Introgression of Stay Green Quantitative Trait Locus (QTLS) into Elite Sorghum Variety by MABC

Sorghum is a major staple food crop for the people in semi-arid areas of Asia. Post-flowering drought is a global constraint of sorghum production. The study aimed to improve stay-green characteristics of GS-23 sorghum variety by transferring stg3A and stg3B QTL`s respectively from donor genotypes K260 and K359w of ICRISAT by using marker assisted backcrossing. The experimental material comprised of six basic generations P1, P2, F1, F2, BC1 and BC2 developed from crossing GS-23 × K260 and GS-23 × K359 were genotyped using a set of 133 SNPs and 79 SSR markers. Whereas, 53 polymorphic SNPs among parents and backcross F1s for stay green trait at maturity were used to track introgression of stay green trait. Similarly,10 SSR markers were found to be polymorphic were used to track introgression of stay green trait i.e., stay green trait QTL`s stg3A and stg3B from donor parent K260 and K359w respectively in GS-23 background across backcross population and to identify plants that were homozygous for the desired allele. In which 02 SNPs SnpSB0039 and SnpSB0093 were identified as polymorphic for both K260 and K359w. Whereas 17 SNPs identified polymorphic for K260 and 34 SNPs for K359w. These SNPs were validated in both F1 and BC1F1 populations of both the crosses. Similarly, out of 10 SSR markers utilized, 02 SSRs were identified polymorphic to K260 and 02 SSRs were identified for K359w. Whereas 06 SSRs were polymorphic to both the parents K260 and K359w. Prominent 02 SSRs viz., Xtxp 141_Fam and Xgap84_Vic found to be more reliable and polymorphic to both the parents. These SSRs were validated in both F1 and BC1F1 populations of both the crosses. The genotypic analysis revealed the presence of favorable alleles in homozygous conditions at markers loci associated with stg3A and stg3B QTL`s in BC populations, suggesting successful introgression of stay green QTLs from the donor parents to the recurrent parent. Therefore, our study demonstrated the utility of marker-assisted backcrossing for drought tolerance improvement of locally adapted sorghum variety.

Genetic Spectrum of Variation and Diversity for Yield and Yield Attributing Traits in Mutagenized Population of Sorghum (Sorghum bicolor L. Moench)

The present study was carried out in Agricultural Research Station, Hagari during rabi 2020, it was undertaken to assess nature of genetic variability and diversity among 200 mutant lines of M4 generation. The study revealed wide variation for yield and yield attributing traits, moderate GCV and PCV coupled with high heritability and genetic advance was observed for stem girth, panicle length and panicle width. The traits viz., stem girth, panicle length, panicle weight, panicle width, 100-seed weight, grain yield per plant and fodder yield showed high heritability and genetic advance as per cent of mean. A wider genetic diversity was observed for the different traits studied among the mutant lines as evidenced by the formation of thirteen clusters for the 200 mutant lines. Out of thirteen characters studied, fodder yield contributed majorly towards divergence with value of 37.35 per cent followed by 100-seed weight contributes (20%), grain yield contributes (15%) and other traits contribute minorly for divergence.

Assessment of the prevalence of G6PD deficiency in RBCs of live new-borns born at tertiary care hospital

Background: Glucose-6-phosphate dehydrogenase is one of many enzymes that help the body process carbohydrates and turn them into energy. The mechanism by which G6PD deficiency causes neonatal hyper bilirubin may be due to hemolysis, but other mechanisms like secondary impairment of bilirubin conjugation and clearance by the liver may play a role. Therefore, through this study authors attempt to study the need for a newborn screening program for G6PD deficiency because of high prevalence and high risk of incidence due to consanguineous marriages in India.Methods: This study was a prospective cross-sectional study conducted among 350 consecutively born live new-borns in maternity wards and NICU of Krishna Institute of Medical Sciences and Hospital and Research Centre, Karad, Maharashtra during October 2016 to October 2017.Results: The maximum numbers of newborns were in the age group of 0-10 hours (36.80%), followed by in 11-20 hours (21.80%). The mean age among newborns was 2.86'5.83 hours. Out of 350 cases females were 181 (51.71%) and males (48.29%) and female to male ratio was 1.07:1.Conclusions: G6PD deficiency is one of the major causes of neonatal jaundice within 24 hours of life in new-borns. Hence, neonatal screening for G6PD deficiency could be an alternative to the haemolytic crisis prevention strategy in order to optimize affected young child care and prevention of crisis occurrence by avoiding taking contraindicated foods and drugs.

Glycemic control in cardiac surgery: Rationale and current evidence.

Studies in cardiac surgical patients have shown an association of hyperglycemia with increased incidences of sepsis, mediastinitis, prolonged mechanical ventilation, cardiac arrhythmias and longer intensive care and hospital stay. There is considerable controversy regarding appropriate glycemic management in these patients and in the defi nition of hyperglycemia and hypoglycemia or the blood sugar levels at which therapy should be initiated. There is also dilemma regarding the usage of “tight glycemic control” with studies showing confl icting evidences. Part of the controversy can be explained by the differing designs of these studies and the variable defi nitions of hyperglycemia and hypoglycemia.

Extensive xanthogranulomatous cystitis mimicking bladder cancer

Xanthogranulomatous cystitis [XC] is a rare benign disease of unknown etiology. A 39-year-old female presented with 2 month history of urgency, dysuria, lower abdominal mass. On physical examination a hard hypogastric mass was present fixed to the rectus muscle. Computerized tomography [CT] abdomen showed heterogeneous enhancing mass arising from the anterior bladder wall with infiltration of the overlying parietal wall. Cystoscopy revealed extensive growth involving the entire wall of the bladder. A biopsy showed cystitis with focal areas suggestive of urothelial neoplasia of unknown malignant potential. Suspecting bladder cancer, we proceeded with radical cystectomy with ileal conduit. Histopathology revealed cystitis cystica with XC of the entire bladder. This is, to our knowledge, the first time that a case has been found to be so extensive with infiltration of the parietal wall and second time that radical cystectomy has been performed for XC

Efficacy of two dose regimes of intravenous immunoglobulin in Rh hemolytic disease of newborn--a randomized controlled trial.

OBJECTIVE: To compare the effect of two dose regimes of IVIg (0.5 g/kg vs. 1g/kg given soon after birth) on duration of phototherapy in Rh-isoimmunized neonates 32 week and above gestation. DESIGN: Randomized controlled trial. SETTING: Tertiary care hospital. SUBJECTS: Rh positive blood group neonates of gestation 32 weeks and above born to Rh negative mothers having positive Direct Coombs test and without any major malformation. INTERVENTION: Intravenous immunoglobulin (IVIg) infusion over 2 h either 0.5 g/kg (low dose group, n=19) or 1.0 g/kg (high dose group, n=19). PRIMARY OUTCOME VARIABLE: Duration of phototherapy. RESULTS: The mean duration of phototherapy was 77.3+/-57.2 h in low dose group versus 55.4+/-49 h in high dose group (mean difference=21.9; 95% CI-13.1 to 56.9). There was no difference in need for exchange transfusion (21% in both the groups) and requirement of packed red blood cells transfusion (12 transfusions in both groups). The duration of hospital stay was similar [8.4+/-6.9 and 13.6+/-14.8 days, respectively (mean difference=-5.1; 95% CI-12.8 to 2.5)]. No adverse effects of IVIg administration were noted. CONCLUSION: Two regimens of IVIg (0.5 g/Kg or 1 g/Kg) had comparable effect on duration of phototherapy, duration of hospital stay and exchange transfusion requirement, in Rh isoimmunized neonates of gestation 32 weeks and above.