Direct sequencing of polymerase chain reaction products is now an expanding area of plant systematics and evolution. Within angiosperms the rbcL gene has been widely sequenced and used for inferring plant phylogenies at higher taxonomic levels. Unfortunately rbcL does not usually contain enough information to resolve relationships between closely related genera, such as Hordeum, Triticum, and A...

In this work we study the effect of some electrical prosperities on synthetic rubber reinforced with carbon black diluted in heptanes with concentrations from 0.2% gm/mole to 2.0% gm/ mole in temperatures range (100, 150, 200, 250, 300) C associated with amount weight of black carbon 5wt% added to the diluted rubber. The results of electrical properties measurement of Buna rubber reinforced wit...

ةــصلاخلا : ُـي ةيساسلأا تاضارتفلاا نم ةلاحلا دادتملا يسدنهلا عيزوتلا ربتع ةراشلأل فوآرام ةجذمن ءادأ نم د ُّ حت يتلا ةيتوص لا . ة يعباتتلا ءاز جلأا جذو منأ نإ ف ،مو معلا ى لعو – تا يئزج كلذ آو ،ةيئاوش علا HMM ى لعو ، يف ةبوعص ةجرد يف ةدا يز ى لإ هرود ب يدؤ ي اً يئزج صقن لا اذ ه زواجتل ،صوصخلا روطلا د يدحتو بيرد ت . جذو من نمض توصلا تايئاصحلال يجيرد تلا ي نمزلا ر يغتلا جرد ن م ل ،ضار تفلاا اذ ه ى ل...

Waldsteinia is a small plant genus inhabiting the temperate regions of Northern Hemisphere. According to latest revisions, included in Geum. We have obtained phylogenetic reconstruction based on nuclear (ITS) and plastid (trnL-trnF) DNA understand structure its relationships with other taxa Geum s.l. Phylogenetic analysis joint ITS + trnL-trnF dataset demonstrated monophyly. The species were be...

The taxonomy and phylogeny of Asian Meconopsis (Himalayan blue poppy) remain largely unresolved. We used the internal transcribed spacer (ITS) region of nuclear ribosomal DNA (nrDNA) and the chloroplast DNA (cpDNA) trnL-F region for phylogenetic reconstruction of Meconopsis and its close relatives Papaver, Roemeria, and Stylomecon. We identified five main clades, which were well-supported in th...