Publications by authors named "P O Fritsch"
While flowering plants have diversified in virtually every terrestrial clime, climate constrains the distribution of individual lineages. Overcoming climatic constraints may be associated with diverse evolutionary phenomena including whole genome duplication (WGD), gene-tree conflict, and life-history changes. Climatic shifts may also have facilitated increases in flowering plant diversification rates.
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- - Vaccinieae is a diverse group within the Ericaceae family, consisting of about 1430 species, primarily tropical, but well-known for temperate crops like blueberries and cranberries.
- - A phylogenomic study of 210 species revealed that Vaccinieae likely originated in temperate North America around 30 million years ago, with tropical species resulting from multiple migrations from these northern ancestors.
- - Findings indicate significant evolutionary events, including a unique ovary structure development and a major polyploid event, suggesting that Vaccinium's classification needs reevaluation due to its complex evolutionary history.
Background: The influence of native secondary succession associated with anthropogenic disturbance on the biodiversity of the forests in subtropical China remains uncertain. In particular, the evolutionary response of small understory shrubs, particularly pioneer species inhabiting continuously disturbed habitats, to topographic heterogeneity and climate change is poorly understood. This study aimed to address this knowledge gap by focusing on the Gaultheria crenulata group, a clade of small pioneer shrubs in subtropical China.
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- The study focuses on how biogeographic dispersal has impacted plant diversity in the Himalaya-Hengduan Mountains, specifically examining the alpine clade Gaultheria ser. Trichophyllae.
- Through phylogenetic analysis, researchers analyzed dispersal patterns, revealing a trend of eastward dispersals within regions and westward dispersals between regions, influenced by climatic changes over time.
- The findings suggest that the timing of these dispersals, especially during glacial and interglacial periods, plays a crucial role in shaping the current species richness of G. ser. Trichophyllae.
Background: Childhood cancer survivors are at increased risk of developing cardiovascular diseases, presenting as the main causes of morbidity and mortality within this group. Besides the usual primary and secondary prevention in combination with screening during follow-up, the modifiable lifestyle factors of physical activity, nutrition, and body weight have not yet gained enough attention regarding potential cardiovascular risk reduction.
Objective: These practical recommendations aim to provide summarised information and practical implications to paediatricians and health professionals treating childhood cancer survivors to reduce the risk of cardiovascular late effects.