AI Article Synopsis
- Genetic connectivity between plant populations is crucial for gene exchange, which supports their survival in changing environments.
- Historical gene flow was found to be high in two alpine herbs, Ranunculus bulbosus and Trifolium montanum, suggesting strong genetic ties across different meadows.
- Contemporary pollen flow is significant, especially in T. montanum, and is less affected by differences in flowering times compared to R. bulbosus, which may help both species adapt to rapid climate changes.
Article Abstract
Background And Aims: Genetic connectivity between plant populations allows for exchange and dispersal of adaptive genes, which can facilitate plant population persistence particularly in rapidly changing environments.
Methods: Patterns of historic gene flow, flowering phenology and contemporary pollen flow were investigated in two common herbs, Ranunculus bulbosus and Trifolium montanum, along an altitudinal gradient of 1200-1800 m a.s.l. over a distance of 1 km among five alpine meadows in Switzerland.
Key Results: Historic gene flow was extensive, as revealed by Fst values of 0·01 and 0·007 in R. bulbosus and T. montanum, respectively, by similar levels of allelic richness among meadows and by the grouping of all individuals into one genetic cluster. Our data suggest contemporary pollen flow is not limited across altitudes in either species but is more pronounced in T. montanum, as indicated by the differential decay of among-sibships correlated paternity with increasing spatial distance. Flowering phenology among meadows was not a barrier to pollen flow in T. montanum, as the large overlap between meadow pairs was consistent with the extensive pollen flow. The smaller flowering overlap among R. bulbosus meadows might explain the slightly more limited pollen flow detected.
Conclusions: High levels of pollen flow among altitudes in both R. bulbosus and T. montanum should facilitate exchange of genes which may enhance adaptive responses to rapid climate change.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3605955 | PMC |
| http://dx.doi.org/10.1093/aob/mct021 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Plastome characterization and its phylogenetic implications on Lithocarpus (Fagaceae).
BMC Plant Biol
December 2024
Yunnan Key Laboratory of Plant Reproductive Adaptation and Evolutionary Ecology, Institute of Biodiversity, School of Ecology and Environmental Science, Yunnan University, Kunming, 650500, China.
Background: The genus Lithocarpus is a species-rich dominant woody lineage in East Asian evergreen broad-leaved forests. Despite its ecological and economic significance, the plastome structure and evolutionary history of the genus remain poorly understood. In this study, we comprehensively analyzed the 34 plastomes representing 33 Lithocarpus species.
View Article and Find Full Text PDFAn Analysis of Longan Honey from Taiwan and Thailand Using Flow Cytometry and Physicochemical Analysis.
Foods
November 2024
Department of Tropical Agriculture and International Cooperation, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan.
The increase in honey fraud in the global market has highlighted the importance of pollen analysis in determining or confirming the botanical and geographical origins of honey. Numerous studies are currently underway to develop efficient and rapid methods for the determination of the quality, botanical, and geographical origin of honey. Typically, the physicochemical analysis of honey is used to evaluate its quality and geographical source.
View Article and Find Full Text PDFPollinator functional group abundance and floral heterogeneity in an agroecological context affect mating patterns in a self-incompatible wild plant.
Am J Bot
December 2024
Agroécologie, INRAE, Institut Agro, Université Bourgogne, Université Bourgogne Franche-Comté, Dijon, F-21000, France.
Premise: Restoration of seminatural field margins can elevate pollinator activity. However, how they support wild plant gene flow through interactions between pollinators and spatiotemporal gradients in floral resources remains largely unknown.
Methods: Using a farm-scale experiment, we tested how mating outcomes (expected heterozygosity and paternity correlation) of the wild, self-incompatible plant Cyanus segetum transplanted into field margins (sown wildflower or grass-legume strips) were affected by the abundance of different pollinator functional groups (defined by species traits).
Genetic characteristics of the diploid offsprings in potato Cooperation 88 induced by diploid donor IVP101.
Front Plant Sci
November 2024
Yunnan Key Laboratory of Potato Biology, Yunnan Normal University, Kunming, China.
Article Synopsis
- Diploid lines from tetraploid potato cultivars were hybridized with wild diploid species, resulting in fertile offsprings, with the pollen of Group Phureja (e.g., IVP101) commonly used to facilitate this hybridization.
- The study created a hybrid population between the tetraploid cultivar Cooperation 88 (C88) and IVP101, analyzing 43 diploid offsprings for genetic composition using flow cytometry and ploidyNGS.
- Findings showed that all diploids shared chloroplast sequences from C88, indicating no paternal chloroplast inheritance, while SNP analysis revealed that nuclear genes from the inducer (IVP101) contributed to traits like purple stems in the offspr
The reproductive strategy of a typical distylous (Rubiaceae), in fragmented habitat.
Front Plant Sci
November 2024
Key Laboratory of National Forestry and Grassland Administration on Biodiversity Conservation in Karst Mountainous Areas of Southwestern China, College of Life Science, Guizhou Normal University, Guiyang, China.
Article Synopsis
- Heterostyly is a genetic variation in plants that enhances cross-pollination and reproductive success, with this study focusing on its occurrence in distylous species in fragmented karst habitats.
- The research involved measuring floral traits and analyzing secondary metabolites in different flower morphs, alongside various pollination experiments to assess fruit production and pollen behavior.
- Results showed that intermorph outcrossing led to the highest fruit set, with unique adaptations in both flower morphs, contributing to the species' reproductive sustainability in disturbed environments.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!