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Rodomiro Ortiz   Dr.  Senior Scientist or Principal Investigator 
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Rodomiro Ortiz published an article in August 2018.
Top co-authors See all
David Edwards

457 shared publications

Plant and Equipment Management, Faculty of Computing, Engineering and the Built Environment, Birmingham City University, United Kingdom

Rajeev K. Varshney

402 shared publications

Center of Excellence in Genomics & Systems Biology, International Crops Research Institute for the Semi-Arid Tropics (ICRISAT); Patancheru 502 324 Greater Hyderabad India

Henry T Nguyen

242 shared publications

Division of Plant Sciences and National Center for Soybean Biotechnology; University of Missouri; Columbia Missouri 65211 USA

Jacqueline Batley

142 shared publications

School of Biological Sciences, The University of Western Australia, Australia

Stan D. Wullschleger

142 shared publications

Climate Change Science Institute and Environmental Sciences Division; Oak Ridge National Laboratory; Oak Ridge Tennessee USA

Publication Record
Distribution of Articles published per year 
(1970 - 2018)
Total number of journals
published in
Publications See all
Article 1 Read 0 Citations Using Biotechnology-Led Approaches to Uplift Cereal and Food Legume Yields in Dryland Environments Sangam L. Dwivedi, Kadambot H. M. Siddique, Muhammad Farooq,... Published: 27 August 2018
Frontiers in Plant Science, doi: 10.3389/fpls.2018.01249
DOI See at publisher website ABS Show/hide abstract
Drought and heat in dryland agriculture challenge the enhancement of crop productivity and threaten global food security. This review is centered on harnessing genetic variation through biotechnology-led approaches to select for increased productivity and stress tolerance that will enhance crop adaptation in dryland environments. Peer-reviewed literature, mostly from the last decade and involving experiments with at least two seasons’ data, form the basis of this review. It begins by highlighting the adverse impact of the increasing intensity and duration of drought and heat stress due to global warming on crop productivity and its impact on food and nutritional security in dryland environments. This is followed by (1) an overview of the physiological and molecular basis of plant adaptation to elevated CO2 (eCO2), drought, and heat stress; (2) the critical role of high-throughput phenotyping platforms to study phenomes and genomes to increase breeding efficiency; (3) opportunities to enhance stress tolerance and productivity in food crops (cereals and grain legumes) by deploying biotechnology-led approaches [pyramiding quantitative trait loci (QTL), genomic selection, marker-assisted recurrent selection, epigenetic variation, genome editing, and transgene) and inducing flowering independent of environmental clues to match the length of growing season; (4) opportunities to increase productivity in C3 crops by harnessing novel variations (genes and network) in crops’ (C3, C4) germplasm pools associated with increased photosynthesis; and (5) the adoption, impact, risk assessment, and enabling policy environments to scale up the adoption of seed-technology to enhance food and nutritional security. This synthesis of technological innovations and insights in seed-based technology offers crop genetic enhancers further opportunities to increase crop productivity in dryland environments.
Article 0 Reads 0 Citations Durum Wheat Breeding: In the Heat of the Senegal River Amadou T. Sall, Filippo M. Bassi, Madiama Cisse, Habibou Gue... Published: 02 July 2018
Agriculture, doi: 10.3390/agriculture8070099
DOI See at publisher website ABS Show/hide abstract
Global warming may cause +4 °C temperature increases before the end of this century. Heat tolerant bred-germplasm remains the most promising method to ensure farm productivity under this scenario. A global set of 384 durum wheat accessions were exposed to very high temperatures occurring along the Senegal River at two sites for two years. The goal was to identify germplasm with enhanced tolerance to heat. There was significant variation for all traits. The genetic (G) effect accounted for >15% of the total variation, while the genotype by environment interaction (G × E) reached 25%. A selection index that combines G and a G × E wide adaptation index was used to identify stable high yielding germplasm. Forty-eight accessions had a stable grain yield above the average (2.7 t ha−1), with the three top lines above 3.5 t ha−1. Flowering time, spike fertility and harvest index were the most critical traits for heat tolerance, while 1000-kernel weight and spike density only had environment-specific effects. Testing of six subpopulations for grain yield across heat-prone sites revealed an even distribution among clusters, thus showing the potential of this panel for dissecting heat tolerance via association genetics.
Article 0 Reads 1 Citation Genetic Basis and Breeding Perspectives of Grain Iron and Zinc Enrichment in Cereals Ana Luisa Garcia-Oliveira, Subhash Chander, Rodomiro Ortiz, ... Published: 02 July 2018
Frontiers in Plant Science, doi: 10.3389/fpls.2018.00937
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Micronutrient deficiency, also known as “hidden hunger,” is an increasingly serious global challenge to humankind. Among the mineral elements, Fe (Iron) and Zn (Zinc) have earned recognition as micronutrients of outstanding and diverse biological relevance, as well as of clinical importance to global public health. The inherently low Fe and Zn content and poor bioavailability in cereal grains seems to be at the root of these mineral nutrient deficiencies, especially in the developing world where cereal-based diets are the most important sources of calories. The emerging physiological and molecular understanding of the uptake of Fe and Zn and their translocation in cereal grains regrettably also indicates accumulation of other toxic metals, with chemically similar properties, together with these mineral elements. This review article emphasizes breeding to develop bioavailable Fe- and Zn-efficient cereal cultivars to overcome malnutrition while minimizing the risks of toxic metals. We attempt to critically examine the genetic diversity regarding these nutritionally important traits as well as the progress in terms of quantitative genetics. We sought to integrate findings from the rhizosphere with Fe and Zn accumulation in grain, and to discuss the promoters as well as the anti-nutritional factors affecting Fe and Zn bioavailability in humans while restricting the content of toxic metals.
Article 0 Reads 0 Citations Quality and Grain Yield Attributes of Rwandan Rice (Oryza sativa L.) Cultivars Grown in a Biotron Applying Two NPK Level... Alphonsine Mukamuhirwa, Helena Persson Hovmalm, Rodomiro Ort... Published: 24 June 2018
Journal of Food Quality, doi: 10.1155/2018/5134569
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High-yielding rice cultivars with good processing quality and rich in nutrition suitable to a changing climate are of particular importance for future rice-based food production. Here, seven Rwandan rice cultivars were grown in a climate chamber of the biotron facility at the Swedish University of Agricultural Sciences, to be evaluated for their grain yield, nutritional composition, and dough mixing properties. Two different levels of inorganic fertilizer were applied weekly from the seedling stage until flowering. Significant differences for grain yield and quality attributes were found between cultivars. Jyambere showed significantly the highest yield while Ingwizabukungu, Nemeyubutaka, and Jyambere were high in mineral elements content. Ndamirabahinzi and Mpembuke had the highest levels of TPC and TAC. Generally, the lower fertilizer dose resulted in a better performance of the cultivars for both yield and quality attributes. Significantly higher content of Fe, Ca, and Ba was found in grains from the moderate fertilizer dose, whereas K, Na, P, S, Zn, Cd, and Pb increased in grains from the higher fertilizer dose. The cultivar Ndamirabahinzi showed less variability of evaluated characters across fertilizer doses. The results from this study may be used for rice breeding of cultivars with high yield and good grain quality.
Article 1 Read 0 Citations Late blight and virus host-plant resistances, crossing ability and glycoalkaloids in Nordic potato germplasm Nadezhda Zoteyeva, Ulrika Carlson-Nilsson, Therese Bengtsson... Published: 09 May 2017
Acta Agriculturae Scandinavica, Section B - Plant Soil Science, doi: 10.1080/09064710.2017.1324042
DOI See at publisher website
Article 1 Read 3 Citations Genoproteomics-assisted improvement of Andrographis paniculata : toward a promising molecular and conventional breeding ... Alireza Valdiani, Daryush Talei, Surrinder K. Lattoo, Rodomi... Published: 03 January 2017
Critical Reviews in Biotechnology, doi: 10.1080/07388551.2016.1260525
DOI See at publisher website PubMed View at PubMed