نتایج جستجو برای: chromosome study
تعداد نتایج: 4058431 فیلتر نتایج به سال:
The tribe Sophoreae sensu Polhill [9,10] is a large and diverse assemblage comprising the ancient and primitive ancestral stocks of Papilionoideae. The most frequent chromosome basic numbers in this tribe are x = 11 and x = 9 but chromosome numbers range from x = 8-14 are also known. In this study chromosome numbers and karyotype variation of Iranian members of tribe Sophoreae are reported. Ira...
Genome-wide association studies are a powerful tool for searching for disease susceptibility loci. Several studies identifying single nucleotide polymorphisms (SNP) connected intimately to the onset of colorectal cancer (CRC) have been published, but there are few reports of genome-wide association studies in Japan. To identify genetic variants that modify the risk of CRC oncogenesis, especiall...
Abstract A karyotypic study was performed on 12 Iranian local onion (Allium cepa L.) populations. A number of mitotic cells at metaphase stage for each population were prepared. Chromosomes of suitable mitotic cells were counted and various parameters, including long arm (L), short arm (S), total length of chromosome (TL), relative length of chromosome (RL), arm ratio (AR), r-value, total chro...
We are reporting a case of 47 chromosome complement with an extra rearranged chromosome 22pter→22qll:: llq23 → llqter in a child with multiple malformations whose mother has a balanced reciprocal translocation t(1l,22) with a history of two previous abortions. We emphasize the importance of family study in such cases.
Genome-wide association studies (GWAS) have detected many disease associations. However, the reported variants tend to explain small fractions of risk, and there are doubts about issues such as the portability of findings over different ethnic groups or the relative roles of rare versus common variants in the genetic architecture of complex disease. Studying the degree of sharing of disease-ass...
Body weight (BW) and carcass traits are complex and important economic traits that may benefit from the implementation of MAS. The objective of the current study was to identify QTL associated with BW and carcass traits in an experimental half-sib cross of Japanese quails selected for BW at 4 weeks of age. Body weight and carcass traits were measured in the F2 population. Total F2 individuals a...
abstract to identify the species, understanding the characteristics of the species, explore the possibility of speciation, mutations in the study population, and many other purposes. in this method for studying colchesin bath, karyotype use for immature worms. after reviewing the slide karyotype of polychaeta (nereis sp.) and observation and analysis of 50 plaque metaphase plate chromosome nu...
background: cytogenetic analysis, y-chromosome microdeletion screening, fish techniques and other genetic methods have helped in finding the causes of infertility in azoospermic or severe oligoazoospermic cases in the last decade. objective: in the present study, we characterized an abnormal y-chromosome, detected as a mosaic in an azoospermic male ascertained for infertility. materials and met...
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