The S5 locus regulates spikelet fertility of indica/japonica hybrid rice (Oryza sativa). There are three alleles at the S5 locus, including an indica allele (S5i), a japonica allele (S5j), and a wide-compatibility allele (S5n). This study analyzed the molecular basis for S5-dependent reproductive isolation and compatibility of indica/japonica rice hybrids. Three S5 alleles were expressed at ext...

background: multiple sclerosis (ms) is an autoimmune disease of the central nervous system (cns) caused by autoreactive t cells against myelin antigens. t-cell immunoglobulin mucin -3 (tim-3) is a negative regulator glycoprotein expressed by a range of immune cells, including, th1 cells, activated cd8+ t cells and in a lower level on th17 cells. a defect in tim-3 regulation has been shown in mu...

Exposure to grass pollens during the pollen season, reveals in sensitive patients symptoms of allergic rhinitis, conjunctivitis and/or bronchial asthma. It is not well understood why, in some patients, only symptoms of rhinitis occur while in others similar exposure causes symptoms of asthma and rhinitis. An association study is reported here, where the possible contribution of human leucocyte ...

Self-incompatibility (SI) in Brassica species is controlled by a single polymorphic locus (S) with multiple specificities. Two stigmatically expressed genes that have been cloned from this region encode the S locus glycoprotein (SLG) and S receptor kinase (SRK). Both appear to be essential for the operation of SI. It is believed that rejection of incompatible pollen grains is effected by recogn...

The genetic diversity among 56 almond (Prunus dulcis) genotypes was analysed using 35 microsatellite markers and 14 morphological traits. Analysis of morphological traits revealed a wide range of variation among the studied genotypes. Out of 35 simple sequence repeats (SSRs) markers, 25 were polymorphic, producing 215 alleles that varied from 2 to 16 with an average of 8.76 alleles per locus. R...

1. The role of genetic factors in species decline and extinction is the subject of a long-running controversy, with demographical factors often seen as more important for the immediate persistence of populations and species. One gene system that directly links genetic diversity with reproduction, through its influence on fertilization success, is the self-incompatibility (SI) locus in angiosper...

Abstract Determination of genetic diversity level is important in clarifying genetic relationships, characterizing germplasm and the registration of new cultivars. In this study, genetic variation among 56 accessions (G1~G56) of Citrus including several undefined local or native genotypes and some known varieties in Jiroft, Kerman province, Iran was investigated using SSR markers. In total, 12 ...

A panel of polymorphic microsatellite markers have been developed in coast redwood (Sequoia sempervirens). Two loci in particular (Seq18D7-3 and Seq21E5) demonstrate the potential of microsatellite genotyping in the assessment of genetic diversity and inheritance in redwoods. The highly polymorphic Seq18D7-3 marker provided evidence for the planting of non-local redwood seedlings in a restored ...

UNLABELLED PREMISE OF THE STUDY Microsatellite primers were developed for an indigenous fruit tree, Parkia biglobosa, as a tool to study reproductive biology and population structure. Here we use the primers to determine the number of fathers per pod. • METHODS AND RESULTS Microsatellite loci were enriched in a genomic sample and isolated using pyrosequencing. Eleven primer pairs were char...

recognizing of genetic diversity and genetic potential of each plant species is necessary and essential before any works on breeding program. genetic diversity among five populations of walnut (juglans regia l.) was studied using 11 ssr markers. the marker system produced 77 alleles in a range size of 176-275 bps. the minimum (2) and maximum (11) numbers of alleles were related to genetic locus...