Abstract Background Thinopyrum intermedium (2n = 6x 42) is an important wild perennial Triticeae species exhibiting many potentially favorable traits for wheat improvement. Wheat- Th . partial amphiploids serve as a bridge to transfer desirable genes from into common wheat. Results Three octoploid Trititrigia accessions (TE261–1, TE266–1, and TE346–1) with good resistances stripe rust, powdery ...

The eukaryotic genome is made up of DNA/protein complexes called chromosomes. Despite the compaction of the DNA (deoxyribonucleic acid) with proteins, gene sequences embedded within chromosomes must still be available for transcription by RNA (ribonucleic acid) polymerases and all of the DNA must be capable of being copied by DNA polymerases. Chromosomes have two main functions: to ensure that ...

to identify qtls controlling grain yield and yield components, an f2 population consisting of 188 plants derived from the cross between two rice pure lines, binam and kadous, were grown in research field of faculty of agricultural sciences, university of guilan, rasht, iran, in 2008, and were recorded for 9 important traits related to grain yield. to construct linkage map, 85 marker of ssrs and...

The Hypostomini tribe comprises a single genus, Hypostomus, which possibly contains several monophyletic groups because of significant morphological variation and variety diploid numbers karyotype formulas. objective this study was to infer evolutionary relationships among 21 species Hypostomus found in Brazilian southeast subsequently identify chromosomal synapomorphies the groupings formed. T...

Introduction: Down syndrome as a genetic disorder is a popular research topic in molecular studies. One way to study Down syndrome is via bioinformatics.  Methods: In this study, a gene expression profile from a microarray study was selected for more investigation. Results: The study of Down syndrome patients shows specific genes with differential expression and network centrality properties....

in the present study karyotype of mazani river buffalo was studied in comparison with those of azeri buffalo populations from iran. blood samples were taken from ten (5 males and 5 females) mazani buffaloes and thirty (15 males and 15 females) azeri buffaloes. the mazani buffaloes belong to mazendaran province and azeri buffaloes belong to west and east azerbaijan and ardebil provinces. blood l...

Congenital hearing loss with many genetic and environmental causes affects 1 in 1000 newborns. Mutations in the GJB2(Gap Junction Beta-2) gene encoding the gap junction protein connexin 26 have been established as the main cause of autosomal recessive non-syndromic hearing loss. The aim of this study was to study the frequency of one mutation (35delG) of GJB2 gene in Kerman non-syndromic deaf p...

karyotypes of eleven iranian populations of trigonella foenum-graceum were investigated. somatic chromosome numbers of examined populations were determined as 2n = 14. chromosomal parameters were examined as follows: long arm length (tl), short arm, total chromosome length, arm ratio, r-value, form percentage of chromosome, total form percentage of karyotype. chromosomes were mostly metacentric...