906 research outputs found
Sources of resistance to yellow rust and stem rust in wheat-alien introgressions
No full textWheat is the staple food and the main source of caloric intake in most developing countries, and thereby an important source in order to maintain food security for the growing populations in those countries. Stem rust Puccinia graminis f. sp. tritici, and yellow rust P. striiformis f. sp. tritici of wheat continues to cause severe damage locally and globally, thereby contributing to food insecurity. In this paper biology and taxonomy of stem rust and yellow rust, breeding for resistance, utilization of resistance sources from different gene pools, molecular characterization and genetic dissection of resistance to rusts are discussed
Code and data from "Cell tracking of convective rainfall: sensitivity of climate-change signal to tracking algorithm and cell definition (Cell-TAO v1.0)"
No full textThis archive contains scripts for the precipitation tracking algorithms used in the manuscript "Cell tracking of convective rainfall: sensitivity of climate-change signal to tracking algorithm and cell definition". The archive furthermore contains test data, a post-processing script and a run script.
A detailed explanation of the tracking scripts, as well as all other contents of the archive, is contained in a README file within the archive.This work was funded by the German Ministry of Education and Research (Bundesministerium für Bildung und Forschung, BMBF) as part of the ClimXtreme project (https://climxtreme.net/). More specifically, the work was performed as part of the ClimXtreme sub-project XPreCCC, grant number 01LP1902H
’n Lyf onthou (Riette Rust)
No full text’n Lyf onthou.Riette Rust. Pretoria: Protea Boekhuis, 2012.168 pp. ISBN 978-1-86919-548-9
The Impact Of The Development Of ICT In Several Hungarian Economic Sectors
No full textAs the author could not find a reassuring mathematical and
statistical method in the literature for studying the effect of
information communication technology on enterprises, the author
suggested a new research and analysis method that he also used to study the Hungarian economic sectors. The question of what
factors have an effect on their net income is vital for enterprises. At first, the author studied some potential indicators related to economic sectors, then those indicators were compared to the net income of the surveyed enterprises. The resulting data showed that the growing penetration of electronic marketplaces contributed to the change of the net income of enterprises to the greatest extent.
Furthermore, among all the potential indicators, it was the only indicator directly influencing the net income of enterprises.
With the help of the compound indicator and the financial data
of the studied economic sectors, the author made an attempt to find a connection between the development level of ICT and
profitability. Profitability and productivity are influenced by a lot of other factors as well. As the effect of the other factors could not be measured, the results – shown in a coordinate system - are not full but informative.
The highest increment of specific Gross Value Added was
produced by the fields of ‘Manufacturing’, ‘Electricity, gas and water supply’, ‘Transport, storage and communication’ and
‘Financial intermediation’. With the exception of ‘Electricity, gas and water supply’, the other economic sectors belong to the group of underdeveloped branches (below 50 percent).
On the other hand, ‘Construction’, ‘Health and social work’ and
‘Hotels and restaurants’ can be seen as laggards, so they got into the lower left part of the coordinate system.
‘Agriculture, hunting and forestry’ can also be classified as a
laggard economic sector, but as the effect of the compound
indicator on the increment of Gross Value Added was less
significant, it can be found in the upper left part of the coordinate system. Drawing a trend line on the points, it can be made clear that it shows a positive gradient, that is, the higher the usage of ICT devices, the higher improvement can be detected in the specific Gross Value Added
Genetic characterisation of novel resistance alleles to stem rust and stripe rust in wheat-alien introgression lines [Elektronisk resurs]
No full textBread wheat (Triticum aestivum L., 2n = 6x = 42, AABBDD) is one of the most important food crops world-wide, but is attacked by many diseases and pests that cause significant yield losses. Globally, stem rust (Sr) (Puccinia graminis f. sp. tritici Erikss & E. Henning), stripe rust (Yr) (Puccinia striiformis Westend. f. sp. tritici Eriks) and leaf rust (Lr) (Puccinia triticina Eriks) are a great threat to wheat production. The majority of the Sr, Yr and Lr resistance genes are already defeated by numerous virulent races, so enhanced genetic resistance against these devastating diseases are essential. Wheat-alien introgressions from derivatives of Secale cereale L. (2n = 2x = 14, RR), Leymus mollis (2n = 4x = 28, NsNsXmXm), Leymus racemosus (2n = 4x = 28, NsXm) and Thinopyrum junceiforme (2n = 4x = 28; J1J1J2J2) are important genetic resources for new sources of resistance genes. To identify new sources of resistance, this thesis evaluated seedling and adult plant resistance to a wide array of stem rust and stripe rust races. Three wheat-rye disomic substitution lines 2R (2D) were found to carry new resistance gene/s to stem rust races and six multiple wheat-rye introgression lines with 5RS·5AL+4R+6R carried new resistance gene/s to stripe rust races. At adult plant stage, the wheat-rye translocation line with 1BL·1RS and 2RL·2BS exhibited low susceptibility to race TTKSK under field conditions. The wheat-rye T2DS·2RL Robertsonian translocation line (TA5094) with a new stem rust resistance gene was developed through the breakage-fusion mechanism and verified using seedling resistance assays and molecular and cytogenetic analyses. Three kompetitive allele-specific PCR (KASP) markers located on rye chromosome 2RL were identified as being closely associated with the new stem rust resistance gene. Fluorescence in situ hybridisation (FISH) analysis confirmed the resistance gene in F3:4 homozygous lines. The stem rust resistance gene in TA5094 line on chromosome 2RL arm was designated Sr59. Wheat cultivars, advanced lines and landraces from Tajikistan were assessed at seedling and adult plant stages against Sr, Yr and Lr races. Based on multipathotype assessment and molecular markers, the presence of Sr6, Sr31/Yr9/Lr26, Sr38/Yr17/Lr37, Yr2 and Yr27 and pleiotropic resistance genes Sr57/Lr34/Yr18/ and Sr2/Yr30/Lr27 was postulated. Overall, this thesis identified novel genetic resistance resources against stem rust, stripe rust and leaf rust in Tajik wheat and in wheat-alien introgressions. This resistance gene/s will be useful in diversifying the current set of resistance genes deployed to control these devastating diseases
Universities in the Ecozoic Era: Director\u27s Inaugural Lecture for the Center for Climate, Society, and the Environment
No full textIn this inaugural lecture of Gonzaga\u27s new Center for Climate, Society, and the Environment, the Center\u27s Director Brian G. Henning, Ph.D. shares his vision for the Center and its work ahead.
Dr. Brian G. Henning is the inaugural Director and founder of the Gonzaga Center for Climate, Society, and the Environment. Originally from Boise, Idaho, Dr. Henning joined faculty in 2008 and is Professor of Philosophy and Professor of Environmental Studies. An award-winning author, Dr. Henning has written or edited more than 10 books and 35 articles and chapters, including Riders in the Storm: Ethics in an Age of Climate Change (Anselm 2015) and Climate Change Ethics and the Non-human World (Routledge 2020)
Genetic characterisation of novel resistance alleles to stem rust and stripe rust in wheat-alien introgression lines
No full textBread wheat (Triticum aestivum L., 2n = 6x = 42, AABBDD) is one of the most important food crops world-wide, but is attacked by many diseases and pests that cause significant yield losses. Globally, stem rust (Sr) (Puccinia graminis f. sp. tritici Erikss & E. Henning), stripe rust (Yr) (Puccinia striiformis Westend. f. sp. tritici Eriks) and leaf rust (Lr) (Puccinia triticina Eriks) are a great threat to wheat production. The majority of the Sr, Yr and Lr resistance genes are already defeated by numerous virulent races, so enhanced genetic resistance against these devastating diseases are essential. Wheat-alien introgressions from derivatives of Secale cereale L. (2n = 2x = 14, RR), Leymus mollis (2n = 4x = 28, NsNsXmXm), Leymus racemosus (2n = 4x = 28, NsXm) and Thinopyrum junceiforme (2n = 4x = 28; J1J1J2J2) are important genetic resources for new sources of resistance genes. To identify new sources of resistance, this thesis evaluated seedling and adult plant resistance to a wide array of stem rust and stripe rust races. Three wheat-rye disomic substitution lines 2R (2D) were found to carry new resistance gene/s to stem rust races and six multiple wheat-rye introgression lines with 5RS·5AL+4R+6R carried new resistance gene/s to stripe rust races. At adult plant stage, the wheat-rye translocation line with 1BL·1RS and 2RL·2BS exhibited low susceptibility to race TTKSK under field conditions.
The wheat-rye T2DS·2RL Robertsonian translocation line (TA5094) with a new stem rust resistance gene was developed through the breakage-fusion mechanism and verified using seedling resistance assays and molecular and cytogenetic analyses. Three kompetitive allele-specific PCR (KASP) markers located on rye chromosome 2RL were identified as being closely associated with the new stem rust resistance gene. Fluorescence in situ hybridisation (FISH) analysis confirmed the resistance gene in F3:4 homozygous lines. The stem rust resistance gene in TA5094 line on chromosome 2RL arm was designated Sr59.
Wheat cultivars, advanced lines and landraces from Tajikistan were assessed at seedling and adult plant stages against Sr, Yr and Lr races. Based on multipathotype assessment and molecular markers, the presence of Sr6, Sr31/Yr9/Lr26, Sr38/Yr17/Lr37, Yr2 and Yr27 and pleiotropic resistance genes Sr57/Lr34/Yr18/ and Sr2/Yr30/Lr27 was postulated.
Overall, this thesis identified novel genetic resistance resources against stem rust, stripe rust and leaf rust in Tajik wheat and in wheat-alien introgressions. This resistance gene/s will be useful in diversifying the current set of resistance genes deployed to control these devastating diseases
Who’s that Lady?
No full textThis article considers the valiant woman from Proverbs 31 and explores the context and original identity of that woman while also questioning how to reclaim that figure for the 21st century\u27s Christian community. Henning starts by acknowledging that this figure has come to intimidate women who look to the passage because it represents an impossible ideal. Henning, however, is also equally disappointed in the way many scholars have tried to reclaim this figure by ignoring the original context and using her to suit their own needs. The author comes to the conclusion that the woman of Proverb 31 represents Woman Wisdom she is representative of another metaphor for God, and all of her super human works represent God\u27s activity towards and relationship with humanity. This figure can then be reclaimed, Henning argues, by 21st century Christians as an example of God\u27s work in community and the manner in which Christians can aspire to interact with all of humanity
Impact of Passive Voice in Requirements Engineering
No full textThis repository contains instrumentation material and results for the experiment described in the paper "On The Impact of Passive Voice Requirements on Domain Modelling" by Henning Femmer, Jan Kucera, and Antonio Vetrò from Technische Universität München.This repository was disclosed with the explicit permission of the first author of the work, Henning Femmer. It is a data recovery since the original hosting (https://www.in.tum.de/i04/~femmer/data/passives_experiment.zip) has become unavailable
Gene expression of soybean plants under infection by asian soybean rust and the effect of chemical control on seed quality
No full textSoybean crop is affected by several diseases, especially asian
soybean rust caused by Phakopsora pachyrhizi. The action of this pathogen leads
to yield losses, as well as, reduction in seed quality. Furthermore, fungicide
applications needed to control the disease, increase production costs and can
cause a residual effect on plants, which can affect the seed physiological quality.
This study was divided into two chapters. The first is “Differential gene expression
in response to asian soybean rust by cDNA-AFLP technique” that aimed at
identifing genes associated with soybean rust resistance in the cultivar
(PI459025), which has Rpp4 resistance genes. The second chapter is “Fungicides
used to control asian soybean rust and the effect on seed quality” that aimed at
evaluating the effect of fungicides used to control soybean rust in the seed
physiological and sanitary qualities. One hundred and forty one cDNA fragments
differentially expressed between inoculated and not inoculated soybean plants
were isolated by cDNA-AFLP. This strategy allowed the identification of pathogen
resistance genes which can be strong candidates to asian soybean rust
resistance. In relation to fungicides used to control asian soybean rust, they did
not affect seed physiological quality.Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPqA cultura da soja é afetada por inúmeras doenças, destacando-se
dentre essas a ferrugem asiática da soja causada pelo fungo Phakopsora
pachyrhizi. Os prejuízos em decorrência da ação desse patógeno levam a perdas
de produtividade, como também, redução na qualidade das sementes produzidas.
Todavia, aplicações de fungicidas necessárias para o controle da doença, além
de incrementar os custos de produção, podem provocar um efeito residual desses
produtos na planta, podendo afetar a qualidade fisiológica das sementes. Diante
do exposto conduziu-se esse estudo, o qual foi dividido em dois capítulos. O
primeiro trabalho “Expressão gênica diferencial em resposta à ferrugem asiática
da soja pela técnica de cDNA-AFLP” teve por objetivo identificar genes
relacionados à resistência à ferrugem da soja através da técnica de cDNA-AFLP
na cultivar (PI459025) a qual possui genes de resistência Rpp4. O segundo
capítulo intitulado “Efeito de fungicidas utilizados no controle da ferrugem asiática
da soja na qualidade de sementes” tendo por objetivo avaliar o efeito de
aplicações de fungicidas utilizados no controle da ferrugem da soja na qualidade
sanitária e fisiológica de sementes. Pela técnica de cDNA-AFLP foi possível isolar
141 fragmentos de cDNAs diferencialmente expressos entre plantas inoculadas e
não inoculadas com o patógeno causador da ferrugem permitindo identificar
genes relacionados com a resistência a patógenos os quais podem ser apontados
como fortes candidatos para resistência a doença. Com relação aos fungicidas
para o controle da ferrugem da soja, esses não prejudicaram a qualidade
fisiológica das sementes
- …
