Search results for " SSRs"

showing 3 items of 3 documents

Estimating the genetic diversity and structure ofQuercus trojanaWebb populations in Italy by SSRs: implications for management and conservation

2017

Studying the genetic diversity and structure of the current forest populations is essential for evaluating the ability to survive to future biotic and abiotic changes and planning conservation strategies. Quercus trojana is an eastern Mediterranean tree species with a fragmented distribution range, and its westernmost outposts are located in southern Italy. The demand for timber and cropland over the centuries has severely reduced it s occurrence in this part of the range. We assessed the genetic diversity and structure of the extant Italian populations of Q. trojana and derived conservation guidelines. A total of 322 samples were genotyped with six polymorphic nuclear microsatellite marker…

0106 biological sciences0301 basic medicineSettore AGR/05 - Assestamento Forestale E SelvicolturaQuercus trojana Genetic diversity Population structure SSRs markers ConservationQuercus trojanaRange (biology)PopulationConservationPopulation structure010603 evolutionary biology01 natural sciencesGenetic diversity03 medical and health sciencesQuercus trojanaeducationAbiotic componentQuercus trojana diversité génétique structure de populations marqueurs SSRs conservationGlobal and Planetary ChangeGenetic diversityeducation.field_of_studySSRs markersEcologybiologyEcologyForestrybiology.organism_classification030104 developmental biologyMicrosatelliteGene poolSpecies richnessCanadian Journal of Forest Research
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Mitochondrial simple sequenze repeats and 12s – rRNA gene reveal two distinct lineages of Crocidura russula (Mammalia, Sorcidae)

2004

A short segment (135 bp) of the control region and a partial sequence (394 bp) of the 12S-rRNA gene in the mitochondrial DNA of Crocidura russula were analyzed in order to test a previous hypothesis regarding the presence of a gene flow disruption in northern Africa. This breakpoint would have separated northeast-African C. russula populations from the European (plus the northwest-African) populations. The analysis was carried out on specimens from Tunisia (C. r. cf agilis), Sardinia (C. r. ichnusae), and Pantelleria (C. r. cossyrensis), and on C. r. russula from Spain and Belgium. Two C. russula lineages were identified; they both shared R2 tandem repeated motifs of the same length (12 bp)…

Mitochondrial DNARange (biology)Lineage (evolution)Crocidura russulaMolecular Sequence DataMtDNASettore BIO/05 - ZoologiaDNA MitochondrialMonophylyAfrica NorthernPhylogeneticsSequence Homology Nucleic AcidGeneticsAnimals12S-rRNA; Crocidura russula; MtDNA; North Africa; SSRs; ZoogeographyGenetics (clinical)PhylogenybiologyBase SequenceEcology12S-rRNAShrewsGenes rRNAbiology.organism_classificationNorth AfricaCrocidura russulaSSRRussulaMitochondriaEuropeGenetics PopulationSister groupEvolutionary biologyRNA RibosomalZoogeographySequence AlignmentSequence AnalysisMicrosatellite Repeats
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Genetic Diversity of Major Olive Varieties from Southern Tunisia

2013

Considering the importance of olive-growing in Tunisia, microsatellite (SSR) analysis was used to study the genetic variation among twenty olive accessions from southern Tunisia. This set of olive microsatellites showed potential utility for genetic studies and it could contribute to the development of strategies for Tunisian germplasm conservation and breeding. Unweighted pair group method cluster analysis was performed and cultivars separated in three main groups. Five polymorphic simple sequence repeats (SSR) loci were employed and they revealed 38 alleles with a mean number of 7.6 alleles per locus. Genetic variability was wide as indicated by high values of both observed heterozygosity…

Settore AGR/03 - Arboricoltura Generale E Coltivazioni ArboreeGenetic Characterization Olea europaea Olive SSRs
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