<i>Oryza</i> Wild Species: An Alternative for Rice Breeding under Abiotic Stress Conditions

Abstract

Rice (Oryza sativa L.) presents a strategic role in social and economic levels. The aim of this study was to elucidate the presence of genetic variability for the genus Oryza, and the possibility of using genotypes with wild characteristics in rice breeding programs. The Oryza genus shows great genetic variability through wild genotypes available in the most varied environments around the world. The negative effects imposed by abiotic stresses such as flood, salinity, low temperatures, water deficiency and high temperatures may be minimized by the efficient identification of a genetic variability source from the Oryza genus. Among the main wild species presented by the Oryza genus, Oryza glumaepatula stands out being an active source of germplasm. The occurrence and preservation of genetic variability of Oryza genus is indispensable to obtain new rice genotypes, to guarantee food security for the human population, as well as to develop genotypes that adapt to climatic changes and natural adversities.

Genetics of barley tiller and leaf development

“…In this respect, high throughput phenotyping technologies can play a major role to evaluate complex and unexplored traits on a breeding scale (Fiorani and Schurr ). At the same time, identification and preservation of allelic diversity, present in landraces, wild relatives and mutant collections, is important for efficient exploitation of genetic diversity (Tavakol et al ; Szareski et al ). This exploitation can be facilitated by state‐of‐the‐art genomic tools, which can be employed for mapping of relevant genes (Figure ) and systematic exploration of germplasm collections.…”

Mycosynthesis of ZnO Nanoparticles Using Trichoderma spp. Isolated from Rhizosphere Soils and Its Synergistic Antibacterial Effect against Xanthomonas oryzae pv. oryzae

“…Rice (Oryzae sativa L.) is one of the most vital and essential nourishment sources for half of the world's population, it belongs to the family Poaceae, and it is the most widely cultivated food crop in the world [1]. Across the world, annually, about 40% of rice crops are lost due to biotic stresses such as insects, pathogens, pests and weeds [2].…”

Nipponbare and wild rice species as unexpected tolerance and susceptibility sources againstSchizotetranychus oryzae(Acari: Tetranychidae) mite infestation

“…The search for genetic variability in the Oryza genus is a shortcut to obtain resistant/tolerant rice genotypes and to develop cultivars that adapt to natural adversities (Menguer et al 2017;Szareski et al 2018). Several authors report wild rice plants that are resistant/tolerant to biotic and abiotic factors (Brar and Khush, 2003).…”