The role of Interleukin-1 genes in the association between chronic periodontitis
and atherosclerosis has been under debate. The purpose of this study is to compare the existence of
interleukin1 genes polymorphism in the chronic periodontitis subjects with and without atherosclerosis.
CpG islands play an important role in genes transcription regulation, due to the fact that these islands overlap with the genes’ promoter regions, and the methylation of those CpG islands may repress the transcription of the associated genes. Previou
s studies reported that
methylation of CpG islands is an important indicator of the presence and possibility of
developing cancers. There are mainly two types of algorithms to identify CpG islands in the nucleotides sequences: distance-based and sliding-window algorithms. The outputs of these algorithms are different for the same nucleotide sequence. The aim of this study is to compare the performance of the above mentioned algorithms by using two web tools named CpGCluster and newCpGReport.
CpG islands in human chromosome 22 were identified by applying the two algorithms on this chromosome, and the variation in the number and length of the identified islands was clear.
The results also show that about 60% of both tools’ output is crossed. Moreover, the effect of the traditional parameters of CpG islands (length, C+G content and Observed/expected ratio)
on the number of the identified islands was studied. The results show that the length parameter has a great effect on the number of islands identified by newCpGReport, while it does not affect CpGCluster’s performance. The effect of making CpG islands identified by
newCpGReport start and end with CpG was also studied, due to this operation C+G content and Observed/expected ratio increased for most islands, taking into account that 25% of the islands became shorter than 200 nucleotides.
This study aimed to evaluate the F1 non ripening tomato hybrids for yield
components and some other biological and morphological traits in the green
house.
This investigation included the comparesion of six tomato hybrids during
tow years (1999,
2000). Under the green-house conditions.
It has been found significant differences among the investigated hybrids
regarding to yield, plant hight, leaves number, flowers number, and the periods
from germination to flowering, germination to ripening, and flowering to
ripening, but, there was no any significant variation in fruits number and fruit
setting rate.
WI٢٢٩١ and Tadmor, two barley lines widely grown in the Mediterranean
region were tested for powdery mildew (Erysiphe graminis f. sp. hordei)
resistance together with the European differential tester set against six powdery
mildew isolates. The si
x cultures of powdery mildew developed from single
colonies were comprised of four powdery mildew isolates originating from Syrian barley lines and two cultures originating from Danish barley lines.