AI Article Synopsis
- Natural variations in traits can be studied using 341 individuals from 30 natural populations in the Pyrenees, which were collected across an altitudinal gradient of 200 to 1800 meters.
- Genetic relationships among these populations were analyzed using Class III peroxidases and ribosomal RNA sequences, revealing significant divergence from other regional populations in the 1001 genomes database.
- The study also found that these populations showed different phenotypic changes in response to varying temperatures, which can help in understanding plant acclimation and responses to climate change.
Article Abstract
Unlabelled: Natural variations help in identifying genetic mechanisms of morphologically and developmentally complex traits. Mountainous habitats provide an altitudinal gradient where one species encounters different abiotic conditions. We report the study of 341 individuals of derived from 30 natural populations not belonging to the 1001 genomes, collected at increasing altitudes, between 200 and 1800 m in the Pyrenees. Class III peroxidases and ribosomal RNA sequences were used as markers to determine the putative genetic relationships among these populations along their altitudinal gradient. Using Bayesian-based statistics and phylogenetic analyses, these Pyrenean populations appear with significant divergence from the other regional accessions from 1001 genome (i.e., from north Spain or south France). Individuals of these populations exhibited varying phenotypic changes, when grown at sub-optimal temperature (22 vs. 15°C). These phenotypic variations under controlled conditions reflected intraspecific morphological variations. This study could bring new information regarding the west European population structure of and its phenotypic variations at different temperatures. The integrative analysis combining genetic, phenotypic variation and environmental datasets is used to analyze the acclimation of population in response to temperature changes. Regarding their geographical proximity and environmental diversity, these populations represent a tool of choice for studying plant response to temperature variation.
Highlights: -Studying the natural diversity of in the Pyrenees mountains helps to understand European population structure and to evaluate the phenotypic trait variation in response to climate change.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6465555 | PMC |
| http://dx.doi.org/10.3389/fpls.2019.00430 | DOI Listing |
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