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Some like it hot: adaptation to the urban heat island in common dandelion.
Evol Lett
December 2024
Department of Terrestrial Ecology, Netherlands Institute of Ecology, Wageningen, The Netherlands.
The Urban Heat Island Effect (UHIE) is a globally consistent pressure on biological species living in cities. Adaptation to the UHIE may be necessary for urban wild flora to persist in cities, but experimental evidence is scarce. Here, we report evidence of adaptive evolution in a perennial plant species in response to the UHIE.
View Article and Find Full Text PDFFunctional dynamics analysis of endophytic microbial communities during Amorphophallus muelleri seed maturation.
Sci Rep
November 2024
College of Agronomy, Yunnan Key Laboratory of Konjac Biology, Yunnan Urban Agricultural Engineering and Technological Research Center, Kunming University, Kunming, 650214, China.
Article Synopsis
- Konjac seeds from Amorphophallus muelleri develop through a unique asexual reproduction process called apomixis and take about 8 months to mature.
- This study investigated how endophytic microbial communities change and adapt during the seed maturation process, finding significant differences in their functions between the seeds and seed coats.
- The research revealed that as seeds mature, certain microorganisms enhance seed resilience and adaptation by promoting the production of protective compounds like phenols and flavonoids, with major microbial groups identified being Proteobacteria, Actinobacteria, Ascomycota, and Basidiomycota.
Correcting for Replicated Genotypes May Introduce More Problems Than it Solves.
Mol Ecol Resour
October 2024
Institute for Biodiversity and Ecosystem Dynamics (IBED), University of Amsterdam, Amsterdam, Netherlands.
Across the tree of life, many organisms are able to reproduce clonally, via vegetative spread, budding or parthenogenesis. In population genetic analyses of clonally reproducing organisms, it is common practice to retain only a single representative per multilocus genotype. Though this practice of clone correction is widespread, the theoretical justification behind it has been very little studied.
View Article and Find Full Text PDFReproductive Performance of the Alpine Plant Species in a Climatic Elevation Gradient: Apomictic Tetraploids Do Not Show a General Fitness Advantage over Sexual Diploids.
Life (Basel)
September 2024
Department of Botany, Functional Plant Biology, University of Innsbruck, Sternwartestrasse 15, A-6020 Innsbruck, Austria.
Previous studies on the mountain plant concluded that apomictic self-compatible tetraploids have experienced a niche shift toward a colder climate during the Holocene, which suggests a fitness advantage over the sexual, self-sterile diploid parents under cold and stressful high-mountain conditions. However, there is still a lack of information on whether reproductive development would be advantageous for tetraploids. Here, we report on microsporogenesis, megagametogenesis, the dynamics of flower and seed development, and the consequences for reproductive success in a common garden experiment along a 1000 m climatic elevation gradient and in natural populations.
View Article and Find Full Text PDFConverging forms: an examination of sub-Arctic, circumarctic, and Central Asian agg. populations.
Front Plant Sci
June 2024
Department of Systematics, Biodiversity and Evolution of Plants (with herbarium), Albrecht-von-Haller Institute for Plant Sciences, University of Göttingen, Göttingen, Germany.
Introduction: Phenotypic complexity in species complexes and recently radiated lineages has resulted in a diversity of forms that have historically been classified into separate taxa. Increasingly, with the proliferation of high-throughput sequencing methods, additional layers of complexity have been recognized, such as frequent hybridization and reticulation, which may call into question the previous morphological groupings of closely related organisms.
Methods: We investigated Northern European, Asian, and Beringian populations of agg.
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