The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Perennial wheat has been proposed to alleviate long standing issues with soil erosion in annual cropping systems, while supporting rural communities and providing grain farmers with a marketable climate-resilient crop. The Washington State University perennial wheat breeding program has created several hundred interspecific progeny by crossing several different cultivars of winter wheat (Triticum aestivum...
Arabica coffee production is based on highly productive cultivars; however, these cultivars are susceptible to infestation by several biotic agents, including root-knot nematodes. Collections of wild Coffea arabica germplasm represent an important source of genetic variability for resistant cultivar development. In this study, 1046 plants derived from 71 wild coffee trees were evaluated with respect...
Phytophthora root rot caused by Phytophthora drechsleri Tucker is one of the most devastating sugar beet diseases in tropical areas. To identify genetic resources resistant to this disease, an aggressive isolate of P. drechsleri was selected. Then, a screening method was optimized based on the standard scoring scales of 1–9 (1: no symptoms, 9: complete plant death). Finally, 19 sugar beet lines, three...
Mungbean (Vigna radiata) seeds are used for direct consumption by people and are raw material for sprout, starch and noodle industries in Asia. High-yielding mungbean cultivars with high seed starch content are preferred for the starch and noodle industries. At present, there is no report on genetic control of seed starch content in mungbean. The objective of this study were to (i) estimate heritability...
Stem rot caused by Sclerotium rolfsii is a major problem in Jerusalem artichoke production. Breeding of Jerusalem artichoke for stem rot resistance is a promising method for disease control, and identification of sources of resistance is necessary to initiate Jerusalem artichoke breeding programs. The objective of this study was to characterize the diversity of Jerusalem artichoke germplasm for resistance...
To study the influence of both pollen competition ability (PCA) and haploid induction rate (HIR) on heterofertilization, we used maize haploid inducers with different HIRs as male parents. For these experiments, maize plants underwent dual pollination, first by the inducers and then by self-pollination at different time intervals. We found that PCA strongly influenced heterofertilization, as measured...
Karyotype analysis of first generation (F1) and backcrossed (BC1) interspecific hybrids were preformatted, suggesting important cytological events in the origin of artificial hybrids. Characterization was performed in 16 backcrossed plants and their genitors by conventional staining, fluorescence in situ hybridization (FISH) with probes for 5S and 45S rDNA and telomeric probes. Genomic identification...
In situ conservation of wild species is a method of conservation that allows keeping populations in their natural environments, and set the strategies for maintaining the natural populations. The Active Bank of Northwestern Argentina (BANOA) is in charge of the in situ conservation of wild populations of common bean (Phaseolus vulgaris L.) in Northwestern Argentina (NOA), and has an ex situ collection...
An essential component of efforts to mitigate the impacts of climate change on crop production and food security is the production of new varieties of crops which can thrive in more extreme, changeable and uncertain environmental conditions. Humankind is therefore dependent on the continual availability of a wide pool of plant genetic resources for food and agriculture (PGRFA) to sustain our food...
Sensitivity to lodging of oat varieties has been reduced in the last decades through the introduction of dwarfing genes. However, lodging may still cause significant yield loss, underscoring the need for new oat varieties with higher levels of lodging tolerance. In the present study, we analysed lodging and plant height in a collection of European oat accessions including landraces, old and modern...
Barley yellow dwarf virus infection (BYDV) often results in substantial yield losses in susceptible cereal crops. Major symptoms of BYDV infection in cereals include plant dwarfing and colour changes of leaf blades along the vascular bundles, especially of leaf tips. A full understanding of physiological and molecular mechanisms contributing to resistance provides salient information for breeding...
Soybean yield components and agronomic traits are connected through physiological pathways that impose tradeoffs through genetic and environmental constraints. Our primary aim is to assess the interdependence of soybean traits by using unsupervised machine learning techniques to divide phenotypic associations into environmental and genetic associations. This study was performed on large scale, jointly...
Cassava root rot disease (CRRD) severely affects productivity in several countries. The objective of this study was to estimate genetic parameters and to identify multiple resistance sources against pathogens associated with CRRD. The symptoms caused by Fusarium spp., Phytophthora spp., and Botryosphaeriaceae species in peel and pulp from the roots were evaluated in 277 accessions using a whole tuberous...
The development of cassava (Manihot esculenta Crantz) with a high yield under water-deficit conditions is one of the goal of the breeding programs. The objective of this study was to evaluate the performance and to select cassava accessions based on drought tolerance indices and productive potential under water stress. Forty-nine accessions were evaluated for five agronomic traits (plant height—PH,...
Regulation of flowering time in almond, as in other Prunus species, is a complex process involving both chill and heat requirements. Following exposure to appropriate consecutive periods of cold and warm temperatures, the buds break dormancy and sprout or flower depending on bud type. To maximize flowering and subsequent vegetative growth and fruit set, chilling and ensuing warm temperature requirements...
For a better understanding of the physiological background of microspore embryogenesis (ME), the protein profile was analyzed in four winter triticale DH lines, which show extremely different embryogenic potential. The analysis were conducted with anthers at the phase of development optimal for ME induction and then after low temperature (LT, 3 weeks at 4 °C) ME-inducing tillers treatment. The sub-proteome...
In order to study the inheritance of resistance to crown rust (Puccinia coronata f. sp. lolii) in perennial ryegrass (Lolium perenne), we crossed a resistant, diploid genotype (A6128/05) with a susceptible genotype of the cultivar Aurora to generate a F1 population. Individuals of the F1 population were screened for their response to three single-pustule isolates (SPI) of crown rust in a detached-leaf...
Agropyron cristatum exhibits resistance to Blumeria graminis f. sp. tritici. Disomic and ditelosomic chromosome addition lines of A. cristatum in ‘Chinese Spring’ wheat were utilized to determine which A. cristatum chromosomes carry resistance gene(s). Resistance is conferred by gene(s) on chromosome arms 2PL and 6PL. The availability of molecular markers capable of detecting these chromosome arms...
In the present study, a set of 79 rice introgression lines (ILs) carrying variant introgressed segments of African rice (Oryza glaberrima Stued.) was used to identify quantitative trait loci (QTL) and heterotic loci (HL) associated with 7 agronomic traits. A total of 180 polymorphic markers between the donor and recurrent parents were found and 115 markers were used to identify the segregation of...
This study sought to identify new sources of resistance to cowpea aphids (CPA) using molecular and phenotypic approaches and the inheritance pattern. Sixty cowpea genotypes were phenotyped for resistance to CPA using insect proof cages and further confirmed using markers linked to aphid resistance. Result revealed that among the cowpea genotypes, TVu 2897 and TVNu 1158 supported lowest number of aphids...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.