نتایج جستجو برای: asteraceae
تعداد نتایج: 6455 فیلتر نتایج به سال:
With over 20,000 species, Asteraceae is the second largest plant family. High-throughput sequencing of nuclear and chloroplast genomes has allowed for a better understanding of the evolutionary relationships within large plant families. Here, the globe artichoke chloroplast (cp) genome was obtained by a combination of whole-genome and BAC clone high-throughput sequencing. The artichoke cp genom...
A new species of eriophyoid mite, Aceria utzkae n. sp., inhabiting Carlina acanthifolia subsp. utzka (Hacq.) Meusel & Kästner (Asteraceae) is described and illustrated. It is compared with Aceria carlinae (Nalepa), the only other species known to inhabit Carlina spp., and a differential diagnosis is provided. Both species are recorded from Serbia for the first time and a new host plant, Carlina...
Until now, twenty-seven Asteraceae complete chloroplast genomes were uncovered in the Gene bank. The highly conservative nature and slow evolutionary rate of the chloroplast genome demonstrated that it was uniform enough to perform comparative studies across different species but divergent sufficiently to capture evolutionary events, which makes it a suitable and invaluable tool or molecular ph...
Biodiversity results from multiple evolutionary mechanisms, including genetic variation and natural selection. Whole-genome duplications (WGDs), or polyploidizations, provide opportunities for large-scale genetic modifications. Many evolutionarily successful lineages, including angiosperms and vertebrates, are ancient polyploids, suggesting that WGDs are a driving force in evolution. However, t...
s. Albuquerque, New Mexico, August 12-16, 2001. Botanical Society of America. Pp. 132. Panero, J.L., Baldwin, B.G., Schilling, E.E. & Clevinger, J.A. 2001c. Molecular phylogenetic studies of members of tribes Helenieae, Heliantheae, and Eupatorieae (Asteraceae). 3. General systematics and proposed taxonomic changes in current classification. In: Botany 2001 Abstracts. Albuquerque, New Mexico, A...
Eucalypt plantations expand rapidly out of their natural distribution zones, thus inducing a concern on their effects on biodiversity and ecosystem functions. We compare the understory plant diversity of 46 plots of eucalypt plantations, including early and later stages in rotation, with that of 21 plots of contrast vegetation, including other types of plantations and secondary shrub grassland,...
BACKGROUND Artemisia frigida Willd. is an important Mongolian traditional medicinal plant with pharmacological functions of stanch and detumescence. However, there is little sequence and genomic information available for Artemisia frigida, which makes phylogenetic identification, evolutionary studies, and genetic improvement of its value very difficult. We report the complete chloroplast genome...
Homologs of the CYC/TB1 gene family have been independently recruited many times across the eudicots to control aspects of floral symmetry The family Asteraceae exhibits the largest known diversification in this gene paralog family accompanied by a parallel morphological floral richness in its specialized head-like inflorescence. In Asteraceae, whether or not CYC/TB1 gene floral symmetry functi...
New Flavonoids from the Exudate of Baccharis bigelovii (Asteraceae) Francisco J. Arriaga-Giner Departamento de Qui'mica Orgänica, Universidad A utönom a de Madrid, Madrid, Spain Eckhard Wollenweber, Dagmar Hradetzky Institut für Botanik der Technischen Hochschule Darmstadt, Bundesrepublik Deutschland Z. Naturforsch. 41c, 946—948 (1986); received June 4, 1986 Baccharis bigelovii (Asteraceae), Le...
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