Rhizobium laguerreae is the main nitrogen-fixing symbiont of cultivated lentil (Lens culinaris) in Morocco
| Autor: | Samia Dekkiche, Jamal Aurag, Imane El Attar, El Bekkay Berraho, Gilles Béna, Kaoutar Taha |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
DNA
Bacterial 0301 basic medicine Lens culinaris Population structure Applied Microbiology and Biotechnology Microbiology Rhizobia 03 medical and health sciences Symbiosis Nitrogen Fixation RNA Ribosomal 16S Genetic variation Botany Phylogeny Ecology Evolution Behavior and Systematics Rhizobium laguerreae Genetic diversity biology Genetic Variation food and beverages Sequence Analysis DNA biology.organism_classification Recombination Bacterial Typing Techniques Housekeeping gene Morocco Genetics Population 030104 developmental biology Genes Bacterial Molecular phylogenetics Nitrogen fixation Rhizobium Lens Plant Root Nodules Plant |
| Popis: | Genetic diversity and population structure of 268 Lens culinaris symbiotic rhizobia collected from 40 cultivated fields in the main lentil production regions in Morocco were estimated. Three chromosomal housekeeping genes (recA, glnII and atpD) and one common symbiotic gene (nodC) were sequenced and analyzed in order to identify the local symbionts of lentil. The molecular phylogeny of the concatenated housekeeping genes clustered more than 95% of the isolates in one main clade together with Rhizobium laguerreae species. R. laguerreae represents the main symbiont of cultivated lentil in Morocco and, for the first time, a large sample of individuals is obtained for this species. There is a significant and high genetic differentiation of bacterial populations among the four regions for their symbiotic gene, and much lower for their housekeeping genes. The reasons why R. laguerreae is so frequently recovered in our study is discussed. |
| Databáze: | OpenAIRE |
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