نتایج جستجو برای: infrageneric taxa
تعداد نتایج: 30871 فیلتر نتایج به سال:
Seed proteins of eight species of the genus Suaeda (Chenopodiaceae) were compared by means of polyacrylamide disc gel electrophoresis. Different samples of the same species showed not less than 89% similarities, and geographical separation had no remarkable effect on seed protein patterns of the same species. Morphological heterogenity, that creates difficulties in infrageneric classificat...
The purpose of this study was to assess the phylogenetic utility of a large insertion (3 bp) in the 5.8S gene of nuclear ribosomal DNA (nrDNA) in Cyperaceae and selected Juncaceae. This was done by reconstructing the character evolution of the insertion on a phylogeny derived from rbcL sequences. Results suggest that the insertion was gained once at the base of Cyperaceae followed by multiple l...
Scutellaria is one of the largest genera in Lamiaceae with an estimated 400–500 species a nearly worldwide distribution. Most occur N hemisphere, Caucasus and wider Irano-Turanian region housing large number taxa, many them considered endemic. We present overall phylogeny monophyletic genus based on rapidly evolving plastid regions (matK-trnK, rpl16, trnL-F). Three well-supported clades are evi...
The West-Palearctic region is a diversity hotspot for the ant genus Aphaenogaster . Species in this are characterized by high morphological variation, which has led to their subdivisioninto different infrageneric groups. very first classification three subgenera, dated 1915, was gradually replaced eight species-groups. To probe evolutionary consistency of these species-groups, we sequenced 46 s...
Elaphomyces ('deer truffles') is one of the most important ectomycorrhizal fungal genera in temperate and subarctic forest ecosystems, but also one of the least documented in public databases. The current systematics are mainly based on macromorphology, and is not significantly different from that proposed by Vittadini (1831). Within the 49 species recognised worldwide, 23 were originally descr...
Chestnut-leaved oak (Quercus castaneifolia C. A. Mey) is one of the most important native oaks of Iran distributed in the Hyrcanian Forests. The pure and mixed stands of it cover about 6.5% of these forests. The species represents morphological variations which have resulted in the description of several infraspecific taxa by different authors. Eight taxa were recognized as subspecies and varie...
Willows (Salix: Salicaceae) form a major ecological component of Holarctic floras and consequently are an obvious target for a DNA-based identification system. We surveyed two to seven plastid genome regions (~3.8 kb; ~3% of the genome) from 71 Salix species across all five subgenera, to assess their performance as DNA barcode markers. Although Salix has a relatively high level of interspecific...
In the framework of study on wood inhabiting Hyphomycetes inChalus vicinity, Mazandaran (Iran), during 2005-2006, 21 taxa belonging to different genera were identified. Among them, nine taxa have already been recorded from Iran and the other taxa are new to Iran which are listed as follows: Arthrobotryum stilboideum, Chloridium preussi, C. virescens var. virescens, Codinaeopsis gonytrichoides, ...
Scorpions of the genus ButhacusBirula, 1908 (Buthidae C.L. Koch, 1837), commonly known as “sand scorpions,” are widespread in sandy deserts Palearctic, from West Africa to India. Although many new species Buthacus were described recent years, no modern revision exists for and limits infrageneric taxa remain unclear. The present contribution addresses recorded Levant, defined here region Middle ...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید