Genetic Diversity Assessment of Spanish and Some Endangered Tunisian Pea (Pisum sativum L.) Accessions Based on Microsatellite Markers (SSRs) |
| |
Authors: | Amina Mohamed Santiago García-Martínez Pedro Carbonell Juan José Ruiz Mohamed Loumerem |
| |
Affiliation: | 1. Dryland and Oases Cropping Laboratory, Arid Land Institute, Street El Jorf, 4119 Medenine, Tunisia;2. Department of Applied Biology, Miguel Hernandez University, Carretera de Beniel, km 3.2, 03312 Orihuela Alicante, Spain |
| |
Abstract: | In the current investigation, 28 accessions of Spanish and Tunisian peas were characterized by eight SSR polymorphic markers to assess their genetic diversity. Many methods have been applied to evaluate these relationships including diversity indices, analysis of molecular variance, cluster analysis, and population structure. The means of diversity indices, the polymorphism information content (PIC), the allelic richness, and the Shannon information index were 0.51, 3.87, and 0.9, respectively. These results revealed a large polymorphism (84.15 %) which produced a higher degree of genetic distance amongst the accessions. The unweighted pair group approach with arithmetic mean divided the collection of these accessions into three major genetic clusters. Therefore, this article has clearly demonstrated the usefulness of the SSR markers that can significantly contribute to the management and conservation of pea germplasm in these countries, as well as to future reproduction. |
| |
Keywords: | pea SSR genetic diversity population structure |
|
|