Advancing tree genomics to future proof next generation orchard production

The challenges facing tree orchard production in the coming years will be largely driven by changes in the climate affecting the sustainability of farming practices in specific geographical regions. Identifying key traits that enable tree crops to modify their growth to varying environmental conditions and taking advantage of new crop improvement opportunities and technologies will ensure the tree crop industry remains viable and profitable into the future. In this review article we 1) outline climate and sustainability challenges relevant to horticultural tree crop industries, 2) describe key tree crop traits targeted for improvement in agroecosystem productivity and resilience to environmental change, and 3) discuss existing and emerging genomic technologies that provide opportunities for industries to future proof the next generation of orchards.

Maternal Health Services Utilisation in Panchkhal Municipality, Kavrepalanchok, Nepal

Background Maternal Health is a priority program of Nepal. The low utilization of maternal health services is one of the major contributing factors for high maternal morbidity and mortality in developing countries like Nepal. Objective To explore various maternal health services utilized by women and identify various factors affecting the utilization of maternal health services in Panchkhal Municipality. Method A descriptive cross-sectional study was conducted among 355 reproductive-age women who have given birth in the last 2 years in Panchkhal Municipality. The data collection period was from May to July 2020. A convenient sampling method was used to select the study population. The data analysis was done by using Statistical Package for Social Sciences (version 20.0). Variables were defined by the frequency in numbers and percentages. Result The findings from the study showed that the coverage of the antenatal care (ANC) visit was 77% and among them, 25.6% visited at least 4 antenatal care visits as recommended by the government of Nepal. Out of 355 respondents, 52.4% were delivered in the health institution, and only 20% visited postnatal care after the delivery. Among various factors, lack of treatment facilities and health facilities at a far distance were the most common factors for the underutilization of maternal health services. Conclusion The coverage of maternal health services is still low despite free maternal health services with an incentive scheme. A further detailed investigation is required to find the real scenario of the Panchkhal municipality to under-utilization of maternal health services.

Horticultural innovation by viral-induced gene regulation of carotenogenesis

Multipartite viral vectors provide a simple, inexpensive and effective biotechnological tool to transiently manipulate (i.e. reduce or increase) gene expression in planta and characterise the function of genetic traits. The development of virus-induced gene regulation (VIGR) systems usually involve the targeted silencing or overexpression of genes involved in pigment biosynthesis or degradation in plastids, thereby providing rapid visual assessment of success in establishing RNA- or DNA-based VIGR systems in planta. Carotenoids pigments provide plant tissues with an array of yellow, orange, and pinkish-red colours. VIGR-induced transient manipulation of carotenoid-related gene expression has advanced our understanding of carotenoid biosynthesis, regulation, accumulation and degradation, as well as plastid signalling processes. In this review, we describe mechanisms of VIGR, the importance of carotenoids as visual markers of technology development, and knowledge gained through manipulating carotenogenesis in model plants as well as horticultural crops not always amenable to transgenic approaches. We outline how VIGR can be utilised in plants to fast-track the characterisation of gene function(s), accelerate fruit tree breeding programs, edit genomes, and biofortify plant products enriched in carotenoid micronutrients for horticultural innovation.

Work-related Respiratory Symptoms and Associated Factors among Cement Factory Workers in Rupandehi District, Nepal

Background Cement factory workers are exposed to cement dust at workplace. It leads to a greater prevalence of chronic respiratory signs and symptoms. Objective To identify the prevalence of Work-related respiratory symptoms, its association with various risk factors, and to assess the outcomes like hospitalization and sickness absenteeism. Method Cross-sectional study was conducted in the Argakhanchi Cement factory among 190 workers with minimum work experience of 1 year. Census method was used for data collection. To assess the respiratory symptoms, sputum samples were collected; smears prepared by pick and smear method, and later stained by Leishman and pap stain. Smears devoid of alveolar macrophages were considered unsatisfactory for evaluation. Result The mean age of respondents with standard deviation was 35.56±11.45 years. The prevalence of Work-related respiratory symptoms was 31.6%. Age, no. of years worked, working in the raw materials department, burner and clinker department, cleaning department and wearing mask were the significant risk factors. On cytological analysis of the sputum sample, mild inflammatory cell noticed in 71.6%, moderate inflammation in 23.7%, and dense inflammation in 4.2%. Fungal spores were seen in 3.7%, fungal pseudohyphae in 0.5%, and bacterial colonies in 27% of the sputum samples. Out of 190 participants, 8(4.2%) of them had to be hospitalized and 17(8.9%) were on sick leave due to respiratory symptoms. Conclusion Pre-employment and periodic medical examination, frequent work shift, training on occupational health and safety, use of appropriate personnel protective equipment is recommended to reduce respiratory symptoms.

Chromosomal Locations and Interactions of Four Loci Associated With Seed Coat Color in Watermelon

Different species of edible seed watermelons (Citrullus spp.) are cultivated in Asia and Africa for their colorful nutritious seeds. Consumer preference varies for watermelon seed coat color. Therefore, it is an important consideration for watermelon breeders. In 1940s, a genetic model of four genes, R, T, W and D, was proposed to elucidate the inheritance of seed coat color in watermelon. In this study, we developed three segregating F₂ populations: Sugar Baby (dotted black seed, RRTTWW) × plant introduction (PI) 482379 (green seed, rrTTWW), Charleston Gray (dotted black seed, RRTTWW) × PI 189225 (red seed, rrttWW), and Charleston Gray (dotted black seed, RRTTWWdd) × UGA147 (clump seed, RRTTwwDD) to re-examine the four-gene model and to map the four genes. In the dotted black × green population, the dotted black seed coat color (R_) is dominant to green seed coat color (rr). In the dotted black × red population, the dominant dotted black seed coat color and the recessive red seed coat color segregate for the R and T genes, where the R gene is dominantly epistatic to the T gene. However, the inheritance of the T locus did not fit the four-gene model, thus we named it T¹ . In the dotted black × clump population, the clump seed coat color and the dotted black seed coat color segregate for W and D, where D is recessively epistatic to W. The R, T¹ , W, and D loci were mapped on chromosomes 3, 5, 6, and 8, respectively, using QTL-seq and genotyping-by-sequencing (GBS). Kompetitive Allele Specific PCR (KASP™) assays and SNP markers linked to the four loci were developed to facilitate maker-assisted selection (MAS) for watermelon seed coat color.

Scenario of health camps in Nepal

It has become a rising trend in Nepal to conduct health camps. This article tries to give an overview about the direction to which this aspect of community based service is going to and also points out a few pros and cons related to this. A couple of issues has also been raised like; ethical issues, lack of governing bodies and a lack of national policy, unavailability of data upon health camps and so forth. Above all, this article tries to clarify the importance of conducting health camps in a country like ours and if properly conducted this has a balanced benefit to all.