The use of some morphological traits for the assessment of genetic diversity in spinach (Spinacia oleracea L.) landraces
Asghar Ebadi-Segheloo
Moghan College of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabi Iran (Iran, Islamic Republic of)
Hossein ali Asadi-Gharneh
Department of Horticulture Science, Islamic Azad University, Khorasgan Branch, Isfahan, Iran (Iran, Islamic Republic of)
Mehdi Mohebodini
Department of Horticulture Science, Faculty of Agriculture, University of Mohaghegh Ardabili, Ardabi, Iran (Iran, Islamic Republic of)
Mohsen Janmohammadi
Dept. of Agronomy and Plant Breeding, Faculty of Agriculture, University of Maragheh, Maragheh, Iran (Iran, Islamic Republic of)
Mojtaba Nouraein
Dept. of Agronomy and Plant Breeding, Faculty of Agriculture, University of Maragheh, Maragheh, Iran (Iran, Islamic Republic of)
Naser Sabaghnia
sabaghnia@maragheh.ac.irDept. of Agronomy and Plant Breeding, Faculty of Agriculture, University of Maragheh, Maragheh, Iran (Iran, Islamic Republic of)
Abstract
Investigation of native accessions of spinach (Spinacia oleracea L.) would be aid in the development of new genetically improved varieties, so in this research 121 spinach landraces, collected from the various spinach growing areas of Iran, were evaluated to determine their diversity using several agro-morphological traits. High coefficients of variation (CV) were recorded in fresh yield, leaf area and dry yield. Using principal component (PC) analysis, the first three PCs with eigenvalues more than 0.9 contributed 80.56% of the variability among accessions. The first PC was related to leaf yield performance (fresh and dry yields, leaf numbers at flowering and lateral branches) while the PC2 was related to leaf characteristic (leaf width, petiole length, petiole diameter and leaf area). The third PC was related to seed characteristic (seed yield and 1000-seed weight) and was named as seed property component. The 121 spinach landraces were grouped into six clusters using cluster analysis. Each cluster had some specific characteristics of its own and the clusters I and II were clearly separated from clusters III and V and also from clusters IV and VI. The studied accessions are an important resource for the generation of a core collection of spinach in the world. The results of present research will support tasks of conservation and utilization of landraces in spinach breeding programs.
Keywords:
breeding, cluster analysis, diversity, landraces, principal component analysisReferences
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Authors
Asghar Ebadi-SeghelooMoghan College of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabi Iran Iran, Islamic Republic of
Authors
Hossein ali Asadi-GharnehDepartment of Horticulture Science, Islamic Azad University, Khorasgan Branch, Isfahan, Iran Iran, Islamic Republic of
Authors
Mehdi MohebodiniDepartment of Horticulture Science, Faculty of Agriculture, University of Mohaghegh Ardabili, Ardabi, Iran Iran, Islamic Republic of
Authors
Mohsen JanmohammadiDept. of Agronomy and Plant Breeding, Faculty of Agriculture, University of Maragheh, Maragheh, Iran Iran, Islamic Republic of
Authors
Mojtaba NouraeinDept. of Agronomy and Plant Breeding, Faculty of Agriculture, University of Maragheh, Maragheh, Iran Iran, Islamic Republic of
Authors
Naser Sabaghniasabaghnia@maragheh.ac.ir
Dept. of Agronomy and Plant Breeding, Faculty of Agriculture, University of Maragheh, Maragheh, Iran Iran, Islamic Republic of
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