First official record of naturalised populations of Solidago altissima L. var. pluricephala M.C. Johnst. (Asteraceae: Astereae) in Africa
نویسندگان
چکیده
منابع مشابه
Origins, distribution, and local co-occurrence of polyploid cytotypes in Solidago altissima (Asteraceae).
There is growing realization that intraspecific polyploidy in plants has important implications for the evolution of plant diversity and for plant and plant-herbivore community dynamics. Nonetheless, the rate at which polyploid cytotypes arise and their fate in local mixed-cytotype populations are not well understood. Although within- and especially among-population cytotype variation has been ...
متن کاملIsolation and characterization of microsatellite loci in the invasive herb Solidago altissima (Asteraceae)1
UNLABELLED PREMISE OF THE STUDY Microsatellite markers were developed in the perennial herb Solidago altissima from populations within its introduced range in Japan to assess its population structure and to facilitate tracking of invasion expansion. • METHODS AND RESULTS Using 454 pyrosequencing, 16 microsatellite primer sets were developed for S. altissima. The primer sets were tested on ...
متن کاملNutrient stress and gall flies interact to affect floral-sex ratio in gynomonoecious Solidago altissima (Asteraceae).
A main tenet of sex-allocation theory is that environmental stress should lead to increased maleness because reproducing through pollen is generally cheaper than producing fruits and seeds. Though this prediction has held for many species, it has been little tested for gynomonoecious plants, in which individuals produce both female and perfect flowers. We exposed eight ramets of each of 22 gene...
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چکیده یکی از مهمترین دغدغه های بزرگ جوامع بشری، از دیر باز تا کنون که ذهن پژوهشگران و متخصصان بهداشت روانی و اجتماعی و دولتها رابه خود مشغول داشته، مسأله ی بزهکاری می باشد. شناخت کامل پدیده ی بزهکاری و بزهکار، علل وعوامل سقوط یک انسان، چگونگی درمان وی و درنهایت پیشگیری ازبزهکاری ودریک کلام سالم سازی یک جامعه، رسالت عظیم، انسانی ومقدسی می باشد که با بررسی شخصیت مجرم یعنی[ انسانی که تحت شرای...
15 صفحه اولcalcium oxalate crystals in Conyza canadensis (l.) cronq. and Conyza bonariensis (l.) cronq. (Asteraceae: Astereae)
Calcium oxalate crystals (CaOx) are found in most organs and tissues of many plant species. In this study the morphology and distribution of CaOx crystals in Conyza canadensis (L.) Cronq. and Conyza bonariensis (L.) Cronq. belonging to Asteraceae were investigated. CaOx crystals display a similar distribution in organs and tissues of C. canadensis and C. bonariensis. For the identification of C...
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ژورنال
عنوان ژورنال: South African Journal of Botany
سال: 2016
ISSN: 0254-6299
DOI: 10.1016/j.sajb.2016.05.001