolerant, and nutritionally enhanced tomatoes. It provides insights for developing sustainable production systems and addressing global challenges related to food security and climate change. This comprehensive analysis aims to guide future strategies in tomato improvement.

keywords:

Genetic variability, Solanum lycopersicum, tomato breeding, quantitative traits

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