Anatomical variability and population structure of Cucumis melo L. accessions collected from Iran
Author:
Ajalli Pedram1, Mohebalipour Nasser1, Nourafcan Hasan2, Hatami Maleki3, Faramarzi Ali1
Affiliation:
1. Department of Agronomy and Plant Breeding, Faculty of Agriculture, Miyaneh Branch, Islamic Azad University, Miyaneh, Iran 2. Department of Horticultural Sciences, Faculty of Agriculture, Miyaneh Branch, Islamic Azad University, Miyaneh, Iran 3. Department of Plant Production and Genetics, Faculty of Agriculture, University of Maragheh, Marageh, Iran
Abstract
Melon (Cucumis melo) is one of the most important cultivated cucurbits. In
this project, the genetic variability among 14 accessions of melon collected
by the authors has been studied using 23 anatomical characteristics across 2
consecutive years as well as 146 random amplified polymorphic DNA (RAPD)
markers. Combined analysis of variance revealed significant effects on
genotype and year ? genotype effects. Among examined anatomical characters,
the highest CV% values across two years belonged to fruit store at room
temperature (88.96%, 103.6%) and total fruit weight (42.2%, 40.00%), while
the lowest CV% values were observed in flower petal width (0.31%, 0.21%),
flower petal length (0.28%, 0.49%), and peduncle length (0.40%, 0.19%).
Classification of melon accessions based on anatomical characteristics using
the Ward method produced three groups. The highest Jaccard?s similarity
coefficient (0.76) was observed between accessions ?Atashi koluche? and
?Atashi miyaneh? and the lowest value (0.49) was found between accessions
?Bakermellon? and ?Mashhadi? with the mean value of 0.59. In this study,
OPA06 and OPB13 primers possessed greater efficiency in the genetic
evaluation of the studied germplasm. Analysis of population structure, which
imply on the existence of admixture in the studied melon germplasm,
revealing three subpopulations. Accession ?Sabzevari? identified as mixed
subgroups. From the breeder?s view, the introduced heterotic groups can be
utilized in parental selection for the construction of mapping population
and the identified population structure can prevent any false positive
output in marker-trait association studies of melon.
Publisher
National Library of Serbia
Subject
Plant Science,Genetics
Reference35 articles.
1. ABDEL-GHANI, A.H., A., MAHADEEN (2014): Genetic variation in snake melon (Cucumis melo var. flexuosus) populations from Jordan using morphological traits and RAPDs. Jordan J. Agric. Sci., 10:96-119. 2. ALI-SHTAYEH, M.S., R.M., JAMOUS, M.J., SHTAYAM, O.B., MALLAH, I.S., EID, S.Y., ABU ZAITOUN (2015): Morphological characterization of snake melon (Cucumis melo var. flexuosus) populations from Palestine and considerations. Crop Sci., 43:1235- 1248. 3. ANONYMOUS (2018): Statistics of horticultural crops. Deputy Minister of Planning and Economic Affairs of the Ministry of Jihad Agriculture. Iran. pp, 157. (In Persian). 4. BASIRNIA, A., H., HATAMI MALEKI, R., DARVISHZADEH, F., GHAVAMI (2014): Mixed linear model association mapping for low chloride accumulation rate in oriental-type tobacco (Nicotiana tabaccum L.) germplasm. J. Plant Interact., 9: 666-672. 5. BATES, D.M., R.W., ROBINSON (1995): Cucumber, melons and watermelons. In: Smartt JE, Simmonds NW. Evolution of Crop Plants, 2nd edn. Longman, London 2:89-96.
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