The variations knowledge of the cerebral arterial circle (CAC) is relevant due to its influence on development ischemic encephalic disorders. Among these variations, when external diameter posterior communicating artery exceeds caliber, we have a fetal conformation this circle. aim study was describe CAC in Chilean individuals and know type conformation. Thirty adult brains were used measure le...

iPBS retrotransposon markers, in other words, inter-primer binding site markers based on retrotransposon, have been helpful for the determination of genetic diversity several plants. The study was evaluated using 10 molecular level and structure alfalfa genotypes. A total 280 alleles 50 genotypes (48 local 2 commercial varieties) were obtained by 267 polymorphic with an average 28 per locus, ra...

Olive is one of the most important crops in Mediterranean Basin, because olive oil economic value and its role characterization rural landscape. The strong influence climatic changes on modern agriculture availability a large source genetic variability pose as crucial future challenges. Therefore, safeguarding resources becomes fundamental, not only cultivated forms ex situ collections, but als...

Abstract Understanding the spatial variation in species richness and mechanisms that limit range sizes along geographical gradients belong to central research issues macroecology. Here, we aim test topographic climatic effects on anuran community composition mountainous regions Brazilian Atlantic Forest biome. We used Individual‐Based Rarefaction Curve (interpolation extrapolation), Generalized...

the genetic diversity of 89 flue-cured tobacco varieties was examined using 12 issr primers. these cultivarswere evaluated at the guilan tobacco research center, rasht, iran, using a 7×7 simple lattice design with two replications, and 12 morphological traits. the total number of pcr amplified products was 143 bands ranging from 450 to 3000 bp, of which 108 bands (74.28%) were polymorphic. prim...

The main purpose of this study was to investigate the genetic diversity and population structure of Liza klunzingeri in two regions of the Persian Gulf. In this study, the amplified fragment length polymorphism (AFLP) was employed to analyze population genetic diversity between two populations (Ziyarat & Hendijan). Seven primer combinations (E-AAG/M-CTA, E-ACT/ M-CAA, E-ACT/ M-CTA, E-AAG/M-CTG,...

Cassava adaptation to climate change and its resistance diseases are essential prerequisites for achieving food security in sub-Saharan Africa. The accessions collected from farmers’ fields very important because they can provide new sources of genetic variability that achieve this goal. In study, a panel 184 Burkina Faso was genotyped using 36 single nucleotide polymorphism (SNP) markers. mark...

Liriodendron chinense (Hemsley) Sargent is a Class II protected plant in China as natural populations are on the verge of extinction. There still lack systematic research genetic resources its geographic populations. In this study, we used 20 pairs SSR markers with high polymorphism to analyze total 808 L. samples from 22 regions, and 63 tulipifera Linn 2 regions were comparison group. The resu...

BACKGROUND The variations of the circle of Willis (CW) are clinically important as patients with effective collateral circulations have a lower risk of transient ischemic attack and stroke than those with ineffective collaterals. The aim of the present cadaveric study was to investigate the anatomical variations of the CW and to compare the frequency of prevalence of the different variations wi...