Zobrazení zdroje stránky Baggeschaefer1408

11-0.17; P2 0.08-0.13 and F1 0.12-0.14). The genetic analysis of MLB resistance revealed the nonallelic interactions of duplicate epistasis type across the test locations. Among the gene interactions, dominance x dominance [l] effect was predominant over additive x additive [i] and additive x dominance [j] effects. The segregation analysis and the prediction of the number of major loci revealed at least two major genes associated with MLB tolerance in subtropical maize. Our investigation paved the foundation for the improvement of subtropical maize germplasm of MLB resistance.Male fertility in farm animals is considered as an important economic trait. The phenomenon of spermatogenesis plays a dynamic functional role in determining the viability of sperm and thereby can impact on fertility-driven complications. The process of spermatogenesis is controlled by numerous molecular factors and requires a precisely regulated pattern of gene expression. The role of small noncoding RNAs in altering gene expression has been extensively studied. However, limited information is available apropos their role in yak spermatogenesis. [https://www.selleckchem.com/ selleck chemicals] The present study aimed to evaluate the assessment of some significant microRNAs and their expression pattern in the body tissues and sperm of fertile and subfertile yak from Arunachal Pradesh besides identified a novel class of sperm enriched small RNA 'mature-sperm-enriched small RNA' (mse-tsRNA) in Yak spermatozoa. The RNAwas extracted from tissue and sperm using 27 gauge needles and subsequently reverse transcribed into small RNA cDNAs. The PCR positive sperm-predominant miRNAs were validated by quantitative reverse transcriptase PCR (qRT-PCR) for their expression in fertile and subfertile yak. Of the 22 microRNAs, the miRNA19a, miRNA142 and miRNA143 showed higher expression in the subfertile yak, whereas expression of miRNA7d, miRNA23a and miRNA23b were found elevated in the fertile animal. The presence of these small noncoding RNAs in yak sperm and testis indicated the legitimate involvement of their role in yak bull fertility.The phospholipase A2 group VI (PLA2G6) gene encodes for a Ca2+-independent PLA2, which is localized in the cytosol, in the endoplasmic reticulum and in the mitochondrial membrane, plays a major role in phospholipid remodelling. Mutations within this gene have been reported to cause different phenotypes infantile-onset neuroaxonal dystrophy associated with brain iron accumulation and adult-onset parkinsonian syndrome. In the present study, we analysed the PLA2G6 gene sequence in an asymptomatic young woman that was referred to our laboratory by a geneticist for an history of infantile neuroaxonal dystrophy in her little maternal cousin in whom the results of the genetical analysis were not available. We found two variants in the PLA2G6 gene (NM_003560.4, c.439 G&gt;A and c.2132 C&gt;T, p.Ala147Thr and p.Pro711Leu) previously reported as pathogenic. These results prompted us to perform a segregation analysis in the parents of this woman and we only found the presence of both variants in the asymptomatic 56-year-old patient's mother. Our molecular genetic testing clearly indicates that the c.439 G&gt;A and c.2132 C&gt;T variations identified in the PLA2G6 gene are positioned in cis and are not responsible for infantile neuroaxonal dystrophy which is an autosomal recessive disease.Prostate cancer is a heterogeneous disease and considered to be the most commonly diagnosed cancer. SFRP4 gene acts as Wnt antagonist in the Wnt signalling pathway, thereby playing an important role in carcinogenesis. The aim of the present study was to investigate two single-nucleotide polymorphisms c.958 C&gt;A (rs1802073) and c.1019 G&gt;A (rs1802074) in the SFRP4 gene and its expression in prostate cancer. A sample size of 100 cases and 100 age-matched controls were recruited for the study. Statistical analysis revealed the heterozygous GA genotype of rs1802074 significantly increased in cases when compared to controls. Analysis of sFRP4 expression based on the genotypes showed a significantly increased expression for the heterozygous GA and homozygous AA genotypes in cases when compared to the controls. Fold change was calculated using 2-ΔΔCT method and the results showed that there were a 3.4 and 4.5 fold increase in the sFRP4 expression for GA and AA genotypes, respectively. Our results suggest that the rs1802074 polymorphism in SFRP4 gene may be associated with the risk of prostate cancer.Plastomes, which are maternally inherited and show a moderate rate of evolution, play a critical role in phylogenetic reconstruction and assignment of plant species. However, little is known about the sequence divergence and molecular evolutionary patterns of plastid genomes in Elaeagnus mollis, a plant of great economic, medicinal, edible and ecological values. The plastid genome of E. mollis is 152,224-bp long and has 47 repeat sequences, including tandem (17), dispersed (12), and palindromic (18) types of repeat variations. Here, we reported six divergence hotspots (atpH-atpI, petN-psbM, trnT-psbD, trnP-psaJ, rpl32-trnL and ycf1) that could potentially be used as molecular genetic markers for population genetics and phylogenetic studies of E. mollis. A comparison of plastid genomes in the order Rosales showed that the trnH gene was duplicated only in Elaeagnaceae; therefore, it is an important marker in Elaeagnaceae. Phylogenetic analyses based on whole plastid genome sequences in 33 species revealed that Rosales is divided into two strongly supported clades and that the families Elaeagnaceae and Barbeyaceae are closely related.Okra production in eastern India at present is severely threatened by whitefly-mediated okra enation leaf curl disease (OELCuD). Identification of resistant genotype and understanding the genetic control and biochemical relationship of OELCuD resistance are prerequisite for developing an effective breeding strategy. This study was conducted employing six populations (P1, P2, F1, F2, BC1 and BC2) of two selected (resistant x susceptible (RxS)) crosses. Associationship between severity of OELCuD and biochemical parameters of parents and hybrids at preflowering and flowering stages was studied. Segregation pattern of the genotypes in F2 generation showing OELCuD reaction of two crosses suggested that two duplicate recessive genes was operative for resistance to OELCuD. Generation mean analysis revealed involvement of both additive and nonadditive effects in the inheritance of disease resistance. Hence, postponement of selection in later generations or intermating among the selected segregates followed by one or two generations of selfing to break the undesirable linkage and allow the accumulation of favourable alleles could be suggested for the development of stable resistant genotype against this disease.