scholarly journals Catalase Polymorphism and Inheritance in Peach

HortScience ◽  
1992 ◽  
Vol 27 (1) ◽  
pp. 41-43 ◽  
Author(s):  
Dennis J. Werner

Catalase isozymes were examined in a wide range of peach [Prunus persica (L.) Batsch] cultivars representing historical U.S. cultivars, commercial cultivars from numerous North American breeding programs, and the peach plant introduction (PI) collection. All historical peach cultivars from the United States and those released from commercial breeding programs were fixed for the slow (Cat l-2) allele, with the exception of `Belle of Georgia', `Honeyglo' nectarine, and various cultivars from the Univ. of Florida breeding program, which possessed a fast-migrating (Cat 1-l) allele in homozygous or heterozygous state. Polymorphism was revealed in the 51 peach PI clones examined, with allelic frequencies of 0.69 and 0.31 for the Cat l-2 and Cat l-1 alleles, respectively. Most PIs that originated directly from China were homozygous Cat l-l/Cat l-l, while most PI clones introduced from Europe were homozygous Cat l-2/Cat l-2. Examination of the catalase genotype of cultivars previously proposed as the possible male parent of `Belle of Georgia' (`Champion', `Early Crawford', `Late Crawford', `Oldmixion Free', and `Stump-the-World') revealed that none of these cultivars could have been the male parent of `Belle of Georgia'. Segregation data from various peach crosses was consistent with the hypothesis that catalase polymorphism could be explained by the presence of two alleles at a single locus.

1993 ◽  
Vol 118 (4) ◽  
pp. 519-524 ◽  
Author(s):  
S. Pérez ◽  
S. Montes ◽  
C. Mejía

A wide range of peach [Prunus persica (I,.) Batsch] germplasm was collected from the most important peach growing regions in Mexico and some Latin American countries, as well as from breeding programs in the United States, Europe, and South Africa. Budded trees, seedlings derived from selfing cultivars and selections, and seed samples from various growing regions were propagated and planted in central Mexico. Twenty eight morphological or phenological variables were recorded on 52 accessions representing different geographic regions. The highest degree of variability was observed for traits related to bud density and distribution, and to phenological variables associated with temperature requirements such as budbreak and harvest seasons, leaf fall, fruit development, and seed stratification period. Principal component analysis (PCA) integrated groups of phenotypes based mainly on growth habit, shoot diameter, bud and leaf size, as well as resistance to powdery mildew, rust, and frost. PCA provides support for the development of objectives and breeding strategies in the search for germplasm and cultivars for nontraditional peach growing regions.


2021 ◽  
pp. 932-950
Author(s):  
Vladislav Vyacheslavovich Emelyanov

Every few decades, the world order changes due to various geopolitical, economic and other circumstances. For example, as a result of globalization, the world order has undergone significant changes in the last forty years. Globalization has led to the destruction of the postwar world order, as well as to world leadership by the United States and the West. However, in recent decades, as a result of globalization, the U.S. and the West began to cede their leadership to developing countries, so there is now a change in the economic structure of relations in the world system. Today the center of economic growth is in the East, namely in Asia. There are no new superpowers in the world at the moment, but the unipolar world will cease to exist due to the weakening of the U. S. leadership, which will lead to a change in the world order. A new leader, which may replace the U. S., will not have as wide range of advantages as the USA has. Most likely, the essence of the new order will be to unite the largest countries and alliances into blocks, for example, the USA together with the Trans-Pacific Partnership, the EU, etc. The article outlines forecasts of GDP growth rates as well as the global energy outlook; analyzes the LNG market as well as the impact of the pandemic on the global oil and gas market; and lists the characteristics of U. S. geopolitics.


Author(s):  
Erica Ashbaugh ◽  
Gary A. Goreham

Bread for the World, Inc. is a 501(c)4 faith-based organization whose purpose is to advocate policymakers to end hunger and poverty. The organization began in the early 1970s, founded by Arthur Simon, who became its first president. Simon’s 1975 book, Bread for the World, outlined the vision and scope of the organization, not as a service-delivery entity but as an education, coalition-building, and advocacy organization. David Beckmann, author of Exodus from Hunger: We Are Called to Change the Politics of Hunger, is the organization’s president as of 1991. The organization is supported by individuals, local congregations, denominations, and other organizations. Two related affiliates were created to assist in the hunger-ending goal. First, Bread for the World Institute, a 501(c)3 organization, conducts research on domestic and global hunger issues and disseminates reports to those advocating for hunger-ending policy with its Annual Hunger Report. Second, the Alliance to End Hunger, a 501(c)3 organization, brings together a wide range of both faith-based and secular organizations in the fight against hunger. Bread for the World has a noteworthy history of advocacy and collaboration. They actively advocated in 2000 for Jubilee 2000, a debt relief and forgiveness program for over 40 countries. They promoted the African Growth and Opportunity Act of 2000 to promote quality of life, human rights, and equitable trade relationships between the United States and African countries. Bread for the World advocated for the Food for Peace Acts and the 2016 Foreign Aid Transparency and Accountability Act to extend foreign aid more quickly and efficiently. They worked with legislators regarding the Head Start programs and the Supplemental Nutrition Assistance program. Bread for the World used a Feed Our Children letter-writing campaign for individuals to put pressure on legislators to place priority on children’s food programs. As winner of the World Food Prize in 2010, David Beckmann stated, “We must talk to real people in power, about concrete issues, and not about big dreams.” Bread for the World’s goal is the UN’s Sustainability Development Goal to eliminate hunger by 2030.


2020 ◽  
Vol 31 (6) ◽  
pp. 678-701 ◽  
Author(s):  
Michael Muthukrishna ◽  
Adrian V. Bell ◽  
Joseph Henrich ◽  
Cameron M. Curtin ◽  
Alexander Gedranovich ◽  
...  

In this article, we present a tool and a method for measuring the psychological and cultural distance between societies and creating a distance scale with any population as the point of comparison. Because psychological data are dominated by samples drawn from Western, educated, industrialized, rich, and democratic (WEIRD) nations, and overwhelmingly, the United States, we focused on distance from the United States. We also present distance from China, the country with the largest population and second largest economy, which is a common cultural comparison. We applied the fixation index ( FST), a meaningful statistic in evolutionary theory, to the World Values Survey of cultural beliefs and behaviors. As the extreme WEIRDness of the literature begins to dissolve, our tool will become more useful for designing, planning, and justifying a wide range of comparative psychological projects. Our code and accompanying online application allow for comparisons between any two countries. Analyses of regional diversity reveal the relative homogeneity of the United States. Cultural distance predicts various psychological outcomes.


2020 ◽  
Vol 11 (2) ◽  
Author(s):  
R Chris Gaynor ◽  
Gregor Gorjanc ◽  
John M Hickey

Abstract This paper introduces AlphaSimR, an R package for stochastic simulations of plant and animal breeding programs. AlphaSimR is a highly flexible software package able to simulate a wide range of plant and animal breeding programs for diploid and autopolyploid species. AlphaSimR is ideal for testing the overall strategy and detailed design of breeding programs. AlphaSimR utilizes a scripting approach to building simulations that is particularly well suited for modeling highly complex breeding programs, such as commercial breeding programs. The primary benefit of this scripting approach is that it frees users from preset breeding program designs and allows them to model nearly any breeding program design. This paper lists the main features of AlphaSimR and provides a brief example simulation to show how to use the software.


2017 ◽  
Vol 22 (6) ◽  
pp. 41-55
Author(s):  
Bogusław Ślusarczyk ◽  
Bożena Sowa

Economic crisis, which took place in the years 2008–2009, was one of the biggest cri-ses, which affected the world’s economy. It began in the United States, and then it moved through most countries in the world, especially the highly developed, and the effects of this crisis have been very painful for the entire global economy. It should be stressed that the framework of the economic crisis include the period 2008–2010, although its roots go back to an earlier period than 2008, and its consequences – accord-ing to the authors – will be felt for many years. In the wide range, the financial crisis referred to the economic collapse, caused by making the wrong decisions by the monetary authorities of individual countries, unskilful ac-tions of speculators and recession on the course of business cycle. Undoubtedly it was globalisation which contributed to such state, which has led to a great openness of economies, which in turn resulted in the transfer between all economic phenomena, both the positive and the negative. Moreover, globalisation caused the fact that crisis phenomena are growing strong, more and more noticeable and faster and faster move between individual countries. Trade and financial relations, and (perhaps most importantly) the panic in the markets, are responsible for this process.


Author(s):  
Jiang Junjing

Based on a wide range of sources, the article analyzes the impact of China's trade and economic relations with the United States. Several periods of interaction between countries after the end of World War II are considered. Special attention is paid to the period of restoration of diplomatic relations since 1979. Based on various sources and historiography, the author analyzes the researchers' points of view on the impact of economic issues on the relations between the two countries. In the course of the research, the author came to the conclusion that an important aspect in the direction of the foreign economic policy of the People’s Republic of China in the first post-war years was the ideological factor. The article presents an analysis of changes in the vector of China's foreign policy in different periods. The main ways of interaction between the United States and China are described, depending on changing foreign policy doctrines. The reforms launched in 1978 provided China with economic growth and a growing prestige on the world stage, which is still present today. The rapprochement between the United States and China after the collapse of the Soviet Union in 1991 brought certain economic benefits for the two countries. However, the aggravation of relations between the countries in the new Millennium provides an opportunity for new assessments of the PRC's position on the world stage. Trump’s coming to power in the United States is regarded as an economic war between the two countries. China's increased investment capacity and technological independence make it an attractive partner for other countries, which in turn has a negative impact on trade with America. The most important thing in this situation is the fact that the globalization of the world economy caused by scientific and technological progress, including the rather close interweaving of the US and Chinese economies, contradicts the national interests of both countries, which are trying to strengthen their positions and role in the world economy. Based on the analyzed material, the author comes to the conclusion that recently the foreign policy relations between China and the United States directly depend on the economic interests of the parties.


Author(s):  
S. V. Zhukov ◽  
A. О. Maslennikov ◽  
M. V. Sinitsyn

The United States started lique fied natural gas (LNG) export in 2016 and just in two years became the world’s fourth largest exporter of LNG. There is a high probability that in the near future the U.S. will emerge as the third largest LNG exporter after Australia and Qatar. The article focuses on the factors, which ensure global competitiveness of U.S. LNG until 2030. The authors show that: first, the first wave of American export LNG projects significantly speeded up restructuring of contract system in the world gas trade as well as suppor ted development of a more flexible mechanism of natural gas pricing; secondly, production costs of the associated natural gas in the U.S. are relatively low and it is highly probable to expect Henry hub gas price to stabilize at around 2.5 dollars per MMBTU in the long run, what gives the American gas producers potential capability to significantly improve their global competitiveness by means of production and transportation costs reduction; fourthly, new waves of U.S. LNG export will not necessa rily be linked to the Henry Hub index, but to a wide range of price indicators, inclu ding the Brent oil price. With increasing flows of globally competitive Ameri can LNG entering the market, transformation of the institutional structure, contracts system and price mecha nism that have been unfold in the world LNG trade for the last ten to fifteen years became irreversible. That creates prerequisites for rapid formation of the world LNG market as well as with a some time lag of a global gas market.


Author(s):  
Guangqian Zhang

Background. The article is devoted to the creative activity of the outstanding Chinese composer, pianist, teacher and public figure Zhang Zhao (born in 1964). The musical heritage of Zhang Zhao covers a wide range of genres and includes symphonic, piano music, instrumental compositions, works for Chinese traditional instruments, vocal, chamber music, ballets, music of cinema and television programs, and music for large social events. Despite his notoriety in China, the United States, Canada and many European countries, Zhang Zhao is little known in Ukraine. Thus, Ukrainian musicians to date have been deprived of the opportunity to get acquainted with his work. Since the music of Zhang Zhao sounds in many countries of the world, it resonates powerfully in a variety of areas, and in particular, research. To date, the work of the composer is actively studied by Chinese musicologists. However, among the publications, small articles devoted to a narrow range of problems predominate. Large-scale studies devoted to any area of his music have not yet been created. One of the most important topics relating to the composer’s work is the study of his views on musical art. Zhang Zhao’s vision of the further development of Chinese piano art reveals the composer’s worldview, his creative credo. This question is decisive for studying the composer’s musical heritage, defining his genre-style priorities. Objectives. The purpose of the article is to reveal the peculiarities of Zhang Zhao’s artistic worldview in order to promote the fullest possible identification of the ideas of the composer, the disclosure of the artistic concepts of his works. Methods of research are based on a set of scientific approaches necessary for the disclosure of its theme. The complex approach, combining the principle of musical-theoretical, musical-historical and performing analysis, is taken as the basis of the methodology. Results. Important for the disclosure of the creative worldview of the composer is the study of his statements on the ways of further development of musical art. His attitude and vision of his role in this process, the Chinese musician has repeatedly stated in an interview with domestic journalists. According to Zhang Zhao, the main issue that should concern modern composers is the place of the musical art of their country in world culture. Zhang Zhao found in the face of the pianist virtuoso his Yundi Li adherent. The collaboration between the composer and the performer began in 2011. Zhang Zhao took part in a large-scale theatrical performance at the Third Congress of BRICS leaders in Sanya. Then Yundi Li performed on the stage of the concert hall of Zhang Zhao’s play “In the most remote place” and “Chinese piano dream”. Zhang Zhao is committed to the concept of inheritance and the promotion of a culture of national music. The Chinese compare Zhang Zhao with the outstanding leader of the Polish people Chopin, who dedicated his life to the transformation in piano music of various genres. Piano works by Zhang Zhao adorned the world culture with the introduction of Chinese national motives into it. The composer introduced listeners to the air melodic lines of original works and filled his works with a complex texture, making them attractive for acquaintance with the rich traditional culture of China. Developing national piano art, Zhang Zhao inscribes the Chinese chapter in the world culture with his inherent passion and love for life. In addition to studying composition, performing and teaching, Zhang Zhao, is active in public activities, being a music professor at the Central University for Nationalities. He pays great attention to the development of the artistic taste of students, shares his own musical ideas and aesthetic principles. The composer made great efforts and energy to create the “Chinese piano dream”. To popularize this work, they, together with Yundi Li and the Shanghai People’s Orchestra conducted nationwide tours, visited Taiwan, and outlined other projects. Despite the fact that Professor Zhang Zhao has a very tight work schedule, he nevertheless finds time to talk with his students about the place of national music and its prospects. In the “Chinese Piano Dream”, the composer sought to reflect the essence of the musical culture of the Chinese nation. He embodied the dreams of the older generation of pianist composers and performers about the perfection of the Chinese piano scene, set a high goal – to show the artistic value of the Chinese piano piece on the world stage, took on the mission to inherit the national culture and pass it on to the next generations. In the works of Zhang Zhao, the interests of the Chinese and global world level intersect. This is due to the amazing richness of the composer’s creative worldview, which is open to everything significant in life and art. On this basis, the composer came to important conclusions about the role of contemporary classical musical art in people’s lives in China and in the world. Conclusions. For more than twenty years, Zhang Zhao is in the creative search for his musical style. He carefully investigated the development of ethnic music, which enabled him to create his piano works, which are distinguished by a unique and mature language.


2013 ◽  
Vol 47 (5) ◽  
pp. 56-68 ◽  
Author(s):  
William Kohnen

AbstractThe world of manned underwater vehicles (MUV) in 2013 counts a total of 95 active submersibles used for ocean research, tourism, and commercial, leisure, and security applications. The MUV industry safety record remains pristine, with not a single incident involving loss of life in over 40 years. The paper reviews the state and future directions for the world’s deepest ocean research submersibles. In 2012 and 2013, the world of deep research submersibles saw dramatic advances, reaching full ocean depth for the first time in more than 50 years. The record of the world’s deepest submersible held by Japan’s Shinkai 6500, rated to 6,500 m depth, for almost 25 years was surpassed by China’s 10-year development project of the Jiaolong submersible, rated to 7,000 m. The Jiaolong successfully completed its multiyear testing program, achieving full design depth in June 2012. This record feat was eclipsed, however, by the surprise disclosure and full ocean depth dive by James Cameron’s Deepsea Challenger, diving to a depth of 10,908 m in the Mariana Trench just months earlier. This depth had not been reached since the historic dive of the bathyscaphe Trieste in 1960, and brings new energy for several national organizations to develop full ocean depth submersibles. There are today a total of 14 national and commercial submersibles capable of diving 1,000 m or deeper, offering a wide range of services. This also provides a global network of rescue capability with locations in the United States, China, Japan, Russia, France, Spain, Canada, and Portugal.


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