The relationship among freezing tolerance, vernalization requirement, Ppd alleles and winter hardiness in European wheat cultivars

2017 ◽  
Vol 155 (9) ◽  
pp. 1353-1370 ◽  
Author(s):  
A. GORASH ◽  
R. ARMONIENĖ ◽  
Ž. LIATUKAS ◽  
G. BRAZAUSKAS

SUMMARYWinter hardiness of wheat is a complex trait involving a system of structural, regulatory and developmental genes, which interact in a complex pathway. The objective of the present work was to study the relationship among the main traits determining the level of adaptation and the possibility for target manipulation of breeding material by using molecular markers and phenological parameters. Wheat cultivars from different ecoclimatic environments of Europe were included for analysis. Gene-specific assay showed that photoperiod sensitivity of the studied cultivars was determined by polymorphism in the Ppd-D1 allele. The study established the relationship among winter hardiness, LT50 (the temperature at which 50% of plants are killed), photoperiod sensitivity, vernalization duration and earliness per se genes in the environment of Lithuania. The cultivars from Northern and Western Europe exhibited stronger requirement for vernalization and photoperiod. Although the group of cultivars from the southern latitudes were characterized by earliness, they possessed a stronger level of LT50. The level of LT50 was found to be the most crucial component of winter hardiness, the other traits served as supplementary components.

Author(s):  
Robert Jackson ◽  
Georg Sørensen

This chapter examines three important debates in International Political Economy (IPE). The first debate concerns power and the relationship between politics and economics, and more specifically whether politics is in charge of economics or whether it is the other way around. The second debate deals with development and underdevelopment in developing countries. The third debate is about the nature and extent of economic globalization, and currently takes places in a context of increasing inequality between and inside countries. This debate is also informed by the serious financial crisis of 2008 and has raised questions regarding the viability of the current model of capitalism in the United States and Western Europe.


2020 ◽  
Vol 24 ◽  
pp. 39-55
Author(s):  
Julyan Arbel ◽  
Olivier Marchal ◽  
Hien D. Nguyen

We investigate the sub-Gaussian property for almost surely bounded random variables. If sub-Gaussianity per se is de facto ensured by the bounded support of said random variables, then exciting research avenues remain open. Among these questions is how to characterize the optimal sub-Gaussian proxy variance? Another question is how to characterize strict sub-Gaussianity, defined by a proxy variance equal to the (standard) variance? We address the questions in proposing conditions based on the study of functions variations. A particular focus is given to the relationship between strict sub-Gaussianity and symmetry of the distribution. In particular, we demonstrate that symmetry is neither sufficient nor necessary for strict sub-Gaussianity. In contrast, simple necessary conditions on the one hand, and simple sufficient conditions on the other hand, for strict sub-Gaussianity are provided. These results are illustrated via various applications to a number of bounded random variables, including Bernoulli, beta, binomial, Kumaraswamy, triangular, and uniform distributions.


Poliarchia ◽  
2021 ◽  
Vol 3 (5) ◽  
pp. 93-131
Author(s):  
Emma Klever

The political reality of the European Union is not reflected in the general discourse on the relationship between Western Europe and Central and Eastern Europe, which is characterized by an adverse attitude towards the latter. This impacts identity construction on the European level, where Central and Eastern Europe has long been regarded as the “Other” against which the European “self ” was defined. However, a new discourse on this relationship has emerged in literary works written by scholars and journalists that are able to take an overarching perspective. The present study analyses four publications to see how the relationship between Western Europe and Central and Eastern Europe is portrayed in terms of the self and the Other, employing the Discourse Historical Approach and a spectrum of the self and the Other perspectives. It emerges that the discussed authors share a discourse which respects differences, focuses on similarities as well as differences and shows an awareness of the interwovenness of the narratives of the self and the Other. This new, shared discourse holds directions for the further development of a European-wide discourse that includes the same notions of respect and the interwovenness of narratives, and which could in turn influence European identity construction.


2021 ◽  
pp. 111-134
Author(s):  
Sarah Mortimer

The early sixteenth century saw the rise of three distinct Islamic empires, ruled by the Ottomans, Safavids, and Mughals. In each, rulers had to find ways to legitimize their authority and their expansionist agenda, co-opting elites while also responding to the exigencies of economic change and military developments. The Ottomans became increasingly identified with Sunni Islam and the Safavids with Shi’ite interpretations of faith, but all three empires were religiously heterogeneous and they needed to cultivate an administrative structure and ideal of service which was not simply tied to a particular spiritual path. In the Ottoman empire there was an important debate about the relationship between those policies and principles which seemed necessary for stability and prosperity, and the demands of the divine law as understood by religious elites. The Mughal emperor Akbar, on the other hand, countered religious orthodoxy with his own version of saintliness and divine favour. In contrast to the lands of Western Europe, there was little interest in developing a concept of natural law whose purpose was earthly flourishing rather than spiritual fulfilment. Political thinking in the Islamic empires tended to emphasize universal principles, although in the Ottoman lands there came to be a recognition of the particular circumstances and challenges faced by that Empire.


1994 ◽  
Vol 45 (6) ◽  
pp. 1171 ◽  
Author(s):  
GJ Lee ◽  
AJ Williams

Sheep from four Merino flocks, different in annual clean fleece production when grazed together, were offered a range of nutritional treatments to compare their ability to digest dietary organic matter (experiment 1) and to compare the relationships of wool growth and fibre diameter with nutrient intake (experiment 2). The sheep were selected from a finewool (Fl), a strong wool (S), and two medium-Peppin (MP6 and MP10) flocks. The nutritional treatments varied intakes of two pelleted diets-B and F. Diet B consisted of oat grain, lucerne chaff, and oaten straw, while diet F was as for B but fortified with fishmeal. The digestibility of both diets was negatively related to the level of intake, and there were some differences between the flocks in their ability to digest organic matter. Clean wool growth per unit area of skin was curvilinearly related (P < 0.001) to N intake, but was not influenced by diet per se. The regression coefficient for the relationship of clean wool growth with N intake and the estimated maximum wool growth rate of flock F1 were less than the other flocks. However, flock MP10 grew less wool than flocks S and MP6 at any given intake. Variation in (fibre diameter)2 accounted for 0.6 of the variation in wool growth, with responses in fibre diameter to intake being similar to those observed in wool growth. The responses in plasma cystine of the flocks to N intake differed, with the relationship for flock F1 being curvilinear and reaching a maximum at an intake of 27 g N day-1, while the responses of the other flocks were essentially linear. The relationships between plasma cystine level and wool growth differed between the flocks such that wool growth of sheep from flocks S and MP6 was more responsive to increased plasma concentration of cystine.


Author(s):  
Bielefeldt Heiner, Prof ◽  
Ghanea Nazila, Dr ◽  
Wiener Michael, Dr

The dominant concerns of this chapter relate to two aspects of the relationship between ‘religion’ and the ‘right to life’. One is the need to ensure that nobody is denied the right to life on grounds of their religion or belief (this being directly related to freedom of religion or belief), and the other is that nobody should be denied the right to life in the name of religion or belief. At the same time, the chapter also considers the broader horizon of multifaceted issues that are often considered relevant to life and religion. Issues such as religious values relating to the importance of life, and religious positions on abortion and on the death penalty are discussed in order to illustrate that, although not per se falling within freedom of religion or belief, they can be rendered relevant for the practice of freedom of religion or belief, depending on religious or moral convictions which people lay claim to.


2020 ◽  
Vol 8 (11) ◽  
pp. 1822
Author(s):  
Priscila Ikeda ◽  
Jaire Marinho Torres ◽  
Lívia Perles ◽  
Elizabete Captivo Lourenço ◽  
Heitor Miraglia Herrera ◽  
...  

The relationship among bats, ectoparasites and associated microorganisms is important to investigate how humans can become exposed to zoonotic agents. Even though the diversity of Bartonella spp. in bats and ectoparasites has been previously reported, the occurrence of gltA genotypes within hosts has not been assessed so far. We aimed to investigate the genetic diversity of Bartonella spp. in non-hematophagous bats and associated ectoparasites by assessing cloned gltA Bartonella genotypes in intra- and inter-hosts levels, as well as by using three additional molecular markers. Overall, 13.5% (18/133) bat blood samples, 17.18% bat flies (11/64) and 23.8% (5/21) Macronyssidae mite pools showed to be positive for Bartonella spp. Seventeen positive samples were submitted to gltA-cloning and three clones were sequenced for each sample. We also obtained 11, seven and three sequences for nuoG, rpoB and ftsZ genes, respectively. None were positive for the other target genes. We found at least two genotypes among the three gltA-cloned sequences from each sample, and 13 between all the 51 sequences. Among the nuoG, rpoB and ftsZ sequences we found eight, five and three genotypes, respectively. In the phylogenetic analysis, the sequences were positioned mainly in groups related to Bartonella identified in rodents, bats and bat flies. Herein, we showed the genetic diversity of Bartonella in bat’s blood and associated ectoparasites samples at both intra- and inter-host levels.


2019 ◽  
pp. 411-421
Author(s):  
Ivica Cairovic

Eadberht was the king of Northumbria from 737/738 until 758, and his reign was understood and interpreted through the centuries as a return to the imperial desires and hints that the Nortambrian rulers had in the 7th century. On the other hand, the economic development of the northern part of the British Isles was obvious in this period. Although Eadberht had major internal political problems, as several candidates for the position of the ruler were a permanent danger, he confirmed his status in several battles in which he defeated the rivals for the throne and continued to rule independently. 421 In the year of 758, Eadberht abdicated for the benefit of his son and settled down in York, where his brother Ecgbert was Archbishop. This act shows that the prodigious relationship between these two rulers was one of the strongest links in an unbroken chain of close relations between state and Church in the first half of the 8th century. Archbishop Ecgbert died in 766 and was buried in the Cathedral Church in York. During his archbishop service, Ecgbert was seen as a church reformer, but the same continued after his death, as indicated by the creators of the canons and disciplinary provisions for the Anglo-Saxon clergy and the laity who attributed their writings to Ecgbert. It is concluded that Ecgbert was serving the Church in the canonical, dogmatic, pastoral, and exegetical fields. On the other hand, concerning the state, the authorities and Anglo-Saxon society, in general, had the help of his brother, King Eadberht. It was this family relationship that paved the way for the relationship between the Church and the state in Anglo-Saxon England. Thus, a very close relationship between the Archbishop and the King in the later period of the British Isles is proof of the tradition that started in the first half of the 8th century in Northumbria and York. On the other hand, the relationship between Church and state property was established in the earlier period, and in the period when Ecgbert and Eadberht ruled, it is only directed to the family of the ruling house deciding on the property of the Church and the state. One of the best examples for this is family monasteries, headed by a hegumen from the ruling family, who worked with a relative who ruled the areas in which the monastery was. This paper analyzes available historical sources to determine the relationship between clergymenand rulers in Anglo-Saxon England in the first half of the 8th century. The historical methodology in this study will describe the relationship between Church and State in Anglo-Saxon England, on the example of Eadberht, King Northumbria (737/738-758), and his brother Ecgbert, the first Archbishop of York (735-766). An example of the symphony of church and state in Anglo-Saxon England in the first half of the 8th century is the example of Ecgbert and Eadberht, that can serve to understand later historical phenomena in the history of the Church and the state of Western Europe, especially when analyzing the phenomenon of investiture. Thus, the proposed research with its conclusion hypotheses can serve as a first step in the process of analyzing the phenomenon of investiture and its eventual conclusion in the late Middle Ages in Western Europe.


2019 ◽  
Vol 79 (01) ◽  
Author(s):  
T. L. Prakasha ◽  
S. Chand ◽  
A. N. Mishra ◽  
K. S. Solanki ◽  
J. B. Singh ◽  
...  

This study aimed to investigate the genetic basis of leafrust resistance in three bread wheat cultivars viz., MP 3288, HI 1418 and HI 784 which have been maintaining high levels of resistance to leaf rust since their release in 2011, 2000, and 1983, respectively. These cultivars also possess leaf tip necrosis phenotype. These were crossed with a susceptible bread wheat cultivar Lal Bahadur and also among themselves in non-reciprocal manner.The F1 , F2 and F3 populations were raised and the inheritance of leaf rust resistance was studied using prevalent and highly virulent Puccinia triticina pathotype 77-5 (121R63-1) during 2014- 17. These studies showed that the field (adult-plant) resistance of these cultivars is governed by two dominant genes each. Closely linked molecular markers L34DINT9F and L34PLUSR revealed the presence of non-race specific adult-plant leaf rust resistance gene Lr34 in all cultivars of present study. Absence of the other documented race nonspecific APR genes viz., Lr46, Lr67 and Lr68 was indicated in all the three test cultivars based on genotyping with closely linked molecular markers WMC44, CFD71 and csgs, respectively. The other dominant gene appears to be an allstage resistance gene since all the three cultivars displayed high levels of seedling resistance to the test pathotype. Stable resistance of these cultivars could be due to synergistic/additive or complementary effects resulting from the combination of Lr34 and the all-stage resistance gene.


2012 ◽  
Vol 38 (No. 1) ◽  
pp. 41-49 ◽  
Author(s):  
J. Košner ◽  
K. Pánková

Substitution lines with the chromosome 3B of the Czech alternative cultivar&nbsp;Česk&aacute; Přes&iacute;vka (CP) in the genetic&nbsp;background of the wheat cultivars Zdar, Vala, Ko&scaron;utka, Jara and Sandra, differing in their requirements of vernalisation and photoperiod, were compared with the original cultivars under short and long photoperiod, to evaluate the effects of genes, located on the chromosome 3B of CP, on earliness and the response to photoperiod and vernalisation. The results suggest that these genes have only a small effect upon the vernalisation requirement, but are more related to the response to photoperiod. However, the genes on the substituted chromosome appear to influence the earliness per se and very likely interact also with the photoperiodic response. &nbsp;


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