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Distribution of Tunisian beet wild relatives ( sp.) according to morphological characteristics and eco-geographical origin.
Heliyon
January 2025
Laboratory of Plant Protection, National Institute of Agronomic Research of Tunisia, University of Carthage, Rue Hedi Karray, 2049, El-Menzah, Tunisia.
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View Article and Find Full Text PDFFunctional innovation through new genes as a general evolutionary process.
Nat Genet
January 2025
Department of Ecology and Evolution, The University of Chicago, Chicago, IL, USA.
In the past decade, our understanding of how new genes originate in diverse organisms has advanced substantially, and more than a dozen molecular mechanisms for generating initial gene structures were identified, in addition to gene duplication. These new genes have been found to integrate into and modify pre-existing gene networks primarily through mutation and selection, revealing new patterns and rules with stable origination rates across various organisms. This progress has challenged the prevailing belief that new proteins evolve from pre-existing genes, as new genes may arise de novo from noncoding DNA sequences in many organisms, with high rates observed in flowering plants.
View Article and Find Full Text PDFPowdery Mildew of Caused by in China.
Plant Dis
January 2025
Henan Normal University, College of Life Sciences, Xinxiang, Xinxiang, Henan, China, 453007.
Echinacea purpurea (Eastern Purple Coneflower) is a perennial herbaceous plant belonging to the Asteraceae. It originated from North America and is cultivated all over the world. Extracts of E.
View Article and Find Full Text PDFThe emergence of East Asian spring ephemerals and the unique ecosystem can be attributed primarily to vicariance, brought about by the Quaternary rifting of the Okinawa Trough, the formation of the East China Sea, and the isolation of the island chains of Ryukyu, Japan, and Taiwan from the Asian continent. The northern forests of Japan, dominated by and the associated , present a captivating display of spring-flowering ephemerals, including , , , and . Among these, is also considered part of the spring ephemerals.
View Article and Find Full Text PDF (Labiatae), a new high-mountain Mediterranean species from the marble outcrops of the Sierra de Guadarrama (Central System, Madrid, Segovia, Spain).
PhytoKeys
January 2025
Botany Unit, Pharmacy Building, University Complutense of Madrid, E-28040 Madrid, Spain University Complutense of Madrid Madrid Spain.
A new species of () is described from the calcareous, high-mountain Spanish flora in the central part of the Iberian Peninsula. It is found in a Mediterranean climate at high-elevation, perennial, calcareous grasslands, as well as in marble screes of anthropogenic origin in the Sierra de Guadarrama, Central System (Spain), in a reserve area within the Sierra de Guadarrama National Park, at 1996 m asl. Taxonomic morphological measurements were performed on collected specimens from Sierra de Guadarrama as well as on geographically-adjacent (i.
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