Data on the the molecular and quantitative genetic variation within and between populations of the declining grassland species Saxifraga granulata

Name: Data on the the molecular and quantitative genetic variation within and between populations of the declining grassland species Saxifraga granulata
Creator: Musée national d'histoire naturelle Luxembourg
License: https://creativecommons.org/publicdomain/zero/1.0/
Keywords: climatic-distances,diversifying-selection,evolutionary-potential,evolvability,formerly-common-species,genetic-drift,heritability,isolation-by-distance,molecular-genetic-variation,pairwise-qst,qst-vs-fst,quantitative-genetic-variation,recent-fragmentation,saxifraga-granulata

Description

Data files of molecular RAPD profiles and quantitative (morphological) traits of Saxifraga granulata populations

Producer

Musée national d'histoire naturelle Luxembourg

Latest update

January 20, 2026

License

Creative Commons Zero (CC0)

Metadata quality

56.0%

Update frequency not set

Temporal coverage not set

Spatial coverage not set

1 Main file

Molecular and quantitative genetic variation within and between populations of the declining grassland species Saxifraga granulata

Updated on January 20, 2026

doi

0 downloads

URL: https://datadryad.org/dataset/doi:10.5061/dryad.b8gtht7g5
Permalink: https://data.public.lu/en/datasets/r/3e8ab289-cec6-4ba4-ac3d-c47aac899d0f
MIME Type: None

Created on: January 20, 2026
Modified on: January 20, 2026

Dataset used for a study on molecular and quantitative genetic variation within and between populations of the declining grassland species.

Abstract of article: Formerly common plant species are expected to be particularly susceptible to recent habitat fragmentation. We studied the population genetics of 19 recently fragmented Saxifraga granulata populations (max. distance 61 km) in Luxembourg and neighbouring Germany using RAPD markers and a common garden experiment. We assessed (1) the relationships between plant fitness, quantitative genetic variation, molecular genetic variation and population size, and (2) the relative importance of genetic drift and selection in shaping genetic variation. Molecular genetic diversity was high but did not correlate with population size, habitat conditions or with plant performance. Genetic differentiation was low (FST = 0.079 ± 0.135) and there was no isolation by distance. Longevity, clonality and the long-lived seed bank of S. granulata may have prevented strong genetic erosion and genetic differentiation among populations. However, genetic distinctness increased with decreasing genetic diversity indicating that random genetic drift occurred in the studied populations. Quantitative and molecular genetic variation were correlated and their differentiation (QST vs. FST) among S. granulata populations was similar, suggesting that mainly random processes have shaped the quantitative genetic differentiation among populations. However, pairwise quantitative genetic distances increased with geographic and climatic distances, even when adjusted for molecular genetic distances, indicating diversifying selection. Our results indicate that long-lived clonal species may be buffered at least temporarily against the negative effects of fragmentation. The relationship between quantitative genetic and geographic distance may be a more sensitive indicator of selection than QST - FST differences.

1 Reuse

Add a reuse

Molecular and quantitative genetic variation within…

Paper

Published on January 20, 2026 by Musée national d'histoire naturelle Luxembourg

There are no discussions for this dataset yet.

There are no community resources for this dataset yet.

Share your resources Learn more about the community

Information

License

Creative Commons Zero (CC0)

ID

696f4918aa2d482996d682a2

Temporality

Creation

January 20, 2026

Frequency

Unknown

Latest update

January 20, 2026

Actions

Embed

<div data-udata-dataset="696f4918aa2d482996d682a2"></div><script  src="https://data.public.lu/static/oembed.js" async defer></script>

The luxembourgish open data platform

Data on the the molecular and quantitative genetic variation within and between populations of the declining grassland species Saxifraga granulata

Description

Producer

Latest update

License

Metadata quality:

Metadata quality

1 Reuse

Molecular and quantitative genetic variation within…

Information

Tags

License

ID

Temporality

Creation

Frequency

Latest update

Actions

Embed

Subscribe to our newsletter