Middle-East Journal of Scientific Research 23 (5): 856-860, 2015
ISSN 1990-9233
© IDOSI Publications, 2015
DOI: 10.5829/idosi.mejsr.2015.23.05.9375
Corresponding Author: Sohail Ahmad Jan, Department of Biotechnology, Quaid-i-Azam University, Islamabad, Pakistan.
856
Agro-Morphological and Molecular Characterization of
Local Tomato Cultivars Grown in Pakhal Region of
Pakistan Using RAPD Markers
Samia Nawaz, Zubeda Chaudry, Ayesha Bibi, Sohail Ahmad Jan and Khatiba Bibi
1 1 2 3 2
Department of Botany, Hazara University DhodialMansehra, Pakistan
1
Department of Genetics, Hazara University DhodialMansehra, Pakistan
2
Department of Biotechnology, Quaid-i-Azam University, Islamabad, Pakistan
3
Abstract: Tomato is a very important dietary vegetable crop. Like any other crop species, improvement in
tomato for quality and quantity of fruit has always been on the top of scientific breeding programs. Pakhal is
an important region in Pakistan for tomato production but problem lies with the proper available cultivars for
the area as farmers use different sources to get seed which result in variable per acre production. The studies
were carried out to select the best genotype for this area. For this purpose different varieties from the local
farmer’s field were collected. Genomic DNA was extracted from 3 weeks old plants and PCR study was
performed for Randomly Amplified Polymorphic DNA(RAPD) analysis from 13 genotypes (from Pakhal region)
were used for morphological and DNA based fingerprinting. The fruit shape showed largest variation with three
types (round, ovate and pear-shaped) among all tested genotypes. A total of 10 different RAPD primers were
used for screening of diverse tomato genotypes. Six out of eleven morphological traits showed maximum
diversity. A total of thirty-five reproducible and scorable amplification products were generated out of which
23 (65.7%) fragments were polymorphic with 10 RAPD primers. With an average of 5 bands per primer the
highest level of polymorphism was detected with primer OPA-18 (83%) whereas primer OPA-05 detected the
least polymorphism (25%). It was found that F1 Hybrid and Rio USA accessions were much related to each
other. The present study is useful for the selection of improved tomato genotypes for maximum yield
production.
Key words: Genetic Variation Randomly Amplified Polymorphic DNA Tomato
INTRODUCTION produces about 0.3 million tons of tomato annually.
Tomato (Solanumlycopersicum L.), originated from production. Parachanar, Pakhal and Battal valley are major
South America is nowadays one of the significant tomato growing areas of KP. Tomato crop has a
vegetable crops of special economic importance and tremendous export potential due to its demand in the
widely grown plant in Solanaceaefamily. Botanically, it is international market [3]. Bulging population demands
a fruit and horticulturally it is a vegetable [1]. Tomato increase in the production of tomatoes, which can be met
plays an important role in human nutrition by providing by increasing per unit production. Tomato cultivars are
essential amino acids, vitamins and minerals. Its vitamin much sensitive to hot climate, is one of the limitations in
C content is particularly high. It also contains carotenes optimum production of summer tomato crop in plains of
andlycopene, a very potent antioxidant that may be an Naz et al. [4]. Like any other crop species, improvement in
important contributor to prevention of cell cancers [2]. tomato for quality and quantity of fruit has always been
Other than fresh fruit consumption, processed forms as on the top of scientific breeding programs. The processes
canned tomatoes, ketchup and variety of sauces, juice, of domestication and artificial selection contributed to the
soups, paste and powder are equally popular. Pakistan depletion of genetic diversity in tomato. A chance of
Khyber Pakhtunkhwa (KP) produces 30% of tomato