Related Experiment Video
Updated: Oct 1, 2026

Exploring the Root Microbiome: Extracting Bacterial Community Data from the Soil, Rhizosphere, and Root Endosphere
Published on: May 2, 2018
Comparison of genetic diversity estimates within and among populations of maritime pine using chloroplast
M M Ribeiro1, S Mariette, G G Vendramin
1Unidade Departamental de Silvicultura e Recursos Naturais, Escola Superior Agrária, 6001-909 Castelo Branco, Portugal. mribeiro@esa.ipcb.pt
Abstract:
We compared the genetic variation of Pinus pinaster populations using amplified fragment length polymorphism (AFLP) and chloroplast simple-sequence repeat (cpSSR) loci. Populations' levels of diversity within groups were found to be similar with AFLPs, but not with cpSSRs. The high interlocus variance associated with the AFLP loci could account for the lack of differences in the former. Although AFLPs revealed much lower genetic diversity than cpSSRs, the levels of among-population differentiation found with the two types of marker were similar, provided that loci showing fewer than four null-homozygotes, in any population, were pruned from the AFLP data. Moreover, the French and Portuguese populations were clearly differentiated from each other, with both markers. The Mantel test showed that the genetic distance matrix calculated using the AFLP data was correlated with the matrix derived from the cpSSRs. Because of the concordance found between markers we conclude that gene flow was indeed the predominant force shaping nuclear and chloroplastic genetic variation of the populations within regions, at the geographical scale studied.
More Related Videos
10:23A Concoction Pipeline for Generating Molecular Operational Taxonomic Units (MOTUs) Among Riparian and Aquatic Beetles
Published on: July 11, 2025
12:05A Workflow for the Quantitative Assessment of the Endophytic and Epiphytic Bacterial Microbiomes of the Bark of Populus trichocarpa
Published on: June 27, 2025
Related Concept Videos
Evolutionary Relationships through Genome Comparisons
Modern Molecular Taxonomy
Gene Evolution - Fast or Slow?
In contrast, regions which code...
Microbial Phylogeny
Applications of Molecular Taxonomy
Phylogenetic Species Concept in Microbiology