Contrasting patterns of nucleotide diversity for four conifers of Alpine European forests

A candidate gene approach was used to identify levels of nucleotide diversity and to identify genes departing from neutral expectations in coniferous species of the Alpine European forest. Twelve samples were collected from four species that dominate montane and subalpine forests throughout Europe:...

Full description

Saved in:
Bibliographic Details
Published in:Evolutionary applications 2012-11, Vol.5 (7), p.762-775
Main Authors: Mosca, Elena, Eckert, Andrew J., Liechty, John D., Wegrzyn, Jill L., La Porta, Nicola, Vendramin, Giovanni G., Neale, David B.
Format: Article
Language:English
Subjects:
Abies alba
Adaptation
Arabidopsis
Associations
candidate gene
Cell cycle
Chloroplasts
Climate change
Cold
Conifers
Forests
Gene expression
Genetics
Genomes
Genomics
Homology
Larix decidua
Molecular biology
Neutrality
neutrality tests
nucleotide diversity
Original
Phylogenetics
Pinus cembra
Pinus mugo
Pinus taeda
Polymorphism
Seeds
single nucleotide polymorphisms
Species
Subalpine environments
Trees
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A candidate gene approach was used to identify levels of nucleotide diversity and to identify genes departing from neutral expectations in coniferous species of the Alpine European forest. Twelve samples were collected from four species that dominate montane and subalpine forests throughout Europe: Abies alba Mill, Larix decidua Mill, Pinus cembra L., and Pinus mugo Turra. A total of 800 genes, originally resequenced in Pinus taeda L., were resequenced across 12 independent trees for each of the four species. Genes were assigned to two categories, candidate and control, defined through homology‐based searches to Arabidopsis. Estimates of nucleotide diversity per site varied greatly between polymorphic candidate genes (range: 0.0004–0.1295) and among species (range: 0.0024–0.0082), but were within the previously established ranges for conifers. Tests of neutrality using stringent significance thresholds, performed under the standard neutral model, revealed one to seven outlier loci for each species. Some of these outliers encode proteins that are involved with plant stress responses and form the basis for further evolutionary enquiries.
ISSN:1752-4571
1752-4571
DOI:10.1111/j.1752-4571.2012.00256.x